Thebinary110 8308fbf9ba highgui: expose saveWindowParameters and loadWindowParameters to Python ...

Both functions persist/restore a window's size, position, flags,
trackbar values, and zoom/pan state (Qt highgui backend only), take
only a plain String argument, and were already fully documented -- but
were declared CV_EXPORTS instead of CV_EXPORTS_W, so they were
unreachable from Python.

Sibling Qt-only functions in the same header (displayOverlay,
displayStatusBar) already follow the CV_EXPORTS_W + runtime
"not implemented without Qt" convention this change follows.

Adds a Python test that exercises namedWindow + save/loadWindowParameters
and gracefully skips when no GUI backend or no Qt support is present,
consistent with how other environment-dependent tests in this suite
(e.g. CUDA) skip rather than fail.

Verified locally: built opencv_python3 from this branch (WITH_QT=OFF)
and confirmed cv2.saveWindowParameters / cv2.loadWindowParameters are
present on the built module and correctly raise the expected
"compiled without QT support" error, proving the binding reaches the
C++ layer end-to-end.

2026-07-24 05:19:08 +05:30

..

opencv2

highgui: expose saveWindowParameters and loadWindowParameters to Python

2026-07-24 05:19:08 +05:30