cmake HELLOIMGUI_HAS_OPENGL3 examples

pthom/hello_imgui CMakeLists.txt :90

option(HELLOIMGUI_HAS_OPENGL3 "Use OpenGL3 as a rendering backend" OFF)

pthom/hello_imgui hello_imgui_cmake/hello_imgui_build_lib.cmake :52

message(WARNING "
        HELLOIMGUI_USE_SDL_OPENGL3 is deprecated,
        use HELLOIMGUI_USE_SDL2 + HELLOIMGUI_HAS_OPENGL3 instead")

pthom/hello_imgui hello_imgui_cmake/hello_imgui_build_lib.cmake :59

message(WARNING "
        HELLOIMGUI_USE_GLFW_OPENGL3 is deprecated,
        use HELLOIMGUI_USE_GLFW3 + HELLOIMGUI_HAS_OPENGL3 instead")

pthom/hello_imgui hello_imgui_cmake/hello_imgui_build_lib.cmake :121

message(WARNING "
        HELLOIMGUI_WITH_SDL is deprecated,
        use HELLOIMGUI_USE_SDL2 + HELLOIMGUI_HAS_OPENGL3 instead")

pthom/hello_imgui hello_imgui_cmake/hello_imgui_build_lib.cmake :128

message(WARNING "
        HELLOIMGUI_WITH_GLFW is deprecated,
        use HELLOIMGUI_USE_GLFW3 + HELLOIMGUI_HAS_OPENGL3 instead")

pthom/hello_imgui hello_imgui_cmake/hello_imgui_build_lib.cmake :600

message(STATUS "HelloImGui: using HELLOIMGUI_USE_GLFW3 + HELLOIMGUI_HAS_OPENGL3 as default backend combination")

pthom/hello_imgui hello_imgui_cmake/hello_imgui_build_lib.cmake :607

message(STATUS
                "HelloImGui: using HELLOIMGUI_USE_GLFW3 + HELLOIMGUI_HAS_OPENGL3 as default backend combination (glfw was found via find_package(glfw3))
                ")

pthom/hello_imgui hello_imgui_cmake/hello_imgui_build_lib.cmake :779

target_compile_definitions(${HELLOIMGUI_TARGET} PUBLIC HELLOIMGUI_HAS_OPENGL3)

pthom/hello_imgui src/hello_imgui_remote/netimgui_remote_display/CMakeLists.txt :5

message(FATAL_ERROR "HELLOIMGUI_HAS_OPENGL3 is not enabled, and required for hello_imgui_remote_display")