Simple keyboard input

**Da-Nuka** · 02-12-2005

Hi.
I am trying to make a simple keyboard input with Win32API!
I want to record the keyboard input to a string, while showing the string as it makes progress. Just like a custom edit-childcontrol.

I have tried a lot, but I allways end up with ONE character less when using backspace, or deleting TWO chars instead of one and such... You can see under how I have taught:

Code:

case WM_CHAR:
  switch(wParam) {
  case '\b':


  if(cursorPlace==11) {
  torf=true;
  }


  if(cursorPlace == 0) {
  buffer[cursorPlace]=' ';
  }


  if(cursorPlace > 0) {
  buffer[cursorPlace]=' ';
  cursorPlace--;

  }

  if(torf==true) {
  buffer[cursorPlace]=' ';
  torf=false;
  }



  break;
  case '\r':
  for(i=0; i<150; i++) {
  buffer[i]=' ';
  cursorPlace=0;
  }
  break;
  default:
  buffer[cursorPlace]=wParam;
    if(cursorPlace < 11)cursorPlace++;
    if(cursorPlace != 10) torf=false;
  break;
  }
  InvalidateRect(hwnd,NULL, true);
  return 0;

Can someone show me a simple and correct way of doing this?

**jverkoey** · 02-12-2005

That code looks kinda....messy. This is more what I did:

In the WndProc switch statement

Code:

        case WM_KEYDOWN:
            keys[wParam]=TRUE;
            return 0;
        case WM_KEYUP:
            keys[wParam]=FALSE;
            return 0;

In the game loop:

Please note, textPos was predefined as an integer variable which indicates the current position in the char array, name is a char array of size 32, and keys is a global array that is modified in the wndproc.

Code:

    if(textPos<31)
    {
        for(int a='A';a<='Z';a++)
        {
            if(keys[a])
            {
                keys[a]=false;
                name[textPos]=a;
                textPos++;
            }
        }
        if(keys[VK_SPACE])
        {
            keys[VK_SPACE]=false;
            name[textPos]=' ';
            textPos++;
        }
    }
    if(keys[VK_BACK] && textPos>0)
    {
        keys[VK_BACK]=false;
        textPos--;
        name[textPos]=0;
    }

So in other words, it might be best just to separate the typing code from the WndProc's code.

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