Examples: Formatting #187

set pixel shader and vertex shader to NULL ...

Previous graphic render may use shaders,so set pixel shader and vertex shader to NULL to force use fixed pipeline.

Examples: initializing float + missing comment.

Comments on font loading, fixed commented out paths and added DroidSans in the list

Examples: uses SetNextWindowPos/SetNextWindowSize when applicable

Examples: DirectX9: fixed duplicate creation of vertex buffer. Size of static vertex buffer at top of the code.

Examples: Fixed Clang warnings in DirectX examples

Examples: MSVC: increase warning level from /W3 to /W4 for OpenGL examples

Examples: MSVC: increase warning level from /W3 to /W4 for DirectX examples

Examples: Fix includes order to avoid conflicts between DXSDK_DIR and Windows SDK

Examples: Added 64-bit projects for MSVC

Added io.KeyAlt + support in examples apps ...

Currently unused but supported by sample so that more people will have
it set up when menus needs them

Examples: reference implementations honors drawlist user callbacks.

Examples: DirectX9 example cleanup to match DirectX11 structure.

Examples: DirectX9 example application handle window resizing.

Examples: Refactored directx11_example to be easier to copy & paste into user application.

Examples: Tweaks.

Examples: Refactored directx9_example to be eaasier to copy & paste into user application.

Examples: DirectX examples uses WM_KEYDOWN/WM_KEYUP ...

Fixes pressing Enter in IME being caught by application right after
validating an IME input.

Windows: setup a default handler for ImeSetInputScreenPosFn so IME (Japanese/Chinese) inputs are positioned correctly. ...

User need to set io.ImeWindowHandle

Examples: Windows examples don't link with imm32.lib by default.

Renamed ImGuiSetCondition_*** to ImGuiSetCond_*** and ImGuiCondition_FirstUseThisSession to ImGuiCond_Once

Examples: msvc: output .exe in project directory (not in solution directory).

Examples: DirectX examples applications all have a Console for debugging.

Calculate frame-rate for the user, as a purely luxurious feature ...

..and to reduce sample code size a little.

Minor formatting tweaks, comments

Examples: changed default background color.

Warning fixes for 64-bit architectures

Examples: more comments on loading fonts.

Renamed FontAtlas to Fonts. Further cleanup/comments.