The SetViewportExtEx function sets the horizontal and vertical extents of the viewport for a device context by using the specified values.
BOOL SetViewportExtEx(
HDC hdc, |
// handle of device context |
int nXExtent, |
// new horizontal viewport extent |
int nYExtent, |
// new vertical viewport extent |
LPSIZE lpSize |
// original viewport extent |
); |
If the function succeeds, the return value is nonzero.
If the function fails, the return value is zero. To get extended error information, call GetLastError.
When the following mapping modes are set, calls to the SetWindowExtEx and SetViewportExtEx functions are ignored.
When MM_ISOTROPIC mode is set, an application must call the SetWindowExtEx function before it calls SetViewportExtEx.
GetViewportExtEx, SetWindowExtEx, SIZE
file: /Techref/os/win/api/win32/func/src/f83_13.htm, 3KB, , updated: 2000/4/7 11:19, local time: 2024/12/23 15:58,
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