135SDK (Software development Kit)
© 2010 Thorlabs
//------------------------------------
// Display
//------------------------------------
// Show overlay
is_DirectRenderer (hCam, DR_SHOW_OVERLAY, NULL, NULL);
// Hide overlay
is_DirectRenderer (hCam, DR_HIDE_OVERLAY, NULL, NULL);
//------------------------------------
// Scaling
//------------------------------------
// Enable scaling
is_DirectRenderer (hCam, DR_ENABLE_SCALING, NULL, NULL);
// Disable scaling
is_DirectRenderer (hCam, DR_DISABLE_SCALING, NULL, NULL);
//------------------------------------
// Transparency
//------------------------------------
// Enable semi-transparent overlay
is_DirectRenderer (hCam, DR_ENABLE_SEMI_TRANSPARENT_OVERLAY, NULL, NULL);
// Disable semi-transparent overlay
is_DirectRenderer (hCam, DR_DISABLE_SEMI_TRANSPARENT_OVERLAY, NULL, NULL);