Hi, hope I did not miss anything, but as far as I can tell this was not discussed yet (in this decade at least):

The library supports file input dialogs (SDL_ShowFileDialogWithProperties) and message boxes (SDL_ShowSimpleMessageBox) but there is no way to ask for input with any kind of dialog.

(most common would likely be some kind of credential dialog or some URL)

Is that something that can/will be implemented in the library or is it one of the out of scope things?