Easily add pop-up dialogs to your game or software.
Why to use this and not the "show_message()" function?
If in full screen, "show_message()" function will minimize the game window (this asset will not minimize it).
You can adapt this to your game's style.
Pop-up dialogs with text and an "next" or "ok" button.
Pop-up dialogs with a question and "yes" and "no" buttons.
You can assign a function to the "yes" button.
You can change the style (sprite, font, ect.).
It's quick and easy to use.
Now it's possible to use the pop ups with keyboard.
Improved code slightly.