Update for recent versions. C++11. Backends moved to backends/ folder. Renamed reference to SDL to SDL2.

backends/imgui_impl_dx10.cmake

@@ -0,0 +1,26 @@
+if (WIN32)
+    find_library (D3D10_LIBRARY "d3d10")
+    if (NOT D3D10_LIBRARY)
+        message (WARNING "IMGUI_IMPL_DX10 set to ON but d3d10.dll not found")
+    endif ()
+
+    find_library (DXGI_LIBRARY "dxgi")
+    if (NOT DXGI_LIBRARY)
+        message (WARNING "IMGUI_IMPL_DX10 set to ON but dxgi.dll not found")
+    endif ()
+
+    if (D3D10_LIBRARY AND DXGI_LIBRARY)
+        add_library (imgui-dx10 OBJECT
+            "${CMAKE_CURRENT_LIST_DIR}/imgui_impl_dx10.cpp"
+        )
+
+        target_link_libraries (imgui-dx10 PUBLIC
+            imgui
+            ${D3D10_LIBRARY} ${DXGI_LIBRARY}
+        )
+
+        target_include_directories (imgui-dx10 PUBLIC "${CMAKE_CURRENT_LIST_DIR}")
+    endif ()
+else ()
+    message (WARNING "IMGUI_IMPL_DX10 set to ON but platform is not Win32")
+endif ()

backends/imgui_impl_dx11.cmake

@@ -0,0 +1,26 @@
+if (WIN32)
+    find_library (D3D11_LIBRARY "d3d11")
+    if (NOT D3D11_LIBRARY)
+        message (WARNING "IMGUI_IMPL_DX11 set to ON but d3d11.dll not found")
+    endif ()
+
+    find_library (DXGI_LIBRARY "dxgi")
+    if (NOT DXGI_LIBRARY)
+        message (WARNING "IMGUI_IMPL_DX11 set to ON but dxgi.dll not found")
+    endif ()
+
+    if (D3D11_LIBRARY AND DXGI_LIBRARY)
+        add_library (imgui-dx11 OBJECT
+            "${CMAKE_CURRENT_LIST_DIR}/imgui_impl_dx11.cpp"
+        )
+
+        target_link_libraries (imgui-dx11 PUBLIC
+            imgui
+            ${D3D11_LIBRARY} ${DXGI_LIBRARY}
+        )
+
+        target_include_directories (imgui-dx11 PUBLIC "${CMAKE_CURRENT_LIST_DIR}")
+    endif ()
+else ()
+    message (WARNING "IMGUI_IMPL_DX11 set to ON but platform is not Win32")
+endif ()

backends/imgui_impl_dx12.cmake

@@ -0,0 +1,26 @@
+if (WIN32)
+    find_library (D3D12_LIBRARY "d3d12")
+    if (NOT D3D12_LIBRARY)
+        message (WARNING "IMGUI_IMPL_DX12 set to ON but d3d12.dll not found")
+    endif ()
+
+    find_library (DXGI_LIBRARY "dxgi")
+    if (NOT DXGI_LIBRARY)
+        message (WARNING "IMGUI_IMPL_DX12 set to ON but dxgi.dll not found")
+    endif ()
+
+    if (D3D12_LIBRARY AND DXGI_LIBRARY)
+        add_library (imgui-dx12 OBJECT
+            "${CMAKE_CURRENT_LIST_DIR}/imgui_impl_dx12.cpp"
+        )
+
+        target_link_libraries (imgui-dx12 PUBLIC
+            imgui
+            ${D3D12_LIBRARY} ${DXGI_LIBRARY}
+        )
+
+        target_include_directories (imgui-dx12 PUBLIC "${CMAKE_CURRENT_LIST_DIR}")
+    endif ()
+else ()
+    message (WARNING "IMGUI_IMPL_DX12 set to ON but platform is not Win32")
+endif ()

backends/imgui_impl_dx9.cmake

@@ -0,0 +1,19 @@
+if (WIN32)
+    find_library (D3D9_LIBRARY "d3d9")
+    if (D3D9_LIBRARY)
+        add_library (imgui-dx9 OBJECT
+            "${CMAKE_CURRENT_LIST_DIR}/imgui_impl_dx9.cpp"
+        )
+
+        target_link_libraries (imgui-dx9 PUBLIC
+            imgui
+            ${D3D9_LIBRARY}
+        )
+
+        target_include_directories (imgui-dx9 PUBLIC "${CMAKE_CURRENT_LIST_DIR}")
+    else ()
+        message (WARNING "IMGUI_IMPL_DX9 set to ON but d3d9.dll not found")
+    endif ()
+else ()
+    message (WARNING "IMGUI_IMPL_DX9 set to ON but platform is not Win32")
+endif ()

backends/imgui_impl_glfw.cmake

@@ -0,0 +1,14 @@
+if (NOT TARGET glfw)
+    find_package (GLFW3 QUIET)
+endif ()
+
+if (TARGET glfw OR GLFW3_DIR)
+    add_library (imgui-glfw OBJECT
+        "${CMAKE_CURRENT_LIST_DIR}/imgui_impl_glfw.cpp"
+    )
+
+    target_link_libraries (imgui-glfw PUBLIC imgui glfw)
+    target_include_directories (imgui-glfw PUBLIC "${CMAKE_CURRENT_LIST_DIR}")
+else ()
+    message (WARNING "IMGUI_IMPL_GLFW set to ON but glfw3 could not be located")
+endif ()

backends/imgui_impl_glut.cmake

@@ -0,0 +1,26 @@
+find_package (GLUT QUIET)
+
+if (GLUT_glut_LIBRARY)
+    add_library (imgui-glut OBJECT
+        "${CMAKE_CURRENT_LIST_DIR}/imgui_impl_glut.cpp"
+    )
+
+    target_link_libraries (imgui-glut PUBLIC
+        imgui
+        "${GLUT_glut_LIBRARY}"
+    )
+
+    if (APPLE)
+        target_link_libraries (imgui-glut PUBLIC
+            "${GLUT_cocoa_LIBRARY}"
+        )
+    endif ()
+
+    target_include_directories (imgui-glut PUBLIC "${CMAKE_CURRENT_LIST_DIR}")
+
+    target_include_directories (imgui-glut SYSTEM PUBLIC
+        "${GLUT_INCLUDE_DIR}"
+    )
+else ()
+    message (WARNING "IMGUI_IMPL_GLUT set to ON but GLUT could not be found")
+endif ()

backends/imgui_impl_metal.cmake

@@ -0,0 +1,19 @@
+if (APPLE)
+    add_library (imgui-metal OBJECT
+        "${CMAKE_CURRENT_LIST_DIR}/imgui_impl_metal.mm"
+    )
+
+    target_link_libraries (imgui-metal PUBLIC
+        imgui
+        "-framework Cocoa" "-framework Metal" "-framework QuartzCore"
+    )
+
+    target_include_directories (imgui-metal PUBLIC "${CMAKE_CURRENT_LIST_DIR}")
+
+    set_property (
+        TARGET imgui-metal
+        APPEND_STRING PROPERTY COMPILE_FLAGS "-fobjc-arc"
+    )
+else ()
+    message (WARNING "IMGUI_IMPL_METAL set to ON but platform is not Apple")
+endif ()

backends/imgui_impl_opengl.cmake

@@ -0,0 +1,19 @@
+find_package (OpenGL QUIET)
+
+if (OPENGL_gl_LIBRARY)
+    if (IMGUI_IMPL_OPENGL2)
+        add_library (imgui-opengl2 OBJECT
+            "${CMAKE_CURRENT_LIST_DIR}/imgui_impl_opengl2.cpp"
+        )
+
+        target_link_libraries (imgui-opengl2 PUBLIC
+            imgui
+            "${OPENGL_gl_LIBRARY}"
+        )
+
+        target_include_directories (imgui-opengl2 PUBLIC "${CMAKE_CURRENT_LIST_DIR}")
+        target_include_directories (imgui-opengl2 SYSTEM PUBLIC "${OPENGL_INCLUDE_DIR}")
+    endif ()
+else ()
+    message (WARNING "IMGUI_IMPL_OPENGL and/or IMGUI_IMPL_OPENGL2 set to ON but OpenGL could not be found")
+endif ()

backends/imgui_impl_osx.cmake

@@ -0,0 +1,15 @@
+if (APPLE)
+    add_library (imgui-osx OBJECT
+        "${CMAKE_CURRENT_LIST_DIR}/imgui_impl_osx.mm"
+    )
+
+    target_link_libraries (imgui-osx PUBLIC imgui "-framework Cocoa" "-framework AppKit")
+    target_include_directories (imgui-osx PUBLIC "${CMAKE_CURRENT_LIST_DIR}")
+
+    set_property (
+        TARGET imgui-osx
+        APPEND_STRING PROPERTY COMPILE_FLAGS "-fobjc-arc"
+    )
+else ()
+    message (WARNING "IMGUI_IMPL_OSX set to ON but platform is not Apple")
+endif ()

backends/imgui_impl_sdl2.cmake

@@ -0,0 +1,19 @@
+find_package (SDL2 QUIET)
+
+if (SDL2_DIR)
+    add_library (imgui-sdl2 OBJECT
+        "${CMAKE_CURRENT_LIST_DIR}/imgui_impl_sdl2.cpp"
+    )
+
+    target_link_libraries (imgui-sdl2 PUBLIC imgui sdl2)
+    target_include_directories (imgui-sdl2 PUBLIC "${CMAKE_CURRENT_LIST_DIR}")
+
+    # Fixes a strange inclusion problem on MacOS due to an unconventional
+    # SDL installation with Homebrew. Innocuous if SDL is being pulled in
+    # from somewhere else.
+    if (APPLE)
+        target_include_directories (imgui-sdl2 SYSTEM PUBLIC "/usr/local/include/SDL2")
+    endif ()
+else ()
+    message (WARNING "IMGUI_IMPL_SDL2 set to ON but SDL2 not found on system or in project")
+endif ()

backends/imgui_impl_win32.cmake

@@ -0,0 +1,11 @@
+if (WIN32)
+    add_library (imgui-win32 OBJECT
+        "${CMAKE_CURRENT_LIST_DIR}/imgui_impl_win32.cpp"
+    )
+
+    target_link_libraries (imgui-win32 PUBLIC imgui)
+
+    target_include_directories (imgui-win32 PUBLIC "${CMAKE_CURRENT_LIST_DIR}")
+else ()
+    message (WARNING "IMGUI_IMPL_WIN32 set to ON but platform is not Win32")
+endif ()