Processes each vector object enumerated by the L_VecEnumObjects or L_VecEnumObjectsInLayer functions.
L_INT pEXT_CALLBACK YourFunction (pVector, pObject, pUserData)
Pointer to the vector image containing the objects to enumerate.
Pointer to the vector object being processed.
A void pointer that you can use to access a variable or structure containing data that your callback function needs. This gives you a way to receive data indirectly from the function that uses this callback function. (This is the same pointer that you pass in the pUserData parameter of the calling function.)
Keep in mind that this is a void pointer, which must be cast to the appropriate data type within your callback function.
|SUCCESS||The function was successful.|
|< 1||An error occurred. Refer to Return Codes.|
The L_VecEnumObjects function or the L_VecEnumObjectsInLayer function calls your callback function as it gets the handle of each vector object.
For an example, refer to L_VecEnumObjects.
Direct Show .NET | C API | Filters
Media Foundation .NET | C API | Transforms