imgui_impl_opengl3.cpp Using GLES3 on IOS instead of gl3w. (#2002, #1873) ...

Not modifying the main.cpp yet because we need to test GL ES 3 context creation on iOS (only imgui_impl_opengl3.cpp was tested).

Examples: OpenGL2: Disabling/restoring GL_LIGHTING and GL_COLOR_MATERIAL to increase compatibility with legacy OpenGL applications. (#1996)

Changelog for #1989

imgui_impl_dx11: Using ID3D11Factory instead of ID3D11Factory1 (#1989)

imgui_impl_glfw, imgui_impl_sdl: Workaround for Emscripten which doesn't seem to handle focus related calls. (#1941)

Added Visual Studio 2017+ build cruft to Ignore List (.vs/ folder)

imgui_impl_opengl3: Comments. (#1987)

Examples: imgui_impl_opengl3.cpp Using #ifdef GL_SAMPLER_BINDING instead of if (glBindSampler) (#1985)

Examples: imgui_impl_osx: Fix for incorrect DeltaTime calculation on mac OS. (#1978)

Examples: OpenGL3: Tweaks, added changelog. (#1941)

Examples; imgui_impl_opengl3.cpp to work with Emscripten (#1941) ...

* Add some ifdefs to add emscripten specific params and includes

* Update imgui_impl_opengl3.cpp

* Update imgui_impl_opengl3.cpp

* Update imgui_impl_opengl3.cpp

* replace __EMSCRIPTEN_BUILD__ with __EMSCRIPTEN__

* replace GLFW_INCLUDE_ES3 with direct header

* removing useless glfw include

* Making call to glPolygonMode() optional

Examples: Using fully qualified "Dear ImGui" name in window titles.

Examples: SDL: Removed SDL_HAS_WARP_MOUSE_GLOBAL in the non-viewport branch. (#1954) (+1 squashed commits)

Examples: Tweaked the main.cpp example structure for all examples. (There are a few hidden agendas here: 1) I would like to avoid encouraging people from using the implicit "Debug" window, and promote using Begin/End. In spite of my best attempt, there are a few feature of the upcoming docking system that cannot work 100% properly for the implicit Debug window, so future proof let's not put that feature in the spotlight too much for new users. 2) Moved dumb hardcoded positions into a single spot that can be replaced with a viewport relative position and not affect other demo windows. 3) Calling ShowDemoWindow before anything else, also for the benefit of a specific docking demo which will have an ordering constraint which is not really problematic in a real app but shouldn't be put forward in the demo.

Examples: DX10, DX11: Fixed unreleased resources in Init and Shutdown functions. (#1944)

Examples: include for intptr_t on tdm-gcc + mingw32 (#1936) + mouse buttons comments

Examples: OpenGL3: Added shaders more versions of GLSL + made the example app default to GL 3.0 + GLSL 130 (instead of GL 3.2 + GLSL 150) unless on Mac. (#1938, #1900, #1513, #1466, etc.)

OpenGL3: Added error output when shaders fail to compile / link. (#1938)

Examples: Comments, Demo: Log early out, TODO. (#1553)

Examples: Comments + shallow coding convention tweak to be consistent across examples and with imgui_impl_osx

Examples: Removed old example_apple/ + tweak comments (#1873)

Merge branch 'warrenm_osx'

Apple: Fixed example_osx_opengl2, renamed to example_apple_opengl2 + misc comments

Introduced a new Metal renderer implementation and a new example illustrating usage of Metal on macOS and iOS (partially addresses #1873)

Examples: Comments, bits of documentation

OSX: Various tweaks to imgui_impl_osx courtesy of @warrenm + fix NewFrame position which has been moved recently master. (#1873)

Merge branch 'master' into osx ...

# Conflicts:
#	examples/.gitignore
#	examples/README.txt

Ignore list: added emscripten output

Examples: Ignore all *.user files (#1919) ...

For example `Qt Creator` create `CMakeLists.txt.user` file with user settings.

Examples: Comments to clarify how the keyboard data is indexed.