🔒 Locked

Delphi - Keyboard Buffer

Started by hpesoj Dec 10, 2005 at 6:29 AM 2 replies 2.3k views

Original Post

Dec 10, 2005 at 6:29 AM

I am trying to make a function that returns a string of the characters for all the keyboard keys pressed since the last time the function was called. Maybe there is already such a function, but I haven't found it. My question is how would I detect which character keys have been pressed? It is a seemingly simple question, but I have looked everywhere and all I can find is the OnKeyPress function, which seems to be part of a windows control, which is not what I want.

hpesoj

Author

hpesoj

Dec 11, 2005 at 11:39 AM

Bump. Any ideas anyone? I'm really quite stuck with this.

mikeman

545

mikeman

Dec 11, 2005 at 12:00 PM

It's not related to Delphi really, but the Win32 API function GetAsyncKeyState() does exactly that, for one key of course(you'll have to create the buffer yourself and fill it with multiple calls to the function). GetKeyBoardState OTOH handles it all, all you've got to do is pass the buffer and it will copy the status of the 256 virtual keys to it.

You could always also try using a library for your input needs, like DX or SDL.

hpesoj

Author

hpesoj

Dec 12, 2005 at 9:49 AM

Ta muchly. Exactly what I needed. I also seem to remember using sdl in the past, but I need as much flexibility as possible so GetAsyncKeyState seems to do the job. Cheers.

Topic Locked

This topic has been locked by a moderator. New replies are not allowed.