protected override void DoShowCursor(bool show)
{
if (isVideoAvailable && videoWindow != null)
{
int hidden = (show) ? (int)OABool.False : (int)OABool.True;
int hr = videoWindow.HideCursor(hidden);
DsError.ThrowExceptionForHR(hr);
}
}
////////////////
/// IsCursorHidden/HideCursor
private void TestCursor()
{
int hr;
OABool HideCursor1, HideCursor2;
// Read the current value
hr = m_ivw.IsCursorHidden(out HideCursor1);
Marshal.ThrowExceptionForHR(hr);
// Change it
hr = m_ivw.HideCursor(~HideCursor1);
Marshal.ThrowExceptionForHR(hr);
// Re-read
hr = m_ivw.IsCursorHidden(out HideCursor2);
Marshal.ThrowExceptionForHR(hr);
// Make sure the value we set is what we just read
Debug.Assert(HideCursor1 != HideCursor2, "IsCursorHidden/HideCursor");
// Try it the other way
// Read the current value
hr = m_ivw.IsCursorHidden(out HideCursor1);
Marshal.ThrowExceptionForHR(hr);
// Change it
hr = m_ivw.HideCursor(~HideCursor1);
Marshal.ThrowExceptionForHR(hr);
// Re-read
hr = m_ivw.IsCursorHidden(out HideCursor2);
Marshal.ThrowExceptionForHR(hr);
// Make sure the value we set is what we just read
Debug.Assert(HideCursor1 != HideCursor2, "IsCursorHidden/HideCursor");
}