ImDrawData*DrawData;// The ImDrawData corresponding to this viewport. Valid after Render() and until the next call to NewFrame().
void*RendererUserData;// void* to hold custom data structure for the renderer (e.g. swap chain, frame-buffers etc.)
void*PlatformUserData;// void* to hold custom data structure for the OS / platform (e.g. windowing info, render context)
void*PlatformHandle;// void* for FindViewportByPlatformHandle(). (e.g. suggested to use natural platform handle such as HWND, GlfwWindow*, SDL_Window*)
boolPlatformRequestClose;// Platform window requested closure (e.g. window was moved by the OS / host window manager, e.g. pressing ALT-F4)
boolPlatformRequestMove;// Platform window requested move (e.g. window was moved by the OS / host window manager, authoritative position will be OS window position)
boolPlatformRequestResize;// Platform window requested resize (e.g. window was resized by the OS / host window manager, authoritative size will be OS window size)
void*RendererUserData;// void* to hold custom data structure for the renderer (e.g. swap chain, frame-buffers etc.)