Anteckning
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Call this member function to set a window's region.
int SetWindowRgn(
HRGN hRgn,
BOOL bRedraw
);
Parameters
hRgn
A handle to a region.bRedraw
If TRUE, the operating system redraws the window after setting the region; otherwise, it does not. Typically, set bRedraw to TRUE if the window is visible. If set to TRUE, the system sends the WM_WINDOWPOSCHANGING and WM_WINDOWPOSCHANGED messages to the window.
Return Value
If the function succeeds, the return value is nonzero. If the function fails, the return value is zero.
Remarks
The coordinates of a window's window region are relative to the upper-left corner of the window, not the client area of the window.
After a successful call to SetWindowRgn, the operating system owns the region specified by the region handle hRgn. The operating system does not make a copy of the region, so do not make any further function calls with this region handle, and do not close this region handle.
Requirements
Header: afxwin.h