private int ShowHnd()
{
int err = -1;
MCI_DGV_WINDOW_PARMS whnd = new MCI_DGV_WINDOW_PARMS();
//if (hWndDisplay == IntPtr.Zero)
//return -1;
whnd.hWnd = (int)hWndDisplay;
if (showVideo)
whnd.nCmdShow = SW_SHOW;
else
whnd.nCmdShow = SW_HIDE;
if (deviceID > 0)
{
err = mciSendCommandA(deviceID, MCI_WINDOW, MCI_WAIT | MCI_ANIM_WINDOW_HWND | MCI_ANIM_WINDOW_STATE, ref whnd);
}
return err;
}
private static extern int mciSendCommandA(
Int32 wDeviceID,
UInt32 uMessage,
Int32 dwParam,
ref MCI_DGV_WINDOW_PARMS Any);
