The DeleteObject function deletes a logical pen, brush, font, bitmap, region, or palette, freeing all system resources associated with the object. After the object is deleted, the specified handle is no longer valid.
BOOL DeleteObject(
HGDIOBJ hObject // handle to graphic object
);
If the function succeeds, the return value is nonzero.
If the specified handle is not valid or is currently selected into a device context, the return value is zero.
Windows NT: To get extended error information, call GetLastError.
Do not delete a drawing object (pen or brush) while it is still selected into a device context.
When a pattern brush is deleted, the bitmap associated with the brush is not deleted. The bitmap must be deleted independently.
Windows CE: The DeleteObject function returns false if the object is currently selected into a device context.
Windows NT: Requires version 3.1 or later.
Windows: Requires Windows 95 or later.
Windows CE: Requires version 1.0 or later.
Header: Declared in wingdi.h.
Import Library: Use gdi32.lib.
Device Contexts Overview, Device Context Functions, SelectObject