About keyboard support in MDI applications
PowerBuilder MDI applications automatically support arrow keys
and shortcut keys.
Arrow keys
In an MDI frame, how the pointer moves when the user presses
an arrow key depends on where focus is when the key is pressed:
| Key | If focus is in | Focus moves to |
|---|---|---|
| Left | The menu bar | The menu item to the left of the item that has focus |
| The first menu bar item | The control menu of the active sheet | |
| The control menu of the active sheet | The control menu of the frame | |
| The control menu of the frame | The last menu item | |
| Right | The menu bar | The menu item to the right of the item that has focus |
| The last menu bar item | The control menu of the frame | |
| The control menu of the frame | The control menu of the active sheet | |
| The control menu of the active sheet | The first item in the menu bar | |
| Down | A dropdown or cascading menu | The menu item below the current item |
| The last menu item in the dropdown or cascading menu |
The first item in the menu | |
| Up | A dropdown or cascading menu | The menu item above the current item |
| The first menu item in a dropdown or cascading menu |
The last item in the menu |
Shortcut keys
PowerBuilder automatically assigns every MDI frame two shortcut
keys:
| Key | Use to |
|---|---|
| ctrl+f4 | Close the active sheet and make the previous sheet active. The previous sheet is the sheet that was active immediately before the sheet that was closed |
| ctrl+f6 | Make the previous sheet the active sheet |
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