About keyboard support in MDI applications

PowerBuilder MDI applications automatically support arrow keys and shortcut 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:

**Table 5-2: Arrow key focus changes**
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 drop-down or cascading menu	The menu item below the current item
Down	The last menu item in the drop-down or cascading menu	The first item in the menu
Up	A drop-down or cascading menu	The menu item above the current item
Up	The first menu item in a drop-down or cascading menu	The last item in the menu

PowerBuilder automatically assigns two shortcut keys to every MDI frame:

**Table 5-3: MDI frame 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.