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Screen events

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Will McGugan
2024-06-06 19:30:50 +01:00
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docs/guide/screens.md
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@@ -128,6 +128,7 @@ Like [pop_screen](#pop-screen), if the screen being replaced is not installed it
You can also switch screens with the `"app.switch_screen"` action which accepts the name of the screen to switch to.
## Screen opacity
If a screen has a background color with an *alpha* component, then the background color will be blended with the screen beneath it.
@@ -355,3 +356,12 @@ One for a dashboard, one for settings, and one for help.
We've bound keys to each of these screens, so the user can switch between the screens.
Pressing ++d++, ++s++, or ++h++ switches between these modes.
## Screen events
Textual will send a [ScreenSuspend](../events/screen_suspend.md) event to screens that have become inactive due to another screen being pushed, or switching via a mode.
When a screen becomes active, Textual will send a [ScreenResume](../events/screen_resume.md) event to the newly active screen.
These events can be useful if you want to disable processing for a screen that is no longer visible, for example.