Looks like UWP builds were broken on 5.x:
```
C:\GHA-OCV-6\_work\opencv\opencv\opencv\modules\videoio\src\cap_winrt_capture.hpp(65,33): error C3646: 'size': unknown override specifier (compiling source file C:\GHA-OCV-6\_work\opencv\opencv\opencv\modules\videoio\src\cap_winrt_capture.cpp) [C:\GHA-OCV-6\_work\opencv\opencv\build\modules\videoio\opencv_videoio.vcxproj]
C:\GHA-OCV-6\_work\opencv\opencv\opencv\modules\videoio\src\cap_winrt_capture.hpp(65,37): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int (compiling source file C:\GHA-OCV-6\_work\opencv\opencv\opencv\modules\videoio\src\cap_winrt_capture.cpp) [C:\GHA-OCV-6\_work\opencv\opencv\build\modules\videoio\opencv_videoio.vcxproj]
C:\GHA-OCV-6\_work\opencv\opencv\opencv\modules\videoio\src\cap_winrt_capture.hpp(65,33): error C3646: 'size': unknown override specifier (compiling source file C:\GHA-OCV-6\_work\opencv\opencv\opencv\modules\videoio\src\videoio_registry.cpp) [C:\GHA-OCV-6\_work\opencv\opencv\build\modules\videoio\opencv_videoio.vcxproj]
C:\GHA-OCV-6\_work\opencv\opencv\opencv\modules\videoio\src\cap_winrt_capture.hpp(65,37): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int (compiling source file C:\GHA-OCV-6\_work\opencv\opencv\opencv\modules\videoio\src\videoio_registry.cpp) [C:\GHA-OCV-6\_work\opencv\opencv\build\modules\videoio\opencv_videoio.vcxproj]
C:\GHA-OCV-6\_work\opencv\opencv\opencv\modules\videoio\src\cap_winrt_capture.hpp(65,33): error C3646: 'size': unknown override specifier (compiling source file C:\GHA-OCV-6\_work\opencv\opencv\opencv\modules\videoio\src\cap_winrt_bridge.cpp) [C:\GHA-OCV-6\_work\opencv\opencv\build\modules\videoio\opencv_videoio.vcxproj]
C:\GHA-OCV-6\_work\opencv\opencv\opencv\modules\videoio\src\cap_winrt_capture.hpp(65,37): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int (compiling source file C:\GHA-OCV-6\_work\opencv\opencv\opencv\modules\videoio\src\cap_winrt_bridge.cpp) [C:\GHA-OCV-6\_work\opencv\opencv\build\modules\videoio\opencv_videoio.vcxproj]
C:\Program Files (x86)\Windows Kits\10\bin\10.0.19041.0\XamlCompiler\Microsoft.Windows.UI.Xaml.Common.targets(486,5): error MSB4181: The "CompileXaml" task returned false but did not log an error. [C:\GHA-OCV-6\_work\opencv\opencv\build\modules\videoio\opencv_videoio.vcxproj]
```
Notes:
- Pipeline passes even though there are errors in the build
- I decided to remove _highgui_ WinRT backend, because it uses C-API which is has been removed in 5.x. I believe nobody uses it anyway.
- Change in anneal library is caused by the issue in WinAPI header - it does not declare two functions for UWP, even though documentation states compatibility. See also https://github.com/openssl/openssl/pull/18311https://learn.microsoft.com/en-us/windows/win32/api/memoryapi/nf-memoryapi-virtuallock
> Minimum supported client Windows XP [desktop apps | UWP apps]
> Minimum supported server Windows Server 2003 [desktop apps | UWP apps]
Updated trackbar callback function and improved documentation #26524
This Fixes#26467
Description:
This pull request improve the OpenCV documentation regarding the Trackbar functionality. The current documentation does not provide clear guidance on certain aspects, such as handling the value pointer deprecation and utilizing callback arguments in C. This update addresses those gaps and provides an updated example for better clarity.
Changes:
Updated Documentation:
Clarified the usage of the value pointer and explained how to pass an initial value, since the value pointer is deprecated.
Added more detailed explanations about callback arguments in C, ensuring that users understand how to access and use them in Trackbar callbacks.
Added a note on how to properly handle initial value passing without relying on the deprecated value pointer.
Updated Tutorial Example:
Renamed and used callback function parameters to make them more understandable.
Included a demonstration on how to utilize userdata in the callback function.
Additional Notes:
Removed reliance on the value pointer for updating trackbar values. Users are now encouraged to use other mechanisms as per the current implementation to avoid the runtime warning.
### Pull Request Readiness Checklist
See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request
- [x] I agree to contribute to the project under Apache 2 License.
- [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV
- [x] The PR is proposed to the proper branch
- [x] There is a reference to the original bug report and related work
- [x] There is accuracy test, performance test and test data in opencv_extra repository, if applicable
Patch to opencv_extra has the same branch name.
- [] The feature is well documented and sample code can be built with the project CMake
Move API focused C++ samples to snippets #25252
Clean Samples #25006
This PR removes 39 outdated C++ samples from the project, as part of an effort to keep the codebase clean and focused on current best practices.
highgui: wayland: fix to pass highgui test #25551Close#25550
- optimize Mat to XRGB8888 conversion with OpenCV functions
- extend to support CV_8S/16U/16S/32F/64F
- extend to support 1/4 channels
- fix to update value timing
- initilize slider_ value if value is not nullptr.
- Update user-ptr value and call on_change() function if cv_wl_trackbar::draw() is not called.
- Update usage of WAYLAND/XDG macro to avoid reference undefined macro.
- Update documents
### Pull Request Readiness Checklist
See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request
- [x] I agree to contribute to the project under Apache 2 License.
- [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV
- [x] The PR is proposed to the proper branch
- [x] There is a reference to the original bug report and related work
- [x] There is accuracy test, performance test and test data in opencv_extra repository, if applicable
Patch to opencv_extra has the same branch name.
- [x] The feature is well documented and sample code can be built with the project CMake
Add cv::currentUIFramework #25354
issue https://github.com/opencv/opencv/issues/25329
### Pull Request Readiness Checklist
See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request
- [x] I agree to contribute to the project under Apache 2 License.
- [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV
- [ ] The PR is proposed to the proper branch
- [x] There is a reference to the original bug report and related work
- [ ] There is accuracy test, performance test and test data in opencv_extra repository, if applicable
Patch to opencv_extra has the same branch name.
- [x] The feature is well documented and sample code can be built with the project CMake
Documentation transition to fresh Doxygen #25042
* current Doxygen version is 1.10, but we will use 1.9.8 for now due to issue with snippets (https://github.com/doxygen/doxygen/pull/10584)
* Doxyfile adapted to new version
* MathJax updated to 3.x
* `@relates` instructions removed temporarily due to issue in Doxygen (to avoid warnings)
* refactored matx.hpp - extracted matx.inl.hpp
* opencv_contrib - https://github.com/opencv/opencv_contrib/pull/3638
Add scrollWheel to Cocoa #23394
### Pull Request Readiness Checklist
See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request
- [x] I agree to contribute to the project under Apache 2 License.
- [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV
- [ ] The PR is proposed to the proper branch
- [ ] There is a reference to the original bug report and related work
- [ ] There is accuracy test, performance test and test data in opencv_extra repository, if applicable
Patch to opencv_extra has the same branch name.
- [ ] The feature is well documented and sample code can be built with the project CMake
Added argument to print notice in `roiSelector.cpp`
Related Issue : https://github.com/opencv/opencv/issues/23175
I've added a printNotice argument to `selectROI` (and it's overload) and `selectROIs` functions.
I've also updated the function declarations in `highgui.hpp`.
Tested by building locally.
### Pull Request Readiness Checklist
See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request
- [x] I agree to contribute to the project under Apache 2 License.
- [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV
- [x] The PR is proposed to the proper branch
- [x] There is a reference to the original bug report and related work
- [ ] There is accuracy test, performance test and test data in opencv_extra repository, if applicable
Patch to opencv_extra has the same branch name.
- [x] The feature is well documented and sample code can be built with the project CMake
checks whether the window exists and is visible. On QT closing a window
merley hides it, so the common hack for checking whether a window exists
exists = cv2.getWindowProperty(.., 0) >= 0
does not work.
