Windows
We should always have a CurrentWindow in the stack (there is an implicit "Debug" window)
If this ever crashes because g.CurrentWindow is NULL, it means that either:
ImGui::NewFrame() has never been called, which is illegal.
You are calling ImGui functions after ImGui::EndFrame()/ImGui::Render() and before the next ImGui::NewFrame(), which is also illegal.
Windows We should always have a CurrentWindow in the stack (there is an implicit "Debug" window) If this ever crashes because g.CurrentWindow is NULL, it means that either: ImGui::NewFrame() has never been called, which is illegal. You are calling ImGui functions after ImGui::EndFrame()/ImGui::Render() and before the next ImGui::NewFrame(), which is also illegal.