Retrieves the DC (Device Context) of a window, control or screen. This DC can be used to handle the window, the control, ... with the Windows APIs (especially the drawing functions of the Windows API).
Remark: If
SysGetDC has already been called and if the previous DC was not freed by
SysReleaseDC, the former DC is automatically freed by
SysGetDC.
// Retrieve the DC of the "Microsoft Word - Sales 2000.DOC" window
ResHandle = SysWinHandle("Microsoft Word - Sales 2000.DOC")
ResGetDC = SysGetDC(ResHandle)
Syntax
<Result> = SysGetDC(<Handle>)
<Result>: Integer
- DC of the window, control or screen,
- 0 if an error occurred.
<Handle>: Integer
- Handle of the window or control to use.
- 0 to retrieve the DC of the screen.
Remarks
The window handle is returned:
The handle of a control is returned by
Handle.