InputText is invalid when create a second frame.

[kindred77]

Version/Branch of Dear ImGui:

Branch: master

Back-ends:

imgui_impl_sdl2.cpp+imgui_impl_sdlrenderer2.cpp

Compiler, OS:

windows11 + mingw64

Full config/build information:

No response

Details:

I imported imgui into my game app on windows 11, thanks very much for you guys' great work.
I found the InputText will be invalid when create a second frame.
It just show there with no cursor blink and can not edit, like turned to be readonly.
I am not sure it is a bug, or imgui can create only one frame.

Screenshots/Video:

No response

Minimal, Complete and Verifiable Example code:

//new a frame and create my InputText
ImGui_NewFrame();
ImGui_Begin();
InputTextWithHint(xxx);
ImGui_End();
//close the frame and render
ImGui_ImplSDLRenderer2_RenderDrawData(ImGui::GetDrawData(), renderer);
//create another frame, the InputText is shown but can not focus and edit.
ImGui_NewFrame();
ImGui_EndFrame();

[GamingMinds-DanielC]

Why the second frame, especially an empty one? Frames need to be continuous. The interaction with widgets happens mostly between frames. If you don't submit a widget for a frame, it cannot hold focus or do anything basically. That's expected behavior, not a bug.

Your example code is not valid (it wouldn't compile when pasted into a test application) and leaves a few questions open. Are you using a wrapper? The functions of the C++ interface are in a namespace, they don't use an ImGui_ prefix. Also Begin() has no default value for its first parameter, the window title. If you are using a wrapper and that has a default, maybe what you are trying to make is a second window, not a second frame. You would have to submit the second window within the same frame.