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The EnumVideoCallbackfunction is an application-defined callback procedure for the IDDVideoPortContainer::EnumVideoPortsmethod.
HRESULT WINAPI EnumVideoCallback( LPDDVIDEOPORTCAPS lpDDVideoPortCaps , LPVOID lpContext );
Parameters
- lpDDVideoPortCaps
- Pointer to the DDVIDEOPORTCAPSstructure that contains the video port information, including the ID and capabilities. This data is read-only.
- lpContext
- Pointer to a caller-defined structure that is passed to the
member every time it is called.
Return Values
The callback function returns DDENUMRET_OK to continue the enumeration.
The callback function returns DDENUMRET_CANCEL to stop it.
Remarks
Video-port related functions cannot be called from inside the EnumVideoCallbackfunction. Attempts to do so will fail, returning DDERR_CURRENTLYNOTAVAIL.
You can use the LPDDENUMVIDEOCALLBACKdata type to declare a variable that contains a pointer to this callback function.
Requirements
Runs on Versions Declared in Link to Windows CE OS 2.12 or later. Version 2.12 requires DXPAK 1.0 or later. ddraw.h user-defined