How to catch system keys

PBasic · Post by **PBasic** » Mon Aug 13, 2007 12:12 pm

I saw KeyboardInkey() returns the last typed character, but I want my program to react when I press Alt, Shift, F1->F12, Ctrl etc...
How do I do that?
Thanks.

Fluid Byte · Post by **Fluid Byte** » Mon Aug 13, 2007 12:18 pm

Have a look under "Keyboard" in the docs.

Kaeru Gaman · Post by **Kaeru Gaman** » Mon Aug 13, 2007 12:45 pm

mind that the keyboard-lib is for screen-apps only.

gnozal · Post by **gnozal** » Mon Aug 13, 2007 12:48 pm

The keyboard library uses Direct-X iirc.
If you don't need / want it, you may have a look at GetAsyncKeyState_() (Windows API).

Kaeru Gaman · Post by **Kaeru Gaman** » Mon Aug 13, 2007 1:10 pm

if you want only a few single keys for use in a win-app, you can also go via HotKeys...

so you see, it would be good to have hints what your aim is...

netmaestro · Post by **netmaestro** » Tue Aug 14, 2007 5:12 am

If you're making a gui (window with gadgets) and you're processing the keypresses while your program is focused, probably the best way is to use AddKeyboardShortCut():

Code: Select all

#ControlF5 = 1

OpenWindow(0,0,0,320,240,"Keyboard Shortcut Demo",#PB_Window_ScreenCentered|#PB_Window_SystemMenu)
CreateGadgetList(WindowID(0))
; add gadgets here

AddKeyboardShortcut(0, #PB_Shortcut_Control|#PB_Shortcut_F5, #ControlF5)

Repeat
  EventID = WaitWindowEvent()
  Select EventID
    Case #PB_Event_Menu
      Select EventMenu()
        Case #ControlF5
          Debug "You pressed Control-F5!"
      EndSelect
  EndSelect
Until EventID = #PB_Event_CloseWindow