cmake HAVE_WIN32UI examples

SsageParuders/Android_Native_Surface my_android_opencv/modules/highgui/cmake/detect_win32ui.cmake :4 

try_compile(HAVE_WIN32UI
    "${CMAKE_CURRENT_BINARY_DIR}"
    "${OpenCV_SOURCE_DIR}/cmake/checks/win32uitest.cpp"
    CMAKE_FLAGS "-DLINK_LIBRARIES:STRING=user32;gdi32")

joachimBurket/esp32-opencv cmake/OpenCVFindLibsGUI.cmake :8 

try_compile(HAVE_WIN32UI
    "${OpenCV_BINARY_DIR}"
    "${OpenCV_SOURCE_DIR}/cmake/checks/win32uitest.cpp"
    CMAKE_FLAGS "-DLINK_LIBRARIES:STRING=user32;gdi32")

joachimBurket/esp32-opencv modules/highgui/CMakeLists.txt :119 

elseif(HAVE_WIN32UI)

plumonito/dtslam 3rdparty/opencv-git/cmake/OpenCVFindLibsGUI.cmake :8 

try_compile(HAVE_WIN32UI
    "${OpenCV_BINARY_DIR}"
    "${OpenCV_SOURCE_DIR}/cmake/checks/win32uitest.cpp"
    CMAKE_FLAGS "-DLINK_LIBRARIES:STRING=user32;gdi32")

plumonito/dtslam 3rdparty/opencv-git/modules/highgui/CMakeLists.txt :69 

elseif(HAVE_WIN32UI)