OpenCV displayStatusBar_0

displayStatusBar_0 wraps cv2.displayStatusBar(winname, text, delayms) - an OpenCV HighGUI function that writes a line of text into the status bar of a named desktop window for a few milliseconds. Same family as displayOverlay_0 and destroyWindow_0: a desktop-GUI call that got swept into the opencv-comfyui auto-generator because it's a top-level cv2 function, not because anyone in the ComfyUI image-generation world was asking for it.

The hard truth about this whole family: it's dead weight in a server-side tool. OpenCV's HighGUI functions assume a window exists - one created by cv2.namedWindow() or cv2.imshow() on a machine with a display and an event loop. Your ComfyUI backend is frequently headless, and even when it isn't, generation output goes to the browser, not to native windows. There's no window, there's no status bar, there's nothing to write into. On most builds the call is a silent no-op when the window is missing, so it won't throw - it'll just produce zero observable effect. There's a reason there's no community chatter about these nodes: nobody's reaching for them.

Inputs: winname (STRING, the window title), text (STRING, the status line), delayms (INT, display duration in milliseconds). Output: None, labeled unknown - nothing wires downstream. It's a pure side effect, and in this environment the side effect doesn't happen.

If you're being charitable, the use case is identical to displayOverlay_0's: a local, display-equipped machine where you already have a live OpenCV preview window (say, a camera or video-processing chain using imshow) and you want frame counters or progress text in its status bar. That's a legit workflow if you're building a custom video pipeline inside ComfyUI on a desktop. It's also a vanishingly small fraction of users, and it requires machinery this pack doesn't provide - nothing here creates windows.

Install: it ships with geroldmeisinger/opencv-comfyui:

cd ComfyUI/custom_nodes
git clone https://github.com/geroldmeisinger/opencv-comfyui

or ComfyUI Manager → search "OpenCV", restart. Needs opencv-contrib-python; the pack-wide Cannot import name 'guidedFilter' from 'cv2.ximgproc' conflict error will stop the whole pack from loading if you have duplicate OpenCV wheels.

Honest call: skip it. If you find yourself needing on-image text for your actual generated frames, that's a drawing operation on pixels, not a HighGUI status bar - and this node is not the tool for that either.