owl::TSlider Class Reference

An abstract base class derived from TScrollBar, TSlider defines the basic behavior of sliders (controls that are used for providing nonscrolling, position information). More...

#include <owl/slider.h>

Inheritance diagram for owl::TSlider:

Public Member Functions
	TSlider (TWindow *parent, int id, int x, int y, int w, int h, TResId thumbResId, TModule *module=0)
	Constructs a slider object setting Pos and ThumbRgn to 0, TicGap to Range divided by 10, SlotThick to 17, Snap to true, and Sliding to false.
	TSlider (TWindow *parent, int resId, TResId thumbResId, TModule *module=0)
	Constructor for a TSlider object created from resource.
	TSlider (THandle hWnd, TModule *module=0)
	Constructs a slider object to encapsulate (alias) an existing control.
	~TSlider () override
	Destructs a TSlider object and deletes ThumbRgn.
Overload TScrollBar virtual functions
void	GetRange (int &minValue, int &maxValue) const override
	Returns the end values of the present range of slider thumb positions in minValue and maxValue.
auto	GetPosition () const -> int override
	Returns the slider's current thumb position.
void	SetRange (int minValue, int maxValue, bool redraw=true) override
	Checks and sets the slider range.
void	SetPosition (int thumbPos)
	Sets the position of the thumb and always redraws.
void	SetPosition (int thumbPos, bool redraw) override
	Sets the position of the thumb and always redraws.
New settings introduced by sliders
void	SetRuler (int ticGap, bool snap=false)
	Sets the slider's ruler.
void	SetRuler (int tics[], int ticCount, bool snap=false)
	Sets the ruler's custom tics and snap.
void	SetSel (int start, int end, bool redraw=true)
	Set a selection range for the slider.
void	GetSel (int &start, int &end)
New messages (version 4.70)
HWND	GetBuddy (bool loc=true) const
void	SetBuddy (HWND buddy, bool loc=true)
HWND	GetTooltips () const
void	SetTooltips (HWND tooltip)
void	SetTipSide (int loc)
Public Member Functions inherited from owl::TScrollBar
	TScrollBar (TWindow *parent, int id, int x, int y, int w, int h, bool isHScrollBar, TModule *module=0)
	Constructs and initializes a TScrollBar object with the given parent window (parent), a control ID (id), a position (x, y), and a width and height (w, h).
	TScrollBar (TWindow *parent, int resourceId, TModule *module=0)
	Constructs a TScrollBar object to be associated with a scroll bar control of a TDialog object.
	TScrollBar (THandle hWnd, TModule *module=0)
	Constructs a scroll bar object to encapsulate (alias) an existing control.
int	GetLineMagnitude () const
	Returns the current delta to move the thumb when line up/line down is received.
void	SetLineMagnitude (int linemagnitude)
	Sets the delta to move the thumb when line up/line down is received.
int	GetPageMagnitude () const
	Returns the current delta to move the thumb when page up/page down is received.
void	SetPageMagnitude (int pagemagnitude)
	Sets the delta to move the thumb when page up/page down is received.
void	Transfer (TScrollBarData &data, TTransferDirection direction)
	Safe overload.
virtual int	DeltaPos (int delta)
	Calls SetPosition to change the scroll bar's thumb position by the value supplied in delta.
virtual void	GetScrollInfo (SCROLLINFO *info) const
	Retrieves the scroll info.
virtual void	SetScrollInfo (SCROLLINFO *info, bool redraw=true)
	Sets scrollbar info.
virtual void	SBLineUp ()
	Calls SetPosition to move the thumb up or left (by LineMagnitude units).
virtual void	SBLineDown ()
	Calls SetPosition to move the thumb down or right (by LineMagnitude units).
virtual void	SBPageUp ()
	Calls SetPosition to move the thumb up or left (by PageMagnitude units).
virtual void	SBPageDown ()
	Calls SetPosition to move the thumb down or right (by PageMagnitude units).
virtual void	SBThumbPosition (int thumbPos)
	Calls SetPosition to move the thumb.
virtual void	SBThumbTrack (int thumbPos)
	Calls SetPosition to move the thumb as it is being dragged to a new position.
virtual void	SBTop ()
	Calls SetPosition to move the thumb to the top or right of the scroll bar.
virtual void	SBBottom ()
	Calls SetPosition to move the thumb to the bottom or right of the scroll bar.
virtual void	SBEndScroll ()
	User released the mouse after scrolling.
void	EvHScroll (uint scrollCode, uint thumbPos, HWND hWndCtl)
	Response table handler that calls the virtual function (SBBottom, SBLineDown and so on) in response to messages sent by TWindow::DispatchScroll.
void	EvVScroll (uint scrollCode, uint thumbPos, HWND hWndCtl)
	Response table handler that calls the virtual function (SBBottom, SBLineDown and so on) in response to messages sent by TWindow::DispatchScroll.
Public Member Functions inherited from owl::TControl
	TControl (TWindow *parent, int id, LPCTSTR title, int x, int y, int w, int h, TModule *module=nullptr)
	Invokes TWindow's constructor, passing it parent (parent window), title (caption text), and module.
	TControl (TWindow *parent, int id, const tstring &title, int x, int y, int w, int h, TModule *module=nullptr)
	String-aware overload.
	TControl (TWindow *parent, int resourceId, TModule *module=nullptr)
	Constructs an object to be associated with an interface control of a TDialog object.
	TControl (TWindow *parent, int resourceId, const tstring &title, TModule *=nullptr)
	Overload for controls loaded from resource Allows the title specified in the resource data to be overridden.
	~TControl () override
Public Member Functions inherited from owl::TWindow
void	TraceWindowPlacement ()
	TWindow (TWindow *parent, LPCTSTR title=nullptr, TModule *module=nullptr)
	Adds this to the child list of parent if nonzero, and calls EnableAutoCreate so that this will be created and displayed along with parent.
	TWindow (TWindow *parent, const tstring &title, TModule *module=nullptr)
	String-aware overload.
	TWindow (HWND handle, TModule *module=nullptr)
	Constructs a TWindow that is used as an alias for a non-ObjectWindows window, and sets wfAlias.
virtual	~TWindow () override
	Destroys this window (unless this is an alias) and the children.
TApplication *	GetApplication () const
	Gets a pointer to the TApplication object associated with this.
virtual bool	Register ()
	Registers the Windows registration class of this window, if this window is not already registered.
TScroller *	GetScroller ()
	Returns the associated scroller object for this window.
void	SetScroller (TScroller *scroller)
	Sets the scroller object for this window.
virtual void	CloseWindow (int retVal=0)
	Determines if it is okay to close a window before actually closing the window.
TWindowAttr &	GetWindowAttr ()
	Returns the TWindowAttr structure, which contains the window's creation attributes.
const TWindowAttr &	GetWindowAttr () const
	Returns the TWindowAttr structure, which contains the window's creation attributes.
LPCTSTR	GetCaption () const
	Returns the Title member of TWindow.
virtual bool	CanClose ()
	Use this function to determine if it is okay to close a window.
void	ChildBroadcastMessage (TMsgId, TParam1=0, TParam2=0)
	Sends the specified message to all immediate children using SendMessage.
TResult	HandleMessage (TMsgId, TParam1=0, TParam2=0)
	Dispatches the given message using the response table.
virtual TResult	EvCommand (uint id, HWND hWndCtl, uint notifyCode)
	WindowProc calls EvCommand to handle WM_COMMAND messages.
virtual TResult	EvNotify (uint id, TNotify &notifyInfo)
	Handles WM_NOTIFY and subdispatch messages from child controls.
TResult	DefaultProcessing ()
	Handles default processing of events, which includes continued processing of menu/accelerators commands and enablers, as well as notifications.
virtual void	Paint (TDC &dc, bool erase, TRect &rect)
	Repaints the client area (the area you can use for drawing) of a window.
void	SubclassWindowFunction ()
	Installs the instance thunk as the WindowProc and saves the old window function in DefaultProc.
void	SetFlag (uint mask)
	Sets the specified TWindow wfXxxx constant flags (for example wfAlias, wfTransfer, and so on) in the Flags member.
void	ClearFlag (uint mask)
	Clears the specified TWindow wfXxxx constant flags (for example wfAlias, wfTransfer, and so on) in the Flags member.
bool	IsFlagSet (uint mask)
	Returns the state of the bit flag in Attr.Flags whose mask is supplied.
void	EnableAutoCreate ()
	Ensures that an associated child window interface element is created and displayed along with its parent window.
void	DisableAutoCreate ()
	Disables the feature that allows an associated child window interface element to be created and displayed along with its parent window.
virtual TTooltip *	GetTooltip () const
virtual void	EnableTooltip (bool enable=true)
void	SetTooltip (TTooltip *tooltip)
void	EnableTransfer ()
	Enables the transfer mechanism, which allows state data to be transferred between the window and a transfer buffer.
void	DisableTransfer ()
	Disables (for the interface object) the transfer mechanism, which allows state data to be transferred to and from a transfer buffer.
TModule *	GetModule () const
	Returns a pointer to the module object.
void	SetModule (TModule *module)
	Sets the default module for this window.
tstring	LoadString (uint id) const
HBITMAP	LoadBitmap (TResId id) const
HACCEL	LoadAccelerators (TResId id) const
HMENU	LoadMenu (TResId id) const
HCURSOR	LoadCursor (TResId id) const
HICON	LoadIcon (TResId id) const
std::string	LoadHtml (TResId id) const
virtual bool	Create ()
	Creates the window interface element to be associated with this ObjectWindows interface element.
bool	CreateChildren ()
	Creates the child windows in the child list whose auto-create flags (with wfAutoCreate mask) are set.
virtual void	Destroy (int retVal=0)
	Destroys an MS-Windows element associated with the TWindow.
virtual int	Execute ()
	Creates the underlying HWND and makes it modal with the help of TApplication's BeginModal support.
virtual int	DoExecute ()
	Do actual modal execution using the Begin/End Modal support of TApplication.
void	AttachHandle (HWND handle)
void	DetachHandle ()
virtual bool	PreProcessMsg (MSG &msg)
	Called from TApplication::ProcessAppMsg() to give the window an opportunity to perform preprocessing of the Windows message.
virtual bool	IdleAction (long idleCount)
	Called when no messages are waiting to be processed, IdleAction performs idle processing as long as true is returned.
virtual bool	HoldFocusHWnd (HWND hLose, HWND hGain)
	Responds to a request by a child window to hold its HWND when it is losing focus.
int	GetId () const
	Returns Attr.Id, the ID used to find the window in a specified parent's child list.
auto	ChildWithId (int id) const -> const TWindow *
auto	ChildWithId (int id) -> TWindow *
	Returns a pointer to the window in the child window list that has the supplied id.
HWND	GetParentH () const
	Return the handle of the parent.
TWindow *	GetParentO () const
	Return the OWL's parent for this window.
TWindow *	GetParent () const
	Retrieves the OWL object of the parent window. If none exists, returns 0.
virtual void	SetParent (TWindow *newParent)
	Sets the parent for the specified window by setting Parent to the specified new Parent window object.
void	SetNext (TWindow *next)
	Sets the next window in the sibling list.
virtual bool	SetDocTitle (LPCTSTR docname, int index)
	Default behavior for updating document title is to pass it to parent frame.
bool	SetDocTitle (const tstring &docname, int index)
void	SetCaption (LPCTSTR title)
	Copies title to an allocated string pointed to by title.
void	SetCaption (const tstring &title)
void	SetCaption (uint resourceStringId)
	Sets the window title to the resource string identified by the given id.
bool	SetCursor (TModule *module, TResId resId)
	Sets the mouse cursor for the window, loading the given resId from the given module.
auto	GetBkgndColor () const -> TColor
	Returns the overriding background color set for the window.
void	SetBkgndColor (TColor color, bool shouldUpdate=true)
	Sets the background color for the window.
auto	GetTextColor () const -> TColor
	Returns the overriding text color set for the window.
void	SetTextColor (TColor color, bool shouldUpdate=true)
	Sets the text color for the window.
void	SetAcceleratorTable (TResId resId)
TResult	ForwardMessage (HWND handle, bool send=true)
	Forwards the window's current message.
TResult	ForwardMessage (bool send=true)
	Forwards the window's current message.
void	SendNotification (int id, int notifyCode, HWND hCtl, TMsgId=WM_COMMAND)
	Repacks a command message (msg) so that a child window (hCtl) can send a message to its parent regardless of whether this is a WIN16 or WIN32 application.
void	SendNotification (HWND receiver, int id, int notifyCode, HWND hCtl, TMsgId=WM_COMMAND)
	Repacks a command message (msg) so that a child window (hCtl) can send a message to its parent regardless of whether this is a WIN16 or WIN32 application.
TResult	SendNotification (int id, NMHDR &, TMsgId=WM_NOTIFY)
	Repacks a command message (msg) so that a child window (hCtl) can send a message to its parent regardless of whether this is a WIN16 or WIN32 application.
TResult	SendNotification (HWND receiver, uint id, NMHDR &, TMsgId=WM_NOTIFY)
	Repacks a command message (msg) so that a child window (hCtl) can send a message to its parent regardless of whether this is a WIN16 or WIN32 application.
virtual TResult	WindowProc (TMsgId, TParam1, TParam2)
	First virtual function called to handling incoming messages to a TWindow.
virtual TResult	DefWindowProc (TMsgId, TParam1, TParam2)
	Virtual function provides final default processing for an incoming message Calls original window proc that was subclassed, using ::CallWindowProc to make sure that registers get setup correctly.
virtual void	EvCommandEnable (TCommandEnabler &ce)
	Called by WindowProc to handle WM_COMMAND_ENABLE messages, EvCommandEnable calls the CmXxxx command-handling function or calls DefaultProcessing to handle the incoming message.
void	RouteCommandEnable (HWND hInitCmdTarget, TCommandEnabler &ce)
	Walks the chain of windows from the initial target window to this window.
void	SetTransferBuffer (void *transferBuffer, uint size)
	Sets TransferBuffer and TransferBufferSize.
template<class TBuffer >
void	SetTransferBuffer (TBuffer *transferBuffer)
	Sets TransferBuffer and TransferBufferSize.
template<class TElement , uint Count>
void	SetTransferBuffer (TElement(&transferBuffer)[Count])
	Sets TransferBuffer and TransferBufferSize.
void *	GetTransferBuffer () const
uint	GetTransferBufferSize () const
virtual void	TransferData (TTransferDirection direction)
	Transfers data between the TWindow's data buffer and the child windows in its ChildList (data is not transfered between any child windows whose wfTransfer flag is not set)
HWND	GetHandle () const
	Returns the handle of the window.
	operator HWND () const
	Allows a TWindow& to be used as an HWND in Windows API calls by providing an implicit conversion from TWindow to HWND.
bool	IsWindow () const
	Returns true if an HWND is being used.
auto	GetClassName (TCHAR *className, int maxCount) const -> int
	Returns the Windows class name for this object's window handle.
long	GetClassLong (int index) const
	Retrieves the 32-bit value containing information about the window class.
long	SetClassLong (int index, long newLong)
	Sets the long value at the specified offset (index).
uint16	GetClassWord (int index) const
	Gets a 16-bit value containing information about the class or style of the window.
uint16	SetClassWord (int index, uint16 newWord)
	Sets the word value at the specified offset (index).
LONG_PTR	GetWindowLongPtr (int index) const
	Retrieves information about the window depending on the value stored in index.
LONG_PTR	SetWindowLongPtr (int index, LONG_PTR newLong)
	Changes information about the window. For a list of constants, see GetWindowLongPtr()
long	GetWindowLong (int index) const
	Retrieves information about the window depending on the value stored in index.
long	SetWindowLong (int index, long newLong)
	Changes information about the window.
uint16	GetWindowWord (int index) const
	Retrieves information about this window depending on the value of index.
uint16	SetWindowWord (int index, uint16 newWord)
	Changes information about the window.
WNDPROC	GetWindowProc () const
WNDPROC	SetWindowProc (WNDPROC wndProc)
int	EnumProps (PROPENUMPROC proc)
	Enumerates all the items in the property list of the current window and passes them one by one to the callback function indicated in proc.
HANDLE	GetProp (uint16 atom) const
	Returns a handle to the property list of the specified window.
HANDLE	RemoveProp (uint16 atom) const
	Removes the property specified by atom from the application's property list.
bool	SetProp (uint16 atom, HANDLE data) const
	Adds an item to the property list of the specified window.
HANDLE	GetProp (LPCTSTR str) const
	Returns a handle to the property list of the specified window.
HANDLE	GetProp (const tstring &str) const
HANDLE	RemoveProp (LPCTSTR str) const
	Removes the property specified by str, a null-terminated string, from the application's property list.
HANDLE	RemoveProp (const tstring &str) const
bool	SetProp (LPCTSTR str, HANDLE data) const
	Adds an item to the property list of the specified window.
bool	SetProp (const tstring &str, HANDLE data) const
uint32	GetStyle () const
	Gets the style bits of the underlying window or the 'Style' member of the attribute structure associated with this TWindow object.
uint32	SetStyle (uint32 style)
	Sets the style bits of the underlying window or the 'Style' member of the attribute structure associated with this TWindow object.
uint32	GetExStyle () const
	Gets the extra style bits of the window.
uint32	SetExStyle (uint32 style)
	Sets the extra style bits of the window.
bool	ModifyStyle (uint32 offBits, uint32 onBits, uint swpFlags=0)
	Modifies the style bits of the window.
bool	ModifyExStyle (uint32 offBits, uint32 onBits, uint swpFlags=0)
	Modifies the style bits of the window.
bool	MoveWindow (int x, int y, int w, int h, bool repaint=false)
	Repositions the specified window.
bool	MoveWindow (const TRect &rect, bool repaint=false)
	Repositions the window.
virtual bool	ShowWindow (int cmdShow)
	Displays this TWindow in a given state.
void	ShowOwnedPopups (bool show)
	Shows or hides all owned pop-up windows according to the value of show.
bool	IsWindowVisible () const
	Returns true if the window is visible.
bool	IsZoomed () const
	Returns true if window is zoomed or maximized.
bool	IsIconic () const
	Returns true if window is iconic or minimized.
int	GetWindowTextLength () const
	Returns the length, in characters, of the specified window's title.
int	GetWindowText (TCHAR *str, int maxCount) const
	Copies the window's title into a buffer pointed to by string.
tstring	GetWindowText () const
	String-aware overload.
void	SetWindowText (LPCTSTR str)
	Sets the window's text to the given string (by copying).
void	SetWindowText (const tstring &str)
void	SetWindowText (uint resourceStringId)
	Sets the window title to the resource string identified by the given id.
WINDOWPLACEMENT	GetWindowPlacement () const
	Wrapper for Windows API.
void	SetWindowPlacement (const WINDOWPLACEMENT &place)
	Wrapper for Windows API.
virtual void	Invalidate (bool erase=true)
	Invalidates (mark for painting) the entire client area of a window.
virtual void	InvalidateRect (const TRect &rect, bool erase=true)
	Invalidates a specified client area.
void	InvalidateRgn (HRGN hRgn, bool erase=true)
	Invalidates a client area within a region specified by the hRgn parameter when the application receives a WM_PAINT message.
void	Validate ()
	Calls the function ValidateRect to validate (that is, remove from the area to be updated) the entire client area (the area you can use for drawing).
void	ValidateRect (const TRect &rect)
	Validates a portion of the client area indicated by rect.
void	ValidateRgn (HRGN hRgn)
	Validates the client area within a region of the current window.
void	UpdateWindow ()
	Updates the client area of the specified window by immediately sending a WM_PAINT message.
bool	FlashWindow (bool invert)
	Changes the window from active to inactive or vice versa.
bool	GetUpdateRect (TRect &rect, bool erase=true) const
	Retrieves the screen coordinates of the rectangle that encloses the updated region of the specified window.
int	GetUpdateRgn (TRegion &rgn, bool erase=true) const
	Copies a window's update region into a region specified by region.
bool	LockWindowUpdate (bool lock=true)
	Prevents or enables window drawing for one window at a time.
bool	RedrawWindow (TRect *update, HRGN hUpdateRgn, uint redrawFlags=RDW_INVALIDATE|RDW_UPDATENOW|RDW_ERASE)
	Redraws the rectangle specified by update and the region specified by hUpdateRgn.
auto	GetWindowRgn (TRegion &) const -> int
	Obtains a copy of the region of the window within which the system permits drawing.
void	ResetWindowRgn (bool repaint=false)
	Calls SetWindowRgn(nullptr, repaint).
auto	SetWindowRgn (HRGN, bool repaint=false) -> bool
	Sets the area within the window where the system permits drawing.
auto	SetWindowRgn (const TRegion &, bool repaint=false) -> bool=delete
auto	SetWindowRgn (TRegion &&r, bool repaint=false) -> bool
	Overload for TRegion.
int	GetDlgCtrlID () const
	Returns the ID of the control.
HWND	GetDlgItem (int childId) const
	Retrieves the handle of a control specified by childId.
uint	GetDlgItemInt (int childId, bool *translated=0, bool isSigned=true) const
	Translates the text of a specified control into an integer value and returns it.
void	SetDlgItemInt (int childId, uint value, bool isSigned=true) const
	Sets the child window with the Id (childId) in the window to the integer value specified in value.
int	GetDlgItemText (int childId, TCHAR *text, int maxValue) const
	Retrieves the text of a control specified by childId.
tstring	GetDlgItemText (int childId) const
	String-aware overload.
void	SetDlgItemText (int childId, LPCTSTR text) const
	Sets the title or text of a control in a dialog box.
void	SetDlgItemText (int childId, const tstring &text) const
void	SetDlgItemText (int childId, uint resourceStringId) const
uint	IsDlgButtonChecked (int buttonId) const
	Indicates if the child button specified in the integer parameter, buttonId, is checked, or if a button is grayed, checked, or neither.
bool	IsChild (HWND hWnd) const
	Returns true if the window is a child window or a descendant window of this window.
HWND	GetNextDlgGroupItem (HWND hWndCtrl, bool previous=false) const
	Returns either the next or the previous control in the dialog box.
HWND	GetNextDlgTabItem (HWND hWndCtrl, bool previous=false) const
	Returns the handle of the first control that lets the user press the Tab key to move to the next control (that is, the first control with the WS_TABSTOP style associated with it).
void	CheckDlgButton (int buttonId, uint check)
	Places a check mark in (or removes a check mark from) the button specified in buttonId.
void	CheckRadioButton (int firstButtonId, int lastButtonId, int checkButtonId)
	Checks the radio button specified by checkButtonId and removes the check mark from the other radio buttons in the group.
void	SetDlgItemFont (int childId, HFONT f, bool redraw=false) const
HFONT	GetDlgItemFont (int childId) const
TRect	GetDlgItemRect (int childId) const
	Returns the window rectangle of the given child, specified in this window's client coordinates.
HMENU	GetMenu () const
	Returns the handle to the menu of the indicated window.
HMENU	GetSystemMenu (bool revert=false) const
	Returns a handle to the system menu so that an application can access the system menu.
bool	SetMenu (HMENU hMenu)
	Sets the specified window's menu to the menu indicated by hMenu.
bool	HiliteMenuItem (HMENU hMenu, uint idItem, uint hilite)
	Either highlights or removes highlighting from a top-level item in the menu.
void	DrawMenuBar ()
	DrawMenuBar redraws the menu bar.
bool	KillTimer (UINT_PTR timerId)
	Gets rid of the timer and removes any WM_TIMER messages from the message queue.
UINT_PTR	SetTimer (UINT_PTR timerId, uint timeout, TIMERPROC proc=0)
	Creates a timer object associated with this window.
bool	RegisterHotKey (int idHotKey, uint modifiers, uint virtKey)
	Registers a hotkey ID with the current application.
bool	UnregisterHotKey (int idHotKey)
	Unregisters a hotkey ID with the current application.
bool	WinHelp (LPCTSTR helpFile, uint command, ULONG_PTR data) const
	Invokes a specified help system.
bool	WinHelp (const tstring &helpFile, uint command, ULONG_PTR data) const
void	AssignContextMenu (TPopupMenu *menu)
	Associates a pop-up menu with the window so that it can automatically handle a WM_CONTEXTMENU message.
TPopupMenu *	GetContextMenu () const
	Returns the associated popup menu used by the window.
int	MessageBox (LPCTSTR text, LPCTSTR caption=0, uint flags=MB_OK) const
	Creates and displays a message box that contains a message (text), a title (caption), and icons or push buttons (type).
int	MessageBox (const tstring &text, const tstring &caption=tstring(), uint flags=MB_OK) const
int	MessageBox (uint resId, LPCTSTR caption=0, uint flags=MB_OK) const
int	MessageBox (uint resId, const tstring &caption, uint flags=MB_OK) const
auto	MessageBoxIndirect (HINSTANCE resourceModule, TResId text, TResId caption, uint flags, TResId icon, DWORD_PTR contextHelpId, MSGBOXCALLBACK, DWORD languageId) const -> int
	Displays a standard message box.
auto	MessageBoxIndirect (TResId icon, const tstring &text, const tstring &caption, uint flags=MB_OK) const -> int
	Displays a standard message box using the given icon.
auto	FormatMessageBox (const tstring &formatStr, const tstring &caption, uint flags,...) const -> int
auto	FormatMessageBox (const tstring &, std::nullptr_t, uint,...) const -> int=delete
HTASK	GetWindowTask () const
	Returns a handle to the task that created the specified window.
void	DragAcceptFiles (bool accept)
	If a window can process dropped files, DragAcceptFiles sets accept to true.
TCurrentEvent &	GetCurrentEvent ()
	Returns the current event to be processed in the message queue.
void	SethAccel (HACCEL)
auto	GetChildren ()
	Returns a TWindow::TChildrenRange that can be iterated by standard means.
auto	GetChildren () const
	Const overload of TWindow::GetChildren.
TWindow *	Next ()
	Returns a pointer to the next sibling window in the window's sibling list.
auto	Next () const -> const TWindow *
TWindow *	Previous ()
	Returns a pointer to the TWindow's previous sibling (the window previous to the TWindow in its parent's child window list)
auto	Previous () const -> const TWindow *
TWindow *	GetFirstChild ()
	Returns a pointer to the first child window, which is the first window created in the interface object's child list.
auto	GetFirstChild () const -> const TWindow *
TWindow *	GetLastChild ()
	Returns a pointer to the last child window in the interface object's child list.
auto	GetLastChild () const -> const TWindow *
uint	NumChildren () const
	Returns the number of child windows of the window.
bool	GetScrollInfo (int bar, SCROLLINFO *scrollInfo) const
	Retrieves the properties of the given scroll bar.
SCROLLINFO	GetScrollInfo (int bar, uint mask=SIF_ALL) const
	Function-style overload Returns selected properties of the given scroll bar.
int	SetScrollInfo (int bar, SCROLLINFO *scrollInfo, bool redraw=true)
	Sets the properties of the given scroll bar.
int	GetScrollPos (int bar) const
	Returns the thumb position in the scroll bar.
int	SetScrollPos (int bar, int pos, bool redraw=true)
	Sets the thumb position in the scroll bar.
int	GetScrollTrackPos (int bar) const
	Returns the thumb track position in the scroll bar.
void	GetScrollRange (int bar, int &minPos, int &maxPos) const
	Returns the minimum and maximum positions in the scroll bar.
TScrollRange	GetScrollRange (int bar) const
	Function-style overload.
void	SetScrollRange (int bar, int minPos, int maxPos, bool redraw=true)
	Sets the thumb position in the scroll bar.
void	SetScrollRange (int bar, const TScrollRange &, bool redraw=true)
	Overload taking the range as a pair.
int	GetScrollPage (int bar) const
	Returns the page property (SCROLLINFO::nPage) of the given scroll bar.
void	SetScrollPage (int bar, int page, bool redraw=true)
	Sets the page property (SCROLLINFO::nPage) of the given scroll bar.
bool	EnableScrollBar (uint sbFlags=SB_BOTH, uint arrowFlags=ESB_ENABLE_BOTH)
	Disables or enables one or both of the scroll bar arrows on the scroll bars associated with this window.
void	ShowScrollBar (int bar, bool show=true)
	Displays or hides the scroll bar.
void	ScrollWindow (int dx, int dy, const TRect *scroll=nullptr, const TRect *clip=nullptr)
	Scrolls a window in the vertical (dx) and horizontal (dy) directions.
void	ScrollWindowEx (int dx, int dy, const TRect *scroll=0, const TRect *clip=0, HRGN hUpdateRgn=nullptr, TRect *update=0, uint flags=0)
	Scrolls a window in the vertical (dx) and horizontal (dy) directions.
void	ShutDownWindow (int retVal=0)
	This inline version of ShutDownWindow calls the static version of ShutDownWindow.
TResult	SendMessage (TMsgId, TParam1=0, TParam2=0) const
	Sends a message (msg) to a specified window or windows.
TResult	SendDlgItemMessage (int childId, TMsgId, TParam1=0, TParam2=0)
	Sends a message (msg) to the control specified in childId.
bool	PostMessage (TMsgId, TParam1=0, TParam2=0)
	Posts a message (msg) to the window in the application's message queue.
HWND	SetCapture ()
	Sets the mouse capture to the current window.
HWND	SetFocus ()
	Sets the keyboard focus to current window and activates the window that receives the focus by sending a WM_SETFOCUS message to the window.
bool	IsWindowEnabled () const
	Returns true if the window is enabled.
virtual bool	EnableWindow (bool enable)
	Allows the given window to receive input from the keyboard of mouse.
void	SetRedraw (bool redraw)
	Sends a WM_SETREDRAW message to a window so that changes can be redrawn (redraw = true) or to prevent changes from being redrawn (redraw = false).
bool	TrackMouseEvent (uint flags=TME_HOVER|TME_LEAVE, int hoverTime=HOVER_DEFAULT)
	Posts messages when the mouse pointer leaves a window or hovers over a window for a specified amount of time.
bool	CancelMouseEvent (uint flags=TME_HOVER|TME_LEAVE)
	Encapsulates a call to TrackMouseEvent, passing the TME_CANCEL flag.
TRACKMOUSEEVENT	QueryMouseEventTracking () const
	Returns the current state of mouse event tracking initiated by TrackMouseEvent.
void	ClientToScreen (TPoint &point) const
	Converts the client coordinates specified in point to screen coordinates for the new window.
TPoint	MapClientToScreen (const TPoint &p) const
	Function-style version of ClientToScreen.
void	MapClientToScreen (TPoint *p, int count) const
	Maps the given points, specified in client coordinates in this window, to screen coordinates.
template<size_t Count>
void	MapClientToScreen (TPoint(&p)[Count]) const
	Overload for array See MapClientToScreen(TPoint*, int).
TRect	MapClientToScreen (const TRect &r) const
	Functional-style overload for TRect; converts the given rectangle coordinates and returns the result.
void	ScreenToClient (TPoint &point) const
	Uses the screen coordinates specified in point to calculate the client window's coordinates and then places the new coordinates into point.
TPoint	MapScreenToClient (const TPoint &p) const
	Functional-style version of ScreenToClient.
void	MapScreenToClient (TPoint *p, int count) const
	Maps the given points, specified in screen coordinates, to client coordinates in this window.
template<size_t Count>
void	MapScreenToClient (TPoint(&p)[Count]) const
	Overload for array See MapScreenToClient(TPoint*, int).
TRect	MapScreenToClient (const TRect &r) const
	Functional-style overload for TRect; converts the given rectangle coordinates and returns the result.
void	MapWindowPoints (HWND hWndTo, TPoint *pts, int count) const
	Maps a set of points in one window to a relative set of points in another window.
void	MapWindowPoints (const TWindow &wndTo, TPoint *p, int n) const
	Overload for TWindow See MapWindowPoints(HWND, TPoint*, int).
template<size_t Count>
void	MapWindowPoints (HWND hWndTo, TPoint(&p)[Count]) const
	Overload for array See MapWindowPoints(HWND, TPoint*, int).
template<size_t Count>
void	MapWindowPoints (const TWindow &wndTo, TPoint(&p)[Count]) const
	Overload for TWindow and array See MapWindowPoints(HWND, TPoint*, int).
TPoint	MapWindowPoints (HWND hWndTo, const TPoint &p) const
	Functional-style overload for TPoint; converts the given point coordinates and returns the result.
TPoint	MapWindowPoints (const TWindow &wndTo, const TPoint &p) const
	Overload for TWindow and TPoint See MapWindowPoints(HWND, const TPoint&).
TRect	MapWindowPoints (HWND hWndTo, const TRect &r) const
	Functional-style overload for TRect; converts the given rectangle coordinates and returns the result.
TRect	MapWindowPoints (const TWindow &wndTo, const TRect &r) const
	Overload for TWindow and TRect See MapWindowPoints(HWND, const TRect&).
TRect	MapWindowRect (HWND hWndTo) const
	Maps the window's rectangle (GetWindowRect) to client coordinates in the given destination window.
TRect	MapWindowRect (const TWindow &wndTo) const
	Overload for TWindow See MapWindowRect(HWND).
TRect	MapClientRect (HWND hWndTo) const
	Maps the window's client rectangle (GetClientRect) to client coordinates in the given destination window.
TRect	MapClientRect (const TWindow &wndTo) const
	Overload for TWindow See MapClientRect(HWND).
void	GetClientRect (TRect &rect) const
	Gets the coordinates of the window's client area and then copies them into the object referred to by TRect.
TRect	GetClientRect () const
	Gets the coordinates of the window's client area (the area in a window you can use for drawing).
HWND	ChildWindowFromPoint (const TPoint &point) const
	Determines which of the child windows contains the point specified in TPoint.
void	GetWindowRect (TRect &rect) const
	Gets the screen coordinates of the window's rectangle and copies them into rect.
TRect	GetWindowRect () const
	Gets the screen coordinates of the window's rectangle.
TRect	GetChildRect (HWND hWnd) const
	Returns the window rectangle of the given window, specified in this window's client coordinates.
TRect	GetChildRect (const TWindow &wnd) const
	Overload for TWindow See GetChildRect(HWND).
void	BringWindowToTop ()
	Brings a pop-up or child window to the top of the stack of overlapping windows and activates it.
HWND	SetActiveWindow ()
	Activates a top-level window.
HWND	GetLastActivePopup () const
	Returns the last active pop-up window in the list.
HWND	GetNextWindow (uint dirFlag) const
	Finds the handle associated with either the next or previous window in the window manager's list.
HWND	GetTopWindow () const
	Returns a handle to the top window currently owned by this parent window.
HWND	GetWindow (uint cmd) const
	Returns the handle of the window that has the indicated relationship to this window.
bool	SetWindowPos (HWND hWndInsertAfter, const TRect &rect, uint flags)
	Changes the size of the window pointed to by rect.
bool	SetWindowPos (HWND hWndInsertAfter, int x, int y, int w, int h, uint flags)
	Set the new window position.
void	CreateCaret (HBITMAP hBitmap)
	Creates a new caret for the system.
void	CreateCaret (bool isGray, int width, int height)
	Create a new caret for the system with the specified shape, bitmap shade, width, and height.
void	HideCaret ()
	Removes the caret from the specified display screen.
void	ShowCaret ()
	Displays the caret in the specified shape in the active window at the current position.
void	SetWindowFont (HFONT font, bool redraw=true)
	Sets the font that a control uses to draw text.
void	SetWindowFont (const TFont &font, bool redraw=true)
	Sets the font that a control uses to draw text.
HFONT	GetWindowFont ()
	Gets the font the control uses to draw text.
Public Member Functions inherited from owl::TEventHandler
virtual bool	Find (TEventInfo &info, TEqualOperator op=0)
	Searches the list of response table entries looking for a match.
TResult	Dispatch (TEventInfo &info, TParam1, TParam2=0)
	Takes the message data from TEventInfo's Msg data member and dispatches it to the correct event-handling function.
TResult	DispatchMsg (TMsgId, uint id, TParam1, TParam2)
	Search for the event given the message and it and dispatch to the event handler if found.
Public Member Functions inherited from owl::TStreamableBase
virtual	~TStreamableBase ()

Protected Member Functions
auto	GetWindowClassName () -> TWindowClassName override
	Returns the windows system class name that this slider is basing itself on.
void	SetupWindow () override
	Calls TScrollBar::SetupWindow and SetupThumbRgn to set up the slider window.
int	SnapPos (int pos)
	Constrains pos so it is in the range from Min to Max and (if snapping is enabled) performs snapping by rounding pos to the nearest TicGap.
Event handlers
void	EvHScroll (uint scrollCode, uint thumbPos, HWND hWndCtl)
	Overrides the handling in TScrollBar.
void	EvVScroll (uint scrollCode, uint thumbPos, HWND hWndCtl)
	Overrides the handling in TScrollBar.
Protected Member Functions inherited from owl::TScrollBar
auto	Transfer (void *buffer, TTransferDirection) -> uint override
	Transfers scroll-bar data to or from the transfer buffer pointed to by buffer, which is expected to point to a TScrollBarData structure.
Protected Member Functions inherited from owl::TControl
	TControl (HWND hWnd, TModule *module=nullptr)
	Constructor to alias non-OWL control.
virtual int	CompareItem (COMPAREITEMSTRUCT &compareInfo)
	Function called when a WM_COMPAREITEM is sent to parent on our behalf.
virtual void	DeleteItem (DELETEITEMSTRUCT &deleteInfo)
	Function called when a WM_DELETEITEM is sent to parent on our behalf.
virtual void	MeasureItem (MEASUREITEMSTRUCT &measureInfo)
	Function called when a WM_MEASUREITEM is sent to parent on our behalf.
virtual void	DrawItem (DRAWITEMSTRUCT &drawInfo)
	Function called when a WM_DRAWITEM is sent to parent on our behalf.
virtual void	ODADrawEntire (DRAWITEMSTRUCT &drawInfo)
	Responds to a notification message sent to a drawable control when the control needs to be drawn.
virtual void	ODAFocus (DRAWITEMSTRUCT &drawInfo)
	Responds to a notification sent to a drawable control when the focus has shifted to or from the control.
virtual void	ODASelect (DRAWITEMSTRUCT &drawInfo)
	Responds to a notification sent to a drawable control when the selection state of the control changes.
void	EvPaint ()
	Intercept WM_PAINT to redirect from TWindow to the underlying control if this Owl object is just a wrapper for a predefined class.
auto	EvEraseBkgnd (HDC) -> bool
	Provides special handling for predefined controls.
int	EvCompareItem (uint ctrlId, const COMPAREITEMSTRUCT &comp)
	Handles WM_COMPAREITEM message (for owner draw controls) by calling the corresponding virtual function.
void	EvDeleteItem (uint ctrlId, const DELETEITEMSTRUCT &del)
	Handles WM_DELETEITEM message (for owner draw controls) by calling the corresponding virtual function.
void	EvDrawItem (uint ctrlId, const DRAWITEMSTRUCT &draw)
	Handles WM_DRAWITEM message (for owner draw controls) by calling the corresponding virtual function.
void	EvMeasureItem (uint ctrlId, MEASUREITEMSTRUCT &meas)
	Handles WM_MEASUREITEM message (for owner draw controls) by calling the corresponding virtual function.
Protected Member Functions inherited from owl::TWindow
	TWindow ()
	Protected constructor for use by immediate virtually derived classes.
void	Init (TWindow *parent, LPCTSTR title, TModule *module)
	Normal initialization of a default constructed TWindow.
void	Init (TWindow *parent, const tstring &title, TModule *module)
void	Init (HWND hWnd, TModule *module)
	Wrapper initialization of a default constructed TWindow.
virtual THandle	PerformCreate ()
	Called from Create to perform the final step in creating an Windows interface element to be associated with a TWindow.
void	SetHandle (THandle)
	Sets the window handle in a derived class.
void	GetHWndState (bool forceStyleSync=false)
	Copies the style, coordinate, and the resource id (but not the title) from the existing HWnd into the TWindow members.
void	GetWindowTextTitle ()
	Updates the TWindow internal caption (Title) from the current window's caption.
virtual void	GetWindowClass (WNDCLASS &wndClass)
	Redefined by derived classes, GetWindowClass fills the supplied MS-Windows registration class structure with registration attributes, thus, allowing instances of TWindow to be registered.
void	PerformSetupAndTransfer ()
	Ensures that the window is fully set up; then transfers data into the window.
virtual void	CleanupWindow ()
	Always called immediately before the HWindow becomes invalid, CleanupWindow gives derived classes an opportunity to clean up HWND related resources.
void	DispatchScroll (uint scrollCode, uint thumbPos, HWND hWndCtrl)
	Called by EvHScroll and EvVScroll to dispatch messages from scroll bars.
void	LoadAcceleratorTable ()
	Loads a handle to the window's accelerator table specified in the TWindowAttr structure (Attr.AccelTable).
virtual void	RemoveChild (TWindow *child)
	Removes a child window.
TWindow *	GetWindowPtr (HWND hWnd) const
	Calls TApplication:GetWindowPtr on the application associated with this window.
void	EvClose ()
	The default response to a WM_CLOSE message is to call CloseWindow() and then have the window deleted if the Handle was really destroyed.
bool	EvCreate (CREATESTRUCT &)
	Response method for an incoming WM_CREATE message.
void	EvDestroy ()
	Responds to an incoming WM_DESTROY message.
int	EvCompareItem (uint ctrlId, const COMPAREITEMSTRUCT &compareInfo)
	Handles WM_COMPAREITEM message (for owner draw controls) by forwarding message to control itself.
void	EvDeleteItem (uint ctrlId, const DELETEITEMSTRUCT &deleteInfo)
	Handles WM_DELETEITEM message (for owner draw controls) by forwarding message to control itself.
void	EvDrawItem (uint ctrlId, const DRAWITEMSTRUCT &drawInfo)
void	EvMeasureItem (uint ctrlId, MEASUREITEMSTRUCT &measureInfo)
	Handles WM_MEASUREITEM message (for owner draw controls & menus) by forwarding message to control itself.
void	EvHScroll (uint scrollCode, uint thumbPos, HWND hWndCtl)
	Response method for an incoming WM_HSCROLL message.
void	EvVScroll (uint scrollCode, uint thumbPos, HWND hWndCtl)
	Response method for an incoming WM_VSCROLL message.
void	EvMove (const TPoint &clientOrigin)
	Save the normal position of the window.
void	EvNCDestroy ()
	Responds to an incoming WM_NCDESTROY message, the last message sent to an MS-Windows interface element.
bool	EvQueryEndSession (uint flags)
	Respond to Windows attempt to close down.
void	EvSize (uint sizeType, const TSize &size)
	Response method for an incoming WM_SIZE message.
void	EvLButtonDown (uint modKeys, const TPoint &point)
	Response method for an incoming WM_LBUTTONDOWN message.
bool	EvEraseBkgnd (HDC)
	Handler for WM_ERASEBKGND.
void	EvPaint ()
	Response method for an incoming WM_PAINT message.
void	EvSysColorChange ()
	Respond to WM_SYSCOLORCHANGE by broadcasting it to all children.
void	EvChildInvalid (HWND hWnd)
	Handle message posted to us by a control needing assistance in dealing with invalid inputs.
void	EvCompacting (uint compactRatio)
	The default message handler for WM_COMPACTING.
void	EvDevModeChange (LPCTSTR devName)
	The default message handler for WM_DEVMODECHANGE.
void	EvEnable (bool enabled)
	The default message handler for WM_ENABLE.
void	EvEndSession (bool endSession, uint flags)
	Provides default handling for WM_ENDSESSION.
void	EvFontChange ()
	The default message handler for WM_FONTCHANGE.
void	EvSysCommand (uint cmdType, const TPoint &point)
	Responds to a user-selected command from the System menu or when the user selects the maximize or minimize box.
void	EvTimeChange ()
	The default message handler for WM_TIMECHANGE.
void	EvTimer (uint timerId)
	The default message handler for WM_TIMER.
void	EvSettingChange (uint flags, LPCTSTR section)
void	EvActivate (uint active, bool minimized, HWND hWndOther)
	Default message handler for WM_ACTIVATE.
void	EvActivateApp (bool active, DWORD threadId)
	The default message handler for WM_ACTIVATEAPP.
void	EvCancelMode ()
	The default message handler for WM_CANCELMODE.
void	EvGetMinMaxInfo (MINMAXINFO &minmaxinfo)
	The default message handler for WM_GETMINMAXINFO.
int	EvGetText (int bufSize, TCHAR *buf)
	The default message handler for WM_GETTEXT.
int	EvGetTextLength ()
	The default message handler for WM_GETTEXTLENGTH.
void	EvKillFocus (HWND hWndGetFocus)
	Handle WM_KILLFOCUS so that we can have a parent window hold onto our Handle and possibly restore focus later.
uint	EvMouseActivate (HWND hTopLevel, uint hitCode, TMsgId)
	The default message handler for WM_MOUSEACTIVATE.
void	EvHotKey (int idHotKey, uint modifiers, uint vk)
bool	EvCopyData (HWND hwnd, const COPYDATASTRUCT &)
void	EvNextDlgCtl (TParam1 handleOrDirectionFlag, bool isHandle)
void	EvParentNotify (const TParentNotify &)
	The default message handler for WM_PARENTNOTIFY.
HICON	EvQueryDragIcon ()
	The default message handler for WM_QUERYDRAGICON.
bool	EvQueryOpen ()
	The default message handler for WM_QUERYOPEN.
void	EvQueueSync ()
	The default message handler for WM_QUEUESYNC.
bool	EvSetCursor (HWND hWndCursor, uint codeHitTest, TMsgId mouseMsg)
	Response method for an incoming WM_SETCURSOR message.
void	EvSetFocus (HWND hWndLostFocus)
	The default message handler for WM_SETFOCUS.
HFONT	EvGetFont ()
	The default message handler for WM_GETFONT.
void	EvSetFont (HFONT hFont, bool redraw)
	The default message handler for WM_SETFONT.
void	EvSetRedraw (bool redraw)
	The default message handler for WM_SETREDRAW.
void	EvSetText (LPCTSTR text)
	The default message handler for WM_SETTEXT.
void	EvShowWindow (bool show, uint status)
	The default message handler for WM_SHOWWINDOW.
void	EvWindowPosChanged (const WINDOWPOS &windowPos)
	The default message handler for WM_WINDOWPOSCHANGED.
bool	EvWindowPosChanging (WINDOWPOS &)
	The default message handler for WM_WINDOWPOSCHANGING.
HBRUSH	EvCtlColor (HDC hDC, HWND hWndChild, uint ctlType)
	Handler for control color messages (WM_CTLCOLOR family).
void	EvChar (uint key, uint repeatCount, uint flags)
	The default message handler for WM_CHAR.
void	EvDeadChar (uint deadKey, uint repeatCount, uint flags)
	The default message handler for WM_DEADCHAR.
void	EvKeyDown (uint key, uint repeatCount, uint flags)
	The default message handler for WM_KEYDOWN.
void	EvKeyUp (uint key, uint repeatCount, uint flags)
	The default message handler for WM_KEYUP.
void	EvSysChar (uint key, uint repeatCount, uint flags)
	The default message handler for WM_SYSCHAR.
void	EvSysDeadChar (uint key, uint repeatCount, uint flags)
	The default message handler for WM_SYSDEADCHAR.
void	EvSysKeyDown (uint key, uint repeatCount, uint flags)
	The default message handler for WM_SYSKEYDOWN.
void	EvSysKeyUp (uint key, uint repeatCount, uint flags)
	The default message handler for WM_SYSKEYUP.
void	EvLButtonDblClk (uint modKeys, const TPoint &point)
	The default message handler for WM_LBUTTONDBLCLK.
void	EvLButtonUp (uint modKeys, const TPoint &point)
	The default message handler for WM_LBUTTONUP.
void	EvMButtonDblClk (uint modKeys, const TPoint &point)
	The default message handler for WM_MBUTTONDBLCLK.
void	EvMButtonDown (uint modKeys, const TPoint &point)
	The default message handler for WM_MBUTTONDOWN.
void	EvMButtonUp (uint modKeys, const TPoint &point)
	The default message handler for WM_MBUTTONUP.
void	EvMouseMove (uint modKeys, const TPoint &point)
	The default message handler for WM_MOUSEMOVE.
void	EvMouseHWheel (uint modKeys, int zDelta, const TPoint &point)
	Event handler for WM_MOUSEHWHEEL.
void	EvMouseWheel (uint modKeys, int zDelta, const TPoint &point)
	Event handler for WM_MOUSEWHEEL.
void	EvRButtonDblClk (uint modKeys, const TPoint &point)
	The default message handler for WM_RBUTTONDBLCLK.
void	EvRButtonDown (uint modKeys, const TPoint &point)
	The default message handler for WM_RBUTTONDOWN.
void	EvRButtonUp (uint modKeys, const TPoint &point)
	The default message handler for WM_RBUTTONUP.
void	EvInitMenu (HMENU hMenu)
	The default message handler for WM_INITMENU.
void	EvInitMenuPopup (HMENU hPopupMenu, uint index, bool isSysMenu)
	Handle WM_INITMENUPOPUP while embeded to generate command enable messages for our server menu items.
int32	EvMenuChar (uint nChar, uint menuType, HMENU hMenu)
	The default message handler for WM_MENUCHAR.
void	EvMenuSelect (uint menuItemId, uint flags, HMENU hMenu)
	The default message handler for WM_MENUSELECT.
void	EvContextMenu (HWND childHwnd, int x, int y)
	The default message handler for WM_CONTEXTMENU.
uint	EvGetDlgCode (const MSG *msg)
	The default message handler for WM_GETDLGCODE.
void	EvEnterIdle (uint source, HWND hWndDlg)
	The default message handler for WM_ENTERIDLE.
void	EvSpoolerStatus (uint jobStatus, uint jobsLeft)
	The default message handler for WM_SPOOLERSTATUS.
void	EvAskCBFormatName (uint bufLen, TCHAR *buffer)
	The default message handler for WM_ASKCBFORMATNAME.
void	EvChangeCBChain (HWND hWndRemoved, HWND hWndNext)
	The default message handler for WM_CHANGECBCHAIN.
void	EvDrawClipboard ()
	The default message handler for WM_DRAWCLIPBOARD.
void	EvDestroyClipboard ()
	The default message handler for WM_DESTROYCLIPBOARD.
void	EvHScrollClipboard (HWND hCBViewer, uint scrollCode, uint pos)
	The default message handler for WM_HSCROLLCLIPBOARD.
void	EvPaintClipboard (HWND hWnd, const PAINTSTRUCT &)
	The default message handler for WM_PAINTCLIPBOARD.
void	EvRenderAllFormats ()
	The default message handler for WM_RENDERALLFORMATS.
void	EvRenderFormat (uint dataFormat)
	The default message handler for WM_RENDERFORMAT.
void	EvSizeClipboard (HWND hWndViewer, const TRect &)
	The default message handler for WM_SIZECLIPBOARD.
void	EvVScrollClipboard (HWND hCBViewer, uint scrollCode, uint pos)
	The default message handler for WM_VSCROLLCLIPBOARD.
void	EvPaletteChanged (HWND hWndPalChg)
	The default message handler for WM_PALETTECHANGED.
void	EvPaletteIsChanging (HWND hWndPalChg)
	The default message handler for WM_PALETTEISCHANGING.
bool	EvQueryNewPalette ()
	The default message handler for WM_QUERYNEWPALETTE.
void	EvDropFiles (TDropInfo dropInfo)
	The default message handler for WM_DROPFILES.
int	EvCharToItem (uint ch, HWND hWndListBox, int caretIndex)
	The default message handler for WM_CHARTOITEM.
int	EvVKeyToItem (uint key, HWND hWndListBox, int caretIndex)
	The default message handler for WM_VKEYTOITEM.
bool	EvNCActivate (bool active)
	The default message handler for WM_NCACTIVATE.
uint	EvNCCalcSize (bool calcValidRects, NCCALCSIZE_PARAMS &)
	The default message handler for WM_NCCALCSIZE.
bool	EvNCCreate (CREATESTRUCT &)
	The default message handler for WM_NCCREATE.
uint	EvNCHitTest (const TPoint &)
	The default message handler for WM_NCHITTEST.
void	EvNCLButtonDblClk (uint codeHitTest, const TPoint &)
	The default message handler for WM_NCLBUTTONDBLCLK.
void	EvNCLButtonDown (uint codeHitTest, const TPoint &)
	The default message handler for WM_NCLBUTTONDOWN.
void	EvNCLButtonUp (uint codeHitTest, const TPoint &)
	The default message handler for WM_NCLBUTTONUP.
void	EvNCMButtonDblClk (uint codeHitTest, const TPoint &)
	The default message handler for WM_NCMBUTTONDBLCLK.
void	EvNCMButtonDown (uint codeHitTest, const TPoint &)
	The default message handler for WM_NCMBUTTONDOWN.
void	EvNCMButtonUp (uint codeHitTest, const TPoint &)
	The default message handler for WM_NCMBUTTONUP.
void	EvNCMouseMove (uint codeHitTest, const TPoint &)
	The default message handler for WM_NCMOUSEMOVE.
void	EvNCPaint (HRGN)
	The default message handler for WM_NCPAINT.
void	EvNCRButtonDblClk (uint codeHitTest, const TPoint &)
	The default message handler for WM_NCRBUTTONDBLCLK.
void	EvNCRButtonDown (uint codeHitTest, const TPoint &)
	The default message handler for WM_NCRBUTTONDOWN.
void	EvNCRButtonUp (uint codeHitTest, const TPoint &)
	The default message handler for WM_NCRBUTTONUP.
HICON	EvGetIcon (bool isBigIcon)
HICON	EvSetIcon (bool isBigIcon, HICON)
Protected Member Functions inherited from owl::TEventHandler
bool	SearchEntries (const TGenericTableEntry *entries, TEventInfo &info, TEqualOperator op)
	Low-level response table search function.

Additional Inherited Members
Public Types inherited from owl::TWindow
typedef HWND	THandle
	TWindow encapsulates an HWND.
using	TChildrenIterator = TChildrenIteratorTemplate<TWindow>
using	TConstChildrenIterator = TChildrenIteratorTemplate<const TWindow>
using	TChildrenRange = TChildrenRangeTemplate<TWindow>
using	TConstChildrenRange = TChildrenRangeTemplate<const TWindow>
typedef std::pair< int, int >	TScrollRange
Public Types inherited from owl::TEventHandler
typedef bool(*	TEqualOperator) (const TGenericTableEntry &, const TEventInfo &)
Static Public Member Functions inherited from owl::TWindow
static void	ShutDownWindow (TWindow *win, int retVal=0)
	This version of ShutDownWindow unconditionally shuts down a given window, calls Destroy on the interface element, and then deletes the interface object.
static HWND	GetCapture ()
	Returns the handle of the window that has captured the mouse.
static void	ReleaseCapture ()
	Releases the mouse capture from this window.
static HWND	GetFocus ()
	Gets a handle to the window that has the focus.
static HWND	WindowFromPoint (const TPoint &point)
	Returns the handle of the window in which the specified point (point) lies.
static void	AdjustWindowRect (TRect &rect, uint32 style, bool menu)
	Calculates the size of the window rectangle according to the indicated client-rectangle size.
static void	AdjustWindowRectEx (TRect &rect, uint32 style, bool menu, uint32 exStyle)
	Calculates the size of a window rectangle that has an extended style.
static HWND	GetActiveWindow ()
	Retrieves the handle of the active window.
static HWND	GetDesktopWindow ()
	Returns a handle to the desktop window.
static uint	GetCaretBlinkTime ()
	Retrieves the caret blink rate in milliseconds.
static void	GetCaretPos (TPoint &point)
	Gets the position of the caret in the coordinates of the client window.
static TPoint	GetCaretPos ()
static void	SetCaretBlinkTime (uint16 milliSecs)
	Sets the caret blink rate in milliseconds.
static void	SetCaretPos (int x, int y)
	Sets the position of the caret in the coordinates of the client window.
static void	SetCaretPos (const TPoint &pos)
	Sets the position of the caret in the coordinates of the client window.
static void	DestroyCaret ()
	DestroyCaret first checks the ownership of the caret.
static void	GetCursorPos (TPoint &pos)
	Retrieves the cursor's current position (in window screen coordinates) and copies the values into the structure pointed to by pos.
static TPoint	GetCursorPos ()
static TPoint	GetMessagePos ()
Static Protected Member Functions inherited from owl::TWindow
static LRESULT CALLBACK	InitWndProc (HWND, UINT msg, WPARAM, LPARAM)
	Callback process for hooking TWindow to native window.

Detailed Description

An abstract base class derived from TScrollBar, TSlider defines the basic behavior of sliders (controls that are used for providing nonscrolling, position information).

Like scroll bars, sliders have minimum and maximum positions as well as line and page magnitude. Sliders can be moved using either the mouse or the keyboard. If you use a mouse to move the slider, you can drag the thumb position, click on the slot on either side of the thumb position to move the thumb by a specified amount (PageMagnitude), or click on the ruler to position the thumb at a specific spot on the slider. The keyboard's Home and End keys move the thumb position to the minimum (Min) and maximum (Max) positions on the slider.

You can use TSlider 's member functions to cause the thumb positions to automatically align with the nearest tick positions. (This is referred to as snapping.) You can also specify the tick gaps (the space between the lines that separate the major divisions of the X- or Y-axis).

The sample program SLIDER.CPP on BC5.0x distribution disk displays a thermostat that uses sliders:

Definition at line 53 of file slider.h.

Constructor & Destructor Documentation

TSlider() [1/3]

owl::TSlider::TSlider	(	TWindow *	parent,
		int	id,
		int	x,
		int	y,
		int	w,
		int	h,
		TResId	thumbResId,
		TModule *	module = 0 )

Constructs a slider object setting Pos and ThumbRgn to 0, TicGap to Range divided by 10, SlotThick to 17, Snap to true, and Sliding to false.

Sets Attr.W and Attr.H to the values in X and Y. ThumbResId is set to thumbResId.

Definition at line 28 of file slider.cpp.

References owl::InitializeCommonControls(), and SetRange().

TSlider() [2/3]

owl::TSlider::TSlider	(	TWindow *	parent,
		int	resId,
		TResId	thumbResId,
		TModule *	module = 0 )

Constructor for a TSlider object created from resource.

Definition at line 51 of file slider.cpp.

References owl::InitializeCommonControls(), and SetRange().

TSlider() [3/3]

owl::TSlider::TSlider	(	THandle	hWnd,
		TModule *	module = 0 )

Constructs a slider object to encapsulate (alias) an existing control.

Definition at line 74 of file slider.cpp.

References GetWindowClassName(), owl::InitializeCommonControls(), owl::TWindow::SendMessage(), and SetRange().

~TSlider()

owl::TSlider::~TSlider ( )

override

Destructs a TSlider object and deletes ThumbRgn.

Definition at line 101 of file slider.cpp.

Member Function Documentation

EvHScroll()

void owl::TSlider::EvHScroll ( uint scrollCode, uint thumbPos, HWND hWndCtl )

protected

Overrides the handling in TScrollBar.

In particular, TSlider does not support the code in TScrollBar to retrieve 32-bit positions, so we here simply resort to the 16-bit position value passed with the TB_THUMBPOSITION and TB_THUMBTRACK notifications.

Definition at line 308 of file slider.cpp.

References owl::TScrollBar::EvHScroll(), owl::TWindow::GetHandle(), PRECONDITION, owl::TScrollBar::SBThumbPosition(), and owl::TScrollBar::SBThumbTrack().

EvVScroll()

void owl::TSlider::EvVScroll ( uint scrollCode, uint thumbPos, HWND hWndCtl )

protected

Overrides the handling in TScrollBar.

See EvHScroll for details.

Definition at line 331 of file slider.cpp.

References EvHScroll().

GetBuddy()

HWND owl::TSlider::GetBuddy ( bool loc = true ) const

inline

Definition at line 210 of file slider.h.

References CONST_CAST, and owl::TWindow::SendMessage().

GetPosition()

int owl::TSlider::GetPosition ( ) const -> int

inlineoverridevirtual

Returns the slider's current thumb position.

Overloads TScrollBar's virtual function.

Reimplemented from owl::TScrollBar.

Definition at line 201 of file slider.h.

GetRange()

void owl::TSlider::GetRange ( int & minValue, int & maxValue ) const

inlineoverridevirtual

Returns the end values of the present range of slider thumb positions in minValue and maxValue.

Overloads TScrollBar's virtual function.

Reimplemented from owl::TScrollBar.

Definition at line 193 of file slider.h.

GetSel()

void owl::TSlider::GetSel	(	int &	start,
		int &	end )

Definition at line 240 of file slider.cpp.

References owl::TWindow::GetHandle(), and owl::TWindow::SendMessage().

GetTooltips()

HWND owl::TSlider::GetTooltips ( ) const

inline

Definition at line 226 of file slider.h.

References CONST_CAST, and owl::TWindow::SendMessage().

GetWindowClassName()

auto owl::TSlider::GetWindowClassName ( ) -> TWindowClassName

overrideprotectedvirtual

Returns the windows system class name that this slider is basing itself on.

Reimplemented from owl::TScrollBar.

Definition at line 258 of file slider.cpp.

SetBuddy()

void owl::TSlider::SetBuddy ( HWND buddy, bool loc = true )

inline

Definition at line 218 of file slider.h.

References owl::TWindow::SendMessage().

SetPosition() [1/2]

void owl::TSlider::SetPosition

(

int

pos

)

Sets the position of the thumb and always redraws.

Moves the thumb to the position specified in thumbPos. If thumbPos is outside the present range of the slider, the thumb is moved to the closest position within the specified range. Overloads TScrollBar's virtual function.

Always redraws.

Definition at line 140 of file slider.cpp.

References SetPosition().

SetPosition() [2/2]

void owl::TSlider::SetPosition ( int pos, bool redraw )

overridevirtual

Sets the position of the thumb and always redraws.

Moves the thumb to the position specified in thumbPos. If thumbPos is outside the present range of the slider, the thumb is moved to the closest position within the specified range. Overloads TScrollBar's virtual function.

Redraw is optional.

Reimplemented from owl::TScrollBar.

Definition at line 154 of file slider.cpp.

References owl::TWindow::GetHandle(), owl::TWindow::SendMessage(), and SnapPos().

SetRange()

void owl::TSlider::SetRange ( int minValue, int maxValue, bool redraw = true )

overridevirtual

Checks and sets the slider range.

Sets the slider to the range between minValue and maxValue. Overloads TScrollBar's virtual function.

Reimplemented from owl::TScrollBar.

Definition at line 113 of file slider.cpp.

References owl::TWindow::GetHandle(), owl::MkParam2(), and owl::TWindow::SendMessage().

SetRuler() [1/2]

void owl::TSlider::SetRuler	(	int	ticGap,
		bool	snap = false )

Sets the slider's ruler.

Each slider has a built-in ruler that is drawn with the slider. The ruler, which can be blank or have tick marks on it, can be created so that it forces the thumb to snap to the tick positions automatically.

Note

Snapping is not supported in native currently

Definition at line 175 of file slider.cpp.

References owl::TWindow::GetHandle(), and owl::TWindow::SendMessage().

SetRuler() [2/2]

void owl::TSlider::SetRuler	(	int	tics[],
		int	ticCount,
		bool	snap = false )

Sets the ruler's custom tics and snap.

Snapping is not currently supported in native.

Definition at line 193 of file slider.cpp.

References owl::TWindow::GetHandle(), PRECONDITION, and owl::TWindow::SendMessage().

SetSel()

void owl::TSlider::SetSel	(	int	start,
		int	end,
		bool	redraw = true )

Set a selection range for the slider.

Requires that TBS_ENABLESELRANGE style attribute be set.

Definition at line 223 of file slider.cpp.

References owl::TWindow::GetHandle(), owl::MkUint32(), and owl::TWindow::SendMessage().

SetTipSide()

void owl::TSlider::SetTipSide ( int loc )

inline

Definition at line 242 of file slider.h.

References owl::TWindow::SendMessage().

SetTooltips()

void owl::TSlider::SetTooltips ( HWND tooltip )

inline

Definition at line 234 of file slider.h.

References owl::TWindow::SendMessage().

SetupWindow()

void owl::TSlider::SetupWindow ( )

overrideprotectedvirtual

Calls TScrollBar::SetupWindow and SetupThumbRgn to set up the slider window.

Reimplemented from owl::TScrollBar.

Definition at line 267 of file slider.cpp.

References SetPosition(), SetRange(), SetRuler(), SetSel(), and owl::TScrollBar::SetupWindow().

SnapPos()

int owl::TSlider::SnapPos ( int pos )

protected

Constrains pos so it is in the range from Min to Max and (if snapping is enabled) performs snapping by rounding pos to the nearest TicGap.

Definition at line 287 of file slider.cpp.

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The documentation for this class was generated from the following files:

• include/owl/slider.h
• source/owlcore/slider.cpp