ImVec2SetWindowPosPivot;// store window pivot for positioning. ImVec2(0,0) when positioning from top-left corner; ImVec2(0.5f,0.5f) for centering; ImVec2(1,1) for bottom right.
ImGuiIDNavLastIds[2];// Last known NavId for this window, per layer (0/1)
ImRectNavRectRel[2];// Reference rectangle, in window space
ImRectNavRectRel[2];// Reference rectangle, in window relative space
ImGuiDrawContextDC;// Temporary per-window data, reset at the beginning of the frame
ImVector<ImGuiID>IDStack;// ID stack. ID are hashes seeded with the value at the top of the stack