### IDirectDraw2::FlipToGDISurface

The IDirectDraw2::FlipToGDISurface method makes the surface that GDI writes to the primary surface.

HRESULT FlipToGDISurface();

##### Return Values

If the method succeeds, the return value is DD_OK.

If the method fails, the return value may be one of the following error values:

DDERR_INVALIDOBJECT
DDERR_INVALIDPARAMS
DDERR_NOTFOUND

##### Remarks

This method can be called at the end of a page-flipping application to ensure that the display memory that GDI is writing to is visible to the user.

##### See Also

IDirectDraw2::GetGDISurface