stream_url = "http://192.168.1.100/viewerframe?mode=refresh&exclusive"

If you encounter this setting in an application’s advanced options:

In Windows:
Exclusive mode is often automatic for true fullscreen (vs. borderless windowed). You can force it via:

In code (DirectX 11 example):

DXGI_SWAP_CHAIN_DESC desc;
desc.Windowed = FALSE; // Enables exclusive fullscreen
desc.BufferDesc.RefreshRate.Numerator = 60;
desc.BufferDesc.RefreshRate.Denominator = 1;
desc.SwapEffect = DXGI_SWAP_EFFECT_FLIP_DISCARD;

The viewerframe mode refresh exclusive command is used in certain contexts to control the behavior of a viewer frame, particularly in environments where multiple displays or views of the same data are presented. This command, in essence, instructs the viewer to refresh its content exclusively.

This is where the magic happens. "Refresh Exclusive" is a flag that, when applied to the ViewerFrame, instructs the graphics driver to take full, unimpeded control of the display output pipeline.

When you enabled ViewerFrame Mode Refresh Exclusive, you were essentially telling the GPU:

"Ignore the OS desktop. Ignore the window manager. Take this specific frame buffer, lock it to the monitor’s hardware tick, and do not allow any other application to write to the screen until I release control."

cap = cv2.VideoCapture(stream_url)

while True: ret, frame = cap.read() if not ret: print("Failed to grab frame") break

cv2.imshow('Legacy Camera Stream', frame)
if cv2.waitKey(1) & 0xFF == ord('q'):
    break

cap.release() cv2.destroyAllWindows()

If you are building a custom HTML page to display the camera feed, you would point an img tag to this URL.

<img src="http://192.168.1.100/viewerframe?mode=refresh&exclusive" alt="Live Feed" />