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OWLNext 7.0
Borland's Object Windows Library for the modern age
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OWLNext 7.0
Borland's Object Windows Library for the modern age
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Derived from TDC, TWindowDC is a device context (DC) class that provides access to the entire area owned by a window. More...
#include <owl/dc.h>
Public Member Functions | |
| TWindowDC (HWND wnd) | |
| Creates a TWindow object with the given owned window. | |
| ~TWindowDC () | |
 Public Member Functions inherited from owl::TDC | |
| TDC (HDC handle) | |
| use an existing DC, doesn't auto delete it | |
| TDC () | |
| for derived classes only | |
| virtual | ~TDC () |
| Default dtor does not delete Handle Calls RestoreObjects. | |
| operator HDC () const | |
| Must assume const is OK. | |
| bool | IsDC () const |
| Validation routine - used mainly for diagnostic purposes. | |
| void | SetDC (HDC hdc) |
| bool | GetDCOrg (TPoint &point) const |
| Obtains the final translation origin for this device context and places the value in point. | |
| virtual int | SaveDC () const |
| Saves the current state of this DC on a context stack. | |
| virtual bool | RestoreDC (int savedDC=-1) |
| Restores the given savedDC. | |
| virtual int | GetDeviceCaps (int index) const |
| Used under WIN3.1 or later, GetDeviceCaps returns capability information about this DC. | |
| virtual bool | ResetDC (const DEVMODE &devMode) |
| Updates this DC using data in the given devMode structure. | |
| void | SelectObject (const TBrush &brush) |
| Selects the given GDI brush object into this DC. | |
| void | SelectObject (const TPen &pen) |
| Selects the given GDI pen object into this DC. | |
| virtual void | SelectObject (const TFont &font) |
| Selects the given GDI font object into this DC. | |
| void | SelectObject (const TPalette &palette, bool forceBackground=false) |
| Selects the given GDI palette object into this DC. | |
| void | SelectObject (const TBitmap &bitmap) |
| Selects the given GDI bitmap object into this DC. | |
| virtual void | SelectStockObject (int index) |
| Selects into the DC a predefined stock pen, brush, font, or palette. | |
| void | RestoreBrush () |
| Restores the original GDI brush object to this DC. | |
| void | RestorePen () |
| Restores the original GDI pen object to this DC. | |
| virtual void | RestoreFont () |
| Restores the original GDI font object to this DC. | |
| void | RestorePalette () |
| Restores the original GDI palette object to this DC. | |
| void | RestoreBitmap () |
| Restores the original GDI bitmap object into this DC. | |
| void | RestoreTextBrush () |
| Restores the original GDI text brush object to this DC. | |
| void | RestoreObjects () |
| Restores all the original GDI objects to this DC. | |
| HANDLE | GetCurrentObject (uint objectType) const |
| Returns a handle to the currently selected object of the given objectType associated with this DC. | |
| bool | GetBrushOrg (TPoint &point) const |
| Places in point the current brush origin of this DC. | |
| bool | SetBrushOrg (const TPoint &origin, TPoint *oldOrg=nullptr) |
| Sets the origin of the currently selected brush of this DC with the given origin value. | |
| int | EnumObjects (uint objectType, GOBJENUMPROC proc, void *data) const |
| Enumerates the pen or brush objects available for this DC. | |
| TColor | GetNearestColor (const TColor &color) const |
| Returns the color nearest to the given Color argument for the current palette of this DC. | |
| int | RealizePalette () |
| Maps to the system palette the logical palette entries selected into this DC. | |
| void | UpdateColors () |
| Updates the client area of this DC by matching the current colors in the client area to the system palette on a pixel-by-pixel basis. | |
| uint | GetSystemPaletteEntries (int start, int num, PALETTEENTRY *entries) const |
| Retrieves a range of up to num palette entries, starting at start, from the system palette to the entries array of PALETTEENTRY structures. | |
| uint | GetSystemPaletteUse () const |
| Determines whether this DC has access to the full system palette. | |
| int | SetSystemPaletteUse (int usage) |
| Changes the usage of this DC's system palette. | |
| TColor | GetBkColor () const |
| Returns the current background color of this DC. | |
| virtual TColor | SetBkColor (const TColor &color) |
| Sets the current background color of this DC to the given color value or the nearest available. | |
| int | GetBkMode () const |
| Returns the background mode of this DC, either OPAQUE or TRANSPARENT. | |
| int | SetBkMode (int mode) |
| Sets the background mode to the given mode argument, which can be either OPAQUE or TRANSPARENT. | |
| int | GetPolyFillMode () const |
| Returns the current polygon-filling mode for this DC, either ALTERNATE or WINDING. | |
| int | SetPolyFillMode (int mode) |
| Description Sets the polygon-filling mode for this DC to the given mode value, either ALTERNATE or WINDING. | |
| int | GetROP2 () const |
| Returns the current drawing (raster operation) mode of this DC. | |
| int | SetROP2 (int mode) |
| Sets the current foreground mix mode mode of this DC to the given mode value and returns the previous mode. | |
| int | GetStretchBltMode () const |
| Returns the current stretching mode for this DC: BLACKONWHITE, COLORONCOLOR, or WHITEONBLACK. | |
| int | SetStretchBltMode (int mode) |
| Sets the stretching mode of this DC to the given mode value and returns the previous mode. | |
| TColor | GetTextColor () const |
| Returns the current text color of this DC. | |
| virtual TColor | SetTextColor (const TColor &color) |
| Sets the current text color of this DC to the given color value. | |
| bool | SetMiterLimit (float newLimit, float *oldLimit=nullptr) |
| Sets the limit of miter joins to newLimit and puts the previous value in oldLimit. | |
| int | GetMapMode () const |
| If successful, returns the current window mapping mode of this DC; otherwise, returns 0. | |
| virtual int | SetMapMode (int mode) |
| Sets the current window mapping mode of this DC to mode. | |
| bool | SetWorldTransform (XFORM &xform) |
| Sets a two-dimensional linear transformation, given by the xform structure, between world space and page space for this DC. | |
| bool | ModifyWorldTransform (XFORM &xform, uint32 mode) |
| Changes the current world transformation for this DC using the given xform and mode arguments. | |
| bool | GetViewportOrg (TPoint &point) const |
| The first version sets in the point argument the x- and y-extents (in device-units) of this DC's viewport. | |
| TPoint | GetViewportOrg () const |
| The first version sets in the point argument the x- and y-extents (in device-units) of this DC's viewport. | |
| virtual bool | SetViewportOrg (const TPoint &origin, TPoint *oldOrg=nullptr) |
| Sets this DC's viewport origin to the given origin value, and saves the previous origin in oldOrg. | |
| virtual bool | OffsetViewportOrg (const TPoint &delta, TPoint *oldOrg=nullptr) |
| Modifies this DC's viewport origin relative to the current values. | |
| bool | GetViewportExt (TSize &extent) const |
| The first version retrieves this DC's current viewport's x- and y-extents (in device units) and places the values in extent. | |
| TSize | GetViewportExt () const |
| The first version retrieves this DC's current viewport's x- and y-extents (in device units) and places the values in extent. | |
| virtual bool | SetViewportExt (const TSize &extent, TSize *oldExtent=nullptr) |
| Sets this DC's viewport x- and y-extents to the given extent values. | |
| virtual bool | ScaleViewportExt (int xNum, int xDenom, int yNum, int yDenom, TSize *oldExtent=nullptr) |
| Modifies this DC's viewport extents relative to the current values. | |
| bool | GetWindowOrg (TPoint &point) const |
| Places in point the x- and y-coordinates of the origin of the window associated with this DC. | |
| TPoint | GetWindowOrg () const |
| Places in point the x- and y-coordinates of the origin of the window associated with this DC. | |
| bool | SetWindowOrg (const TPoint &origin, TPoint *oldOrg=nullptr) |
| Sets the origin of the window associated with this DC to the given origin value, and saves the previous origin in oldOrg. | |
| bool | OffsetWindowOrg (const TPoint &delta, TPoint *oldOrg=nullptr) |
| Modifies this DC's window origin relative to the current values. | |
| bool | GetWindowExt (TSize &extent) const |
| Retrieves this DC's window current x- and y-extents (in device units). | |
| TSize | GetWindowExt () const |
| Retrieves this DC's window current x- and y-extents (in device units). | |
| virtual bool | SetWindowExt (const TSize &extent, TSize *oldExtent=nullptr) |
| Sets this DC's window x- and y-extents to the given extent values. | |
| virtual bool | ScaleWindowExt (int xNum, int xDenom, int yNum, int yDenom, TSize *oldExtent=nullptr) |
| Modifies this DC's window extents relative to the current values. | |
| bool | DPtoLP (TPoint *points, int count=1) const |
| Converts each of the count points in the points array from device points to logical points. | |
| bool | DPtoLP (TRect &rect) const |
| bool | LPtoDP (TPoint *points, int count=1) const |
| Converts each of the count points in the points array from logical points to device points. | |
| bool | LPtoDP (TRect &rect) const |
| Converts each of the count points in the points array from logical points to device points. | |
| int | GetClipBox (TRect &rect) const |
| Places the current clip box size of this DC in rect. | |
| TRect | GetClipBox () const |
| Places the current clip box size of this DC in rect. | |
| int | ExcludeClipRect (const TRect &rect) |
| Creates a new clipping region for this DC. | |
| int | ExcludeUpdateRgn (HWND wnd) |
| Prevents drawing within invalid areas of a window by excluding an updated region of this DC's window from its clipping region. | |
| int | IntersectClipRect (const TRect &rect) |
| Creates a new clipping region for this DC's window by forming the intersection of the current region with the rectangle specified by rect. | |
| int | OffsetClipRgn (const TPoint &delta) |
| Moves the clipping region of this DC by the x- and y-offsets specified in delta. | |
| int | SelectClipRgn (const TRegion ®ion) |
| Selects the given region as the current clipping region for this DC. | |
| int | SelectClipRgn (HRGN r=0) |
| Selects the given region as the current clipping region for the device context. | |
| int | RemoveClipRgn () |
| Removes the device context's clipping region. | |
| bool | PtVisible (const TPoint &point) const |
| Returns true if the given point lies within the clipping region of this DC; otherwise, returns false. | |
| bool | RectVisible (const TRect &rect) const |
| Returns true if any part of the given rectangle, rect, lies within the clipping region of this DC; otherwise, returns false. | |
| bool | GetBoundsRect (TRect &bounds, uint16 flags) const |
| Reports in bounds the current accumulated bounding rectangle of this DC or of the Windows manager, depending on the value of flags. | |
| uint | SetBoundsRect (TRect &bounds, uint flags) |
| Controls the accumulation of bounding rectangle information for this DC. | |
| int | GetClipRgn (TRegion ®ion) const |
| Retrieves this DC's current clip-region and, if successful, places a copy of it in the region argument. | |
| int | EnumMetaFile (const TMetaFilePict &metaFile, MFENUMPROC callback, void *data) const |
| Enumerates the GDI calls within the given metaFile. | |
| bool | PlayMetaFile (const TMetaFilePict &metaFile) |
| Plays the contents of the given metaFile on this DC. | |
| void | PlayMetaFileRecord (HANDLETABLE &handletable, METARECORD &metaRecord, int count) |
| Plays the metafile record given in metaRecord to this DC by executing the GDI function call contained in that record. | |
| int | EnumEnhMetaFile (const TEnhMetaFilePict &metaFile, ENHMFENUMPROC callback, void *data, const TRect *rect) const |
| Enumerate through the enhanced metafile records. | |
| bool | PlayEnhMetaFile (const TEnhMetaFilePict &metaFile, const TRect *rect) |
| Play the enhanced metafile onto this device context. | |
| void | PlayEnhMetaFileRecord (HANDLETABLE &handletable, ENHMETARECORD &metaRecord, uint count) |
| Play one record from the enhanced metafile onto this DC. | |
| bool | GetCurrentPosition (TPoint &point) const |
| Reports in point the logical coordinates of this DC's current position. | |
| bool | MoveTo (int x, int y) |
| Moves the current position of this DC to the given x- and y-coordinates or to the given point. | |
| bool | MoveTo (const TPoint &point) |
| Moves the current position of this DC to the given x- and y-coordinates or to the given point. | |
| bool | MoveTo (const TPoint &point, TPoint &oldPoint) |
| Moves the current position of this DC to the given x- and y-coordinates or to the given point. | |
| bool | DrawIcon (int x, int y, const TIcon &icon) |
| Draws the given icon on this DC. | |
| bool | DrawIcon (const TPoint &point, const TIcon &icon) |
| Draws the given icon on this DC. | |
| bool | DrawCursor (int x, int y, const TCursor &cursor) |
| bool | DrawCursor (const TPoint &point, const TCursor &cursor) |
| bool | DrawIcon (int x, int y, const TIcon &icon, int w, int h, int aniStep=0, HBRUSH bkBr=0, uint flags=DI_NORMAL) |
| bool | DrawIcon (const TPoint &point, const TIcon &icon, const TSize &size, int aniStep=0, HBRUSH bkBr=0, uint flags=DI_NORMAL) |
| bool | DrawCursor (int x, int y, const TCursor &cursor, int w, int h, int aniStep=0, HBRUSH bkBr=0, uint flags=DI_NORMAL) |
| bool | DrawCursor (const TPoint &point, const TCursor &cursor, const TSize &size, int aniStep=0, HBRUSH bkBr=0, uint flags=DI_NORMAL) |
| bool | FrameRect (int x1, int y1, int x2, int y2, const TBrush &brush) |
| Draws a border on this DC around the given rectangle, rect, using the given brush, brush. | |
| bool | FrameRect (const TRect &rect, const TBrush &brush) |
| Draws a border on this DC around the given rectangle, rect, using the given brush, brush. | |
| bool | FillRect (int x1, int y1, int x2, int y2, const TBrush &brush) |
| Fills the given rectangle on this DC using the specified brush. | |
| bool | FillRect (const TRect &rect, const TBrush &brush) |
| Fills the given rectangle on this DC using the specified brush. | |
| bool | InvertRect (int x1, int y1, int x2, int y2) |
| Inverts the given rectangle, rect, on this DC. | |
| bool | InvertRect (const TRect &rect) |
| Inverts the given rectangle, rect, on this DC. | |
| bool | DrawFocusRect (int x1, int y1, int x2, int y2) |
| Draws the given rectangle on this DC in the style used to indicate focus. | |
| bool | DrawFocusRect (const TRect &rect) |
| Draws the given rectangle on this DC in the style used to indicate focus. | |
| bool | DrawEdge (const TRect &frame, uint edge, uint flags) |
| void | PaintFrame (const TRect &fr, uint flags, const TColor &tlColor, const TColor &brColor) |
| bool | TextRect (int x1, int y1, int x2, int y2) |
| Fills the given rectangle, clipping any text to the rectangle. | |
| bool | TextRect (const TRect &rect) |
| Fills the given rectangle, clipping any text to the rectangle. | |
| bool | TextRect (int x1, int y1, int x2, int y2, const TColor &color) |
| Fills the given rectangle, clipping any text to the rectangle. | |
| bool | TextRect (const TRect &rect, const TColor &color) |
| Fills the given rectangle, clipping any text to the rectangle. | |
| bool | FillSolidRect (const TRect &r, const TColor &color) |
| void | OWLFastWindowFrame (TBrush &brush, TRect &r, int xWidth, int yWidth, uint32 rop=PATCOPY) |
| Draws a frame of the specified size and thickness with the given brush. | |
| bool | FrameRgn (const TRegion ®ion, const TBrush &brush, const TSize &brushSize) |
| Draws a border on this DC around the given region, region, using the given brush, brush. | |
| bool | FillRgn (const TRegion ®ion, const TBrush &brush) |
| Fills the given region on this DC using the specified brush. | |
| bool | InvertRgn (const TRegion ®ion) |
| Inverts the given region, on this DC. | |
| bool | PaintRgn (const TRegion ®ion) |
| Paints the given rectangle using the currently selected brush for this DC. | |
| bool | AngleArc (int x, int y, uint32 radius, float startAngle, float sweepAngle) |
| Draws a line segment and an arc on this DC using the currently selected pen object. | |
| bool | AngleArc (const TPoint ¢er, uint32 radius, float startAngle, float sweepAngle) |
| Draws a line segment and an arc on this DC using the currently selected pen object. | |
| bool | Arc (int x1, int y1, int x2, int y2, int x3, int y3, int x4, int y4) |
| Draws an elliptical arc on this DC using the currently selected pen object. | |
| bool | Arc (const TRect &r, const TPoint &start, const TPoint &end) |
| Draws an elliptical arc on this DC using the currently selected pen object. | |
| bool | Chord (int x1, int y1, int x2, int y2, int x3, int y3, int x4, int y4) |
| Draws and fills a chord (a region bounded by the intersection of an ellipse and a line segment) on this DC using the currently selected pen and brush objects. | |
| bool | Chord (const TRect &R, const TPoint &Start, const TPoint &End) |
| Draws and fills a chord (a region bounded by the intersection of an ellipse and a line segment) on this DC using the currently selected pen and brush objects. | |
| bool | Pie (int x1, int y1, int x2, int y2, int x3, int y3, int x4, int y4) |
| Using the currently selected pen and brush objects, draws and fills a pie-shaped wedge by drawing an elliptical arc whose center and end points are joined by lines. | |
| bool | Pie (const TRect &rect, const TPoint &start, const TPoint &end) |
| Using the currently selected pen and brush objects, draws and fills a pie-shaped wedge by drawing an elliptical arc whose center and end points are joined by lines. | |
| bool | Ellipse (int x1, int y1, int x2, int y2) |
| Draws and fills an ellipse on this DC using the currently selected pen and brush objects. | |
| bool | Ellipse (const TPoint &p1, const TPoint &p2) |
| Draws and fills an ellipse on this DC using the currently selected pen and brush objects. | |
| bool | Ellipse (const TPoint &point, const TSize &size) |
| Draws and fills an ellipse on this DC using the currently selected pen and brush objects. | |
| bool | Ellipse (const TRect &rect) |
| Draws and fills an ellipse on this DC using the currently selected pen and brush objects. | |
| bool | LineTo (int x, int y) |
| Draws a line on this DC using the current pen object. | |
| bool | LineTo (const TPoint &point) |
| Draws a line on this DC using the current pen object. | |
| bool | Polyline (const TPoint *points, int count) |
| Using the current pen object, draws on this DC a count of line segments (there must be at least 2). | |
| bool | Polygon (const TPoint *points, int count) |
| bool | PolyPolygon (const TPoint *points, const int *PolyCounts, int count) |
| Using the current pen and polygon-filling mode, draws and fills on this DC the number of closed polygons indicated in count (which must be >= 2). | |
| bool | PolyPolyline (const TPoint *points, const int *PolyCounts, int count) |
| Using the currently selected pen object, draws on this DC the number of polylines (connected line segments) indicated in count. | |
| bool | PolyBezier (const TPoint *points, int count) |
| Draws one or more connected cubic Bezier splines through the points specified in the points array using the currently selected pen object. | |
| bool | PolyBezierTo (const TPoint *points, int count) |
| Draws one or more connected cubic Beziers splines through the points specified in the points array using the currently selected pen object. | |
| bool | PolyDraw (const TPoint *points, uint8 *types, int count) |
| Using the currently selected pen object, draws one or more possibly disjoint sets of line segments or Bezier splines or both on this DC. | |
| bool | PolylineTo (const TPoint *points, int count) |
| Draws one or more connected line segments on this DC using the currently selected pen object. | |
| bool | Rectangle (int x1, int y1, int x2, int y2) |
| Draws and fills a rectangle of the given size on this DC with the current pen and brush objects. | |
| bool | Rectangle (const TPoint &p1, const TPoint &p2) |
| Draws and fills a rectangle of the given size on this DC with the current pen and brush objects. | |
| bool | Rectangle (const TPoint &point, const TSize &s) |
| Draws and fills a rectangle of the given size on this DC with the current pen and brush objects. | |
| bool | Rectangle (const TRect &rect) |
| Draws and fills a rectangle of the given size on this DC with the current pen and brush objects. | |
| bool | RoundRect (int x1, int y1, int x2, int y2, int x3, int y3) |
| Draws and fills a rounded rectangle of the given size on this DC with the current pen and brush objects. | |
| bool | RoundRect (const TPoint &p1, const TPoint &p2, const TPoint &rad) |
| Draws and fills a rounded rectangle of the given size on this DC with the current pen and brush objects. | |
| bool | RoundRect (const TPoint &p, const TSize &s, const TPoint &rad) |
| Draws and fills a rounded rectangle of the given size on this DC with the current pen and brush objects. | |
| bool | RoundRect (const TRect &rect, const TPoint &rad) |
| Draws and fills a rounded rectangle of the given size on this DC with the current pen and brush objects. | |
| TColor | GetPixel (int x, int y) const |
| Returns the color of the pixel at the given location. | |
| TColor | GetPixel (const TPoint &point) const |
| Returns the color of the pixel at the given location. | |
| TColor | SetPixel (int x, int y, const TColor &color) |
| Sets the color of the pixel at the given location to the given color and returns the pixel's previous color. | |
| TColor | SetPixel (const TPoint &p, const TColor &color) |
| Sets the color of the pixel at the given location to the given color and returns the pixel's previous color. | |
| bool | BitBlt (int dstX, int dstY, int w, int h, const TDC &srcDC, int srcX, int srcY, uint32 rop=SRCCOPY) |
| Performs a bit-block transfer from srcDc (the given source DC) to this DC (the destination DC). | |
| bool | BitBlt (const TRect &dst, const TDC &srcDC, const TPoint &src, uint32 rop=SRCCOPY) |
| Performs a bit-block transfer from srcDc (the given source DC) to this DC (the destination DC). | |
| bool | PatBlt (int x, int y, int w, int h, uint32 rop=PATCOPY) |
| bool | PatBlt (const TRect &dst, uint32 rop=PATCOPY) |
| bool | ScrollDC (int x, int y, const TRect &scroll, const TRect &clip, TRegion &updateRgn, TRect &updateRect) |
| Scrolls a rectangle of bits horizontally by x (or delta.x in the second version) device-units, and vertically by y (or delta.y) device-units on this DC. | |
| bool | ScrollDC (const TPoint &delta, const TRect &scroll, const TRect &clip, TRegion &updateRgn, TRect &updateRect) |
| Scrolls a rectangle of bits horizontally by x (or delta.x in the second version) device-units, and vertically by y (or delta.y) device-units on this DC. | |
| bool | StretchBlt (int dstX, int dstY, int dstW, int dstH, const TDC &srcDC, int srcX, int srcY, int srcW, int srcH, uint32 rop=SRCCOPY) |
| Copies a bitmap from the source DC to a destination rectangle on this DC specified either by upper left-corner coordinates (dstX, dstY), width dstW, and height dstH, or (in the second version) by a TRect object, dst. | |
| bool | StretchBlt (const TRect &dst, const TDC &srcDC, const TRect &src, uint32 rop=SRCCOPY) |
| Copies a bitmap from the source DC to a destination rectangle on this DC specified either by upper left-corner coordinates (dstX, dstY), width dstW, and height dstH, or (in the second version) by a TRect object, dst. | |
| bool | MaskBlt (const TRect &dst, const TDC &srcDC, const TPoint &src, const TBitmap &maskBm, const TPoint &maskPos, uint32 rop=SRCCOPY) |
| Copies a bitmap from the given source DC to this DC. | |
| bool | PlgBlt (const TPoint *points, const TDC &srcDC, const TRect &src, const TBitmap &maskBm, const TPoint &maskPos) |
| Performs a bit-block transfer from the given source DC to this DC. | |
| bool | TransparentBlt (const TRect &dst, const TDC &srcDC, const TRect &src, const TColor &transparent) |
| Performs a bit-block transfer of the color data corresponding to a rectangle of pixels from the specified source device context into a destination device context. | |
| int | GetDIBits (const TBitmap &bitmap, uint startScan, uint numScans, void *bits, const BITMAPINFO &info, uint16 usage) |
| The first version retrieves some or all of the bits from the given bitmap on this DC and copies them to the bits buffer using the DIB (device-independent bitmap) format specified by the BITMAPINFO argument, info. | |
| int | GetDIBits (const TBitmap &bitmap, TDib &dib) |
| The first version retrieves some or all of the bits from the given bitmap on this DC and copies them to the bits buffer using the DIB (device-independent bitmap) format specified by the BITMAPINFO argument, info. | |
| int | SetDIBits (TBitmap &bitmap, uint startScan, uint numScans, const void *bits, const BITMAPINFO &Info, uint16 usage) |
| The first version sets the pixels in bitmap (the given destination bitmap on this DC) from the source DIB (device-independent bitmap) color data found in the byte array bits and the BITMAPINFO structure, Info. | |
| int | SetDIBits (TBitmap &bitmap, const TDib &dib) |
| The first version sets the pixels in bitmap (the given destination bitmap on this DC) from the source DIB (device-independent bitmap) color data found in the byte array bits and the BITMAPINFO structure, Info. | |
| int | SetDIBitsToDevice (const TRect &dst, const TPoint &src, uint startScan, uint numScans, const void *bits, const BITMAPINFO &bitsInfo, uint16 usage) |
| The first version sets the pixels in dst (the given destination rectangle on this DC) from the source DIB (device-independent bitmap) color data found in the byte array bits and the BITMAPINFO structure, bitsInfo. | |
| int | SetDIBitsToDevice (const TRect &dst, const TPoint &src, const TDib &dib) |
| The first version sets the pixels in dst (the given destination rectangle on this DC) from the source DIB (device-independent bitmap) color data found in the byte array bits and the BITMAPINFO structure, bitsInfo. | |
| int | StretchDIBits (const TRect &dst, const TRect &src, const void *bits, const BITMAPINFO &bitsInfo, uint16 usage, uint32 rop=SRCCOPY) |
| Copies the color data from src, the source rectangle of pixels in the given DIB (device-independent bitmap) on this DC, to dst, the destination rectangle. | |
| int | StretchDIBits (const TRect &dst, const TRect &src, const TDib &dib, uint32 rop=SRCCOPY) |
| Copies the color data from src, the source rectangle of pixels in the given DIB (device-independent bitmap) on this DC, to dst, the destination rectangle. | |
| HBITMAP | CreateDIBSection (const BITMAPINFO &info, uint usage, void **bits, HANDLE section=0, uint32 offset=0) |
| Create a fast DIB under Win32. | |
| bool | FloodFill (const TPoint &point, const TColor &color) |
| Fills an area on this DC starting at point and using the currently selected brush object. | |
| bool | ExtFloodFill (const TPoint &point, const TColor &color, uint16 fillType) |
| Fills an area on this DC starting at point and using the currently selected brush object. | |
| virtual bool | TextOut (int x, int y, const tstring &str, int count=-1) |
| Draws up to count characters of the given null-terminated string in the current font on this DC. | |
| bool | TextOut (const TPoint &p, const tstring &str, int count=-1) |
| Draws up to count characters of the given null-terminated string in the current font on this DC. | |
| virtual bool | ExtTextOut (int x, int y, uint16 options, const TRect *r, const tstring &str, int count=-1, const int *dx=nullptr) |
| Draws up to count characters of the given null-terminated string in the current font on this DC. | |
| bool | ExtTextOut (const TPoint &p, uint16 options, const TRect *r, const tstring &str, int count=-1, const int *dx=nullptr) |
| Draws up to count characters of the given null-terminated string in the current font on this DC. | |
| virtual bool | TabbedTextOut (const TPoint &p, const tstring &str, int count, int numPositions, const int *positions, int tabOrigin, TSize &size) |
| Draws up to count characters of the given null-terminated string in the current font on this DC. | |
| bool | TabbedTextOut (const TPoint &p, const tstring &str, int count, int numPositions, const int *positions, int tabOrigin) |
| Draws up to count characters of the given null-terminated string in the current font on this DC. | |
| int | DrawText (const tstring &str, int count, const TRect &, uint16 format=0) |
| Overload for const TRect& For obvious reasons, this overload does not support the DT_CALCRECT format flag. | |
| virtual int | DrawText (const tstring &str, int count, TRect &, uint16 format=0) |
| Formats and draws in the given rectangle, r, up to count characters of the null-terminated string using the current font for this DC. | |
| virtual int | DrawTextEx (TCHAR *str, int count, TRect *=nullptr, uint format=0, LPDRAWTEXTPARAMS=nullptr) |
| Formats and draws in the given rectangle, r, up to count characters of the null-terminated string using the current font for this DC. | |
| bool | DrawFrameControl (TRect lpRect, UINT nType, UINT nState) |
| virtual bool | GrayString (const TBrush &brush, GRAYSTRINGPROC outputFunc, const tstring &str, int count, const TRect &r) |
| Draws in the given rectangle (r) up to count characters of gray text from string using the given brush, brush, and the current font for this DC. | |
| bool | GetTextExtent (const tstring &str, int stringLen, TSize &size) const |
| Computes the extent (width and height) in logical units of the text line consisting of stringLen characters from the null-terminated string. | |
| TSize | GetTextExtent (const tstring &str, int stringLen) const |
| Computes the extent (width and height) in logical units of the text line consisting of stringLen characters from the null-terminated string. | |
| bool | GetTabbedTextExtent (const tstring &str, int stringLen, int numPositions, const int *positions, TSize &size) const |
| Computes the extent (width and height) in logical units of the text line consisting of stringLen characters from the null-terminated string. | |
| TSize | GetTabbedTextExtent (const tstring &str, int stringLen, int numPositions, const int *positions) const |
| Computes the extent (width and height) in logical units of the text line consisting of stringLen characters from the null-terminated string. | |
| uint | GetTextAlign () const |
| If successful, returns the current text-alignment flags for this DC; otherwise, returns the value GDI_ERROR. | |
| uint | SetTextAlign (uint flags) |
| Sets the text-alignment flags for this DC. | |
| int | GetTextCharacterExtra () const |
| If successful, returns the current intercharacter spacing, in logical units, for this DC; otherwise, returns INVALID_WIDTH. | |
| int | SetTextCharacterExtra (int extra) |
| If successful, sets the current intercharacter spacing to extra, in logical units, for this DC, and returns the previous intercharacter spacing. | |
| bool | SetTextJustification (int breakExtra, int breakCount) |
| When text strings are displayed using TDC::TextOut and TDC::ExtTextOut, sets the number of logical units specified in breakExtra as the total extra space to be added to the number of break characters specified in breakCount. | |
| int | GetTextFaceLength () const |
| Retrieves the length of the typeface name for the current font on this DC. | |
| int | GetTextFace (int count, TCHAR *facename) const |
| Retrieves the typeface name for the current font on this DC. | |
| tstring | GetTextFace () const |
| bool | GetTextMetrics (TEXTMETRIC &metrics) const |
| Fills the metrics structure with metrics data for the current font on this DC. | |
| TEXTMETRIC | GetTextMetrics () const |
| Functional style overload. | |
| uint32 | GetGlyphOutline (uint chr, uint format, GLYPHMETRICS &gm, uint32 buffSize, void *buffer, const MAT2 &mat2) |
| Retrieves TrueType metric and other data for the given character, chr, on this DC and places it in gm and buffer. | |
| int | GetKerningPairs (int pairs, KERNINGPAIR *krnPair) |
| Retrieves kerning pairs for the current font of this DC up to the number specified in pairs and copies them into the krnPair array of KERNINGPAIR structures. | |
| uint | GetOutlineTextMetrics (uint data, OUTLINETEXTMETRIC &otm) |
| Retrieves metric information for TrueType fonts on this DC and copies it to the given array of OUTLINETEXTMETRIC structures, otm. | |
| bool | GetCharWidth (uint firstChar, uint lastChar, int *buffer) |
| Retrieves the widths in logical units for a consecutive sequence of characters in the current font for this DC. | |
| uint32 | SetMapperFlags (uint32 flag) |
| Alters the algorithm used by the font mapper when mapping logical fonts to physical fonts on this DC. | |
| bool | GetAspectRatioFilter (TSize &size) const |
| Retrieves the setting of the current aspect-ratio filter for this DC. | |
| int | EnumFonts (LPCTSTR faceName, OLDFONTENUMPROC callback, void *data) const |
| Enumerates the fonts available on this DC for the given faceName. | |
| int | EnumFonts (const tstring &facename, OLDFONTENUMPROC callback, void *data) const |
| int | EnumFontFamilies (LPCTSTR family, FONTENUMPROC proc, void *data) const |
| Enumerates the fonts available to this DC in the font family specified by family. | |
| int | EnumFontFamilies (const tstring &family, FONTENUMPROC proc, void *data) const |
| uint32 | GetFontData (uint32 table, uint32 offset, void *buffer, long data) |
| Retrieves font-metric information from a scalable TrueType font file (specified by table and starting at offset into this table) and places it in the given buffer. | |
| bool | GetCharABCWidths (uint firstChar, uint lastChar, ABC *abc) |
| Retrieves the widths of consecutive characters in the range firstChar to lastChar from the current TrueType font of this DC. | |
| bool | BeginPath () |
| Opens a new path bracket for this DC and discards any previous paths from this DC. | |
| bool | CloseFigure () |
| Closes an open figure in this DC's open path bracket by drawing a line from the current position to the first point of the figure (usually the point specified by the most recent TDC::MoveTo call), and connecting the lines using the current join style for this DC. | |
| bool | EndPath () |
| Closes the path bracket and selects the path it defines into this DC. | |
| bool | FlattenPath () |
| Transforms any curves in the currently selected path of this DC. | |
| bool | WidenPath () |
| Redefines the current, closed path on this DC as the area that would be painted if the path were stroked with this DC's current pen. | |
| bool | FillPath () |
| Closes any open figures in the current path of this DC and fills the path's interior using the current brush and polygon fill mode. | |
| bool | StrokePath () |
| Renders the current, closed path on this DC and uses the DC's current pen. | |
| bool | StrokeAndFillPath () |
| Closes any open figures in the current path of this DC, strokes the outline of the path using the current pen, and fills its interior using the current brush and polygon fill mode. | |
| bool | SelectClipPath (int mode) |
| Selects the current path on this DC as a clipping region, combining any existing clipping region using the specified mode as shown in the following table: | |
| HRGN | PathToRegion () |
| If successful, returns a region created from the closed path in this DC; otherwise, returns 0. | |
| virtual HDC | GetAttributeHDC () const |
| Returns the attributes of the DC object. | |
| HDC | GetHDC () const |
| Return the handle of the device context. | |
Protected Member Functions | |
| TWindowDC () | |
| Used for derived classes only. | |
| Protected Member Functions inherited from owl::TDC | |
| TDC (HDC handle, TAutoDelete autoDelete) | |
| Constructor for use by derived classes only. | |
| void | Init () |
| Sets OrgBrush, OrgPen, OrgFont, OrgBitmap, and OrgPalette to 0, and sets ShouldDelete to true. | |
| void | CheckValid (uint resId=IDS_GDIFAILURE) |
| Protected Member Functions inherited from owl::TGdiBase | |
| void | CheckValid (uint resId=IDS_GDIFAILURE) |
| TGdiBase () | |
| This default constructor sets Handle to 0 and ShouldDelete to true. | |
| TGdiBase (HANDLE handle, TAutoDelete autoDelete=NoAutoDelete) | |
| Initializes members to given values, and validates the handle. | |
Protected Attributes | |
| HWND | Wnd |
| Holds a handle to the window owned by this device context. | |
| Protected Attributes inherited from owl::TDC | |
| HANDLE | Handle |
| < make this function available to derivatives | |
| bool | ShouldDelete |
| < The handle of this DC. Uses the base class's handle (TGdiBase::Handle.) | |
| Protected Attributes inherited from owl::TGdiBase | |
| HANDLE | Handle |
| GDI handle of this object. | |
| bool | ShouldDelete |
| Should object delete GDI handle in dtor? | |
Additional Inherited Members | |
| Public Types inherited from owl::TDC | |
| enum | TFlag { Left = 0x0001 , Top = 0x0002 , Right = 0x0004 , Bottom = 0x0008 , TopLeft = Top | Left , TopRight = Top | Right , BottomLeft = Bottom | Left , BottomRight = Bottom | Right , Rect = Top | Left | Bottom | Right , Diagonal = 0x0010 , Fill = 0x0800 , Soft = 0x1000 , Adjust = 0x2000 , Flat = 0x4000 , Mono = 0x8000 } |
| Which edge(s) to draw. ctor defaults to all 4. More... | |
| enum | TStyle { None , Plain , Raised , Recessed , Embossed , Grooved , ButtonUp , ButtonDn , WndRaised , WndRecessed , WellSet , ButtonUp3x , ButtonDn3x } |
| Enumeration describing hilevel border styles. More... | |
| enum | TEdge { RaisedOuter = 0x01 , SunkenOuter = 0x02 , RaisedInner = 0x04 , SunkenInner = 0x08 , EdgeOuter = 0x03 , EdgeInner = 0x0C , EdgeRaised = RaisedOuter | RaisedInner , EdgeSunken = SunkenOuter | SunkenInner , EdgeEtched = SunkenOuter | RaisedInner , EdgeBump = RaisedOuter | SunkenInner } |
| Enumeration describing the type of edge to be drawn. More... | |
| Static Protected Member Functions inherited from owl::TGdiBase | |
| static void | _CheckValid (HANDLE handle, uint resId=IDS_GDIFAILURE) |
Derived from TDC, TWindowDC is a device context (DC) class that provides access to the entire area owned by a window.
TWindowDC is the base class for any DC class that releases its handle when it is finished.
| owl::TWindowDC::TWindowDC | ( | HWND | hWnd | ) |
Creates a TWindow object with the given owned window.
The data member Wnd is set to wnd.
Definition at line 29 of file windowdc.cpp.
References owl::TDC::CheckValid(), owl::TDC::Handle, and Wnd.
| owl::TWindowDC::~TWindowDC | ( | ) |
Definition at line 41 of file windowdc.cpp.
References owl::TDC::Handle, owl::TDC::RestoreObjects(), owl::TDC::ShouldDelete, and Wnd.
|
protected |
Used for derived classes only.
Definition at line 19 of file windowdc.cpp.
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protected |
1.10.0