The EnumVideoCallback function is an application-defined callback procedure for the IDDVideoPortContainer::EnumVideoPorts method.
HRESULT WINAPI EnumVideoCallback(
LPDDVIDEOPORTCAPS lpDDVideoPortCaps,
LPVOID lpContext
);
Parameters
lpDDVideoPortCaps
Pointer to the DDVIDEOPORTCAPS structure 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 EnumVideoCallback function. Attempts to do so will fail, returning DDERR_CURRENTLYNOTAVAIL.
You can use the LPDDENUMVIDEOCALLBACK data type to declare a variable that can contain a pointer to this callback function.
QuickInfo
Windows NT: Use version 5.0 or later.
Windows: Use Windows 95 or later. Available as a redistributable for Windows 95.
Windows CE: Unsupported.
Header: Declared in ddraw.h.
Import Library: User-defined.