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Checks the version of DirectDraw installed on the current system.
BOOL IsDirectDrawVersion1(void);
Return Values
Returns TRUE if the installed version of DirectDraw doesn't support the IDirectDraw2interface, or FALSE if the m_pDirectDrawdata member is NULL or the installed version of DirectDraw supports IDirectDraw2.
Remarks
The video renderer must know what the installed version of DirectDraw is to perform certain tasks, such as full-screen playback, which the IDirectDraw2interface supports.