A typical Windows application has many different types of windows: overlapped or pop-up, bordered, scrollable, and captioned, to name a few.

The different types are selected with style attributes. Style attributes, as well as a window's title, are set during a window object's initialization and are used during the interface element's creation.

A window object's creation attributes, such as style and title, are stored in the object's Attr member, a TWindowAttr structure.

The following table shows TWindowAttr's members:

Member	Type	Description
Style	uint32	Style constant.
ExStyle	uint32	Extended style constant.
X	int	The horizontal screen coordinate of the window's upper left corner.
Y	int	The vertical screen coordinate of the window's upper left corner.
W	int	The window's initial width in screen coordinates.
H	int	The window's initial height in screen coordinates.
Menu	TResId	ID of the window's menu resource. Do not try to directly assign a menu identifier to Attr.Menu! Use the AssignMenu function instead.
Id	int	Child window ID for communicating between a control and its parent. Id should be unique for all child windows of the same parent. If the control is defined in a resource, its Id should be the same as the resource ID. A window should never have both Menu and Id set, since these members actually occupy the same in the window's HWND structure.
Param	char far *	Used by TMDIClient to hold information about the MDI frame and child windows.
AccelTable	TResId	ID of the window's accelerator table resource.

See Also