IDirectDraw4_WaitForVerticalBlank 1705 3rdparty/include/dshow/ddraw.h #define IDirectDraw4_WaitForVerticalBlank(p,a,b) (p)->lpVtbl->WaitForVerticalBlank(p,a,b) IDirectDraw4_WaitForVerticalBlank 1738 3rdparty/include/dshow/ddraw.h #define IDirectDraw4_WaitForVerticalBlank(p,a,b) (p)->WaitForVerticalBlank(a,b)