WM_CAP_DRIVER_GET_CAPS
The
WM_CAP_DRIVER_GET_CAPS message returns the hardware capabilities of the capture
driver currently connected to a capture
window. You can send this message explicitly or by using the capDriverGetCaps macro.
WM_CAP_DRIVER_GET_CAPS
wParam = (WPARAM) (wSize);
lParam = (LPARAM) (LPVOID) (LPCAPDRIVERCAPS)
(psCaps);
Parameters
wSize
Size, in
bytes, of the structure referenced by s.
psCaps
Address of
the CAPDRIVERCAPS
structure to contain the hardware capabilities.
Return Values
Returns TRUE
if successful or FALSE if the capture window is not connected to a capture
driver.
Remarks
The
capabilities returned in CAPDRIVERCAPS are constant for a given capture
driver. Applications need to retrieve this information once when the capture
driver is first connected to a capture window.
See Also