Win32 API Keyboard events

JBowe · #1 29-Feb-2004, 20:15

I'm creating an openGL-based pong program and I want to do the keyboard detection with the win32 API.

What are the events for it? I don't have any experience w/ keyboard input on C++ other than cin, sooo any help would be appreciated.

dsmith · #2 29-Feb-2004, 20:53

Hi JBowe. Welcome to GIDForums.

Do you have the conio library with your compiler? If so, there should be a function called kbhit() included that may help. It will return a 0 until a key is hit and then it will return that keyhit.

I am not sure if this is what you are looking for or not. It is not strictly a Windows API but is pretty simple if it works for you.

WaltP · #3 01-Mar-2004, 02:27

Quote:

Originally Posted by JBowe

I'm creating an openGL-based pong program and I want to do the keyboard detection with the win32 API.

What are the events for it? I don't have any experience w/ keyboard input on C++ other than cin, sooo any help would be appreciated.

Windows API information can be found at
http://msdn.microsoft.com/library/de...y_category.asp

davekw7x · #4 01-Mar-2004, 16:43

If you are using bare-bones Win32 API, I think you need something like
WM_CHAR.

In your WinMain() function, you probably have a loop with something like
the following:

CPP / C++ / C Code:

 while(GetMessage(&messages, NULL, 0, 0))
    {
           /* Send message to WindowProcedure */
           TranslateMessage(&messages);
           DispatchMessage(&messages);
    }

then in your CALLBACK WindowProcedure(), there is a switch:

CPP / C++ / C Code:

  switch(message) {
//
    case WM_DESTROY:
//
    case WM_CLOSE:
//
//  lots of other cases, probably, and somewhere there is a

     case WM_CHAR:
        // here's where you handle the character.
        // wParam is the integer corresponding to the key that was pressed.

  }
  return 0;

More information probably should come from a windows programming
group.

Dave

davekw7x · #5 04-Mar-2004, 12:03

Seeing no response, I will post my own followup:

Your question is more about Windows programming than about C or C++ programming. This forum has lots of people willing to answer C and/or C++ questions (and to give advice from lots of different points of view). Windows programming is a whole 'nother topic.

For more information about keyboard input in a Windows API application, you can go to http://msdn.microsoft.com, enter keyboard input in the search window, click go and enjoy!

Regards,

Dave

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