WM_CAP_GET_STATUS
The
WM_CAP_GET_STATUS message retrieves the status of the capture window. You can
send this message explicitly or by using the capGetStatus macro.
WM_CAP_GET_STATUS
wParam = (WPARAM) (wSize);
lParam = (LPARAM) (LPVOID) (LPCAPSTATUS) (s);
Parameters
wSize
Size, in
bytes, of the structure referenced by s.
s
Address of a CAPSTATUS structure.
Return Values
Returns TRUE
if successful or FALSE if the capture window is not connected to a capture
driver.
Remarks
The CAPSTATUS
structure contains the current state of the capture window. Since this state is
dynamic and changes in response to various messages, the application should
initialize this structure after sending the WM_CAP_DLG_VIDEOFORMAT message (or
using the capDlgVideoFormat macro) and whenever it needs to enable menu
items or determine the actual state of the window.
See Also