WM_CAP_GET_USER_DATA message
The WM_CAP_GET_USER_DATA message retrieves a LONG_PTR data value associated with a capture window. You can send this message explicitly or by using the capGetUserData macro.
WM_CAP_GET_USER_DATA
wParam = (WPARAM) 0;
lParam = 0L;
Return Value
Returns a value previously saved by using the WM_CAP_SET_USER_DATA message.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows 2000 Professional [desktop apps only] |
| Minimum supported server |
Windows 2000 Server [desktop apps only] |
| Header |
|