IDirectDrawVideoPort::Flip (Windows CE 5.0)
This method instructs the DirectDrawVideoPort object to write the next frame of video to a new surface.
HRESULT Flip(LPDIRECTDRAWSURFACE lpDDSurface, DWORD dwFlags);
Parameters
lpDDSurface
Address of the IDirectDrawSurface interface for the surface that will receive the next frame of video.Setting this parameter to NULL causes DirectDraw to cycle through surfaces in the flipping chain in the order they were attached.
dwFlags
Flip options flags. The following table shows the possible flags.Flag Description DDVPFLIP_VIDEO The specified surface is to receive the normal video data. DDVPFLIP_VBI The specified surface is to receive only the data within the vertical blanking interval.
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 |
Remarks
This method can be used to prevent tearing. Calls to IDirectDrawVideoPort::Flip are asynchronous. The actual flip operation will always be synchronized with the vertical blank of the video signal.
Requirements
OS Versions: Windows CE 2.12 and later. Version 2.12 requires DXPAK 1.0 or later.
Header: Dvp.h.
Link Library: Ddraw.lib.
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