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windowsdl-2setfocus
QuickGrip
QuickGrip

Reputation: 143

SDL2 Raising a window without giving it focus

I need to display a tooltip over a window. I'm creating a second window with the tool tip and using SDL_RaiseWindow() to bring it to the top. However, doing that causes the tooltip to steal focus which is not what I want. Is there a way to bring a window to the top without changing focus?

Also, is there a way to set focus (mouse and/or keyboard) without changing the Z order of the windows?

Upvotes: 3

Views: 4090

Answers (3)

Okko Hakola
Okko Hakola

Reputation: 1

I got this working sufficiently for my tooltips on mac by using SDL_WINDOW_ALWAYS_ON_TOP flag with SDL2:

SDL_CreateWindow(tooltip_window->name, x, y, w, h,
    SDL_WINDOW_OPENGL | SDL_WINDOW_BORDERLESS |
    SDL_WINDOW_ALWAYS_ON_TOP);
SDL_RaiseWindow(windowThatShouldHaveFocus);
// ...render what you want on that tooltip (SDL_RenderClear, SDL_RenderCopy, SDL_RenderPresent) & hide it with SDL_HideWindow

And when showing the tooltip:

SDL_ShowWindow(tooltipWindow);
SDL_RaiseWindow(windowThatShouldHaveFocus);

Upvotes: 0

GermanNerd
GermanNerd

Reputation: 653

The answer offered by Neil will only work under X11 as SDL_SetWindowInputFocus() is only implemented for that environment. In essence, the desired behaviour is otherwise not achievable. I have seen that there is a feature request in the SDL forums for an overload of the SDL_RaiseWindow() function to include an optional bool parameter to indicate if the raised window should also receive the input focus, or not. I hope they do implement that.

In any case, the support for multiple windows under SDL 2.x is a little weak. There is no built in support for the Z-order of different windows, and trying to build one based on the "painter's method" works, but leaves one no control over the input focus.

Upvotes: 1

Neil Roy
Neil Roy

Reputation: 622

Old question, but this came up during my own search. You could try SDL_RaiseWindow() to bring your tooltip to the top, then use SDL_SetWindowInputFocus() on the main window to switch focus back to it.

Upvotes: 0

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