Enumerates all objects inside a vector handle.
L_LVKRN_API L_INT L_VecEnumObjects(pVector, pEnumProc, pUserData, dwFlags)
Pointer to a vector handle. The objects within this vector handle will be enumerated.
Pointer to the callback function used to enumerate the vertices within the vector handle. The callback function must adhere to the function prototype described in VECTORENUMOBJECTSPROC.
Void pointer that you can use to pass one or more additional parameters that the callback function needs.
o use this feature, assign a value to a variable or create a structure that contains as many fields as you need. Then, in this parameter, pass the address of the variable or structure, casting it to L_VOID *. The callback function, which receives the address in its own pUserData parameter, can cast it to a pointer of the appropriate data type to access your variable or structure. f the additional parameters are not needed, you can pass NULL in this parameter.
Flag that indicates which objects to enumerate. Possible values are:
|0||Enumerate all objects within the vector handle.|
|VECTOR_FLAGS_SELECTED_ONLY||Enumerate only the selected objects within the vector handle.|
|SUCCESS||The function was successful.|
|< 1||An error occurred. Refer to Return Codes.|
For an example, refer to L_VecIsObjectInsideRect.
Direct Show .NET | C API | Filters
Media Foundation .NET | C API | Transforms