GetWindowExtEx info Overview Group

This function retrieves the x-extents and y-extents of the window for the specified device context.

BOOL GetWindowExtEx(

HDC hdc,

// handle of device context

LPSIZE lpSize

// address of structure receiving window extents

);

Parameters

hdc: Identifies the device context.
lpSize: Points to a SIZE structure. The x- and y-extents in page-space units are placed in this structure.

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.

HDC hdc,	// handle of device context
LPSIZE lpSize	// address of structure receiving window extents
);