button press recognized when window moved

[barrensoul]

when I click on the title bar and drage my window to a new location, once it left go of the mouse buton it thinks I've hit the sutek button:

long FAR PASCAL WndProc (HWND myhwnd, UINT message, WPARAM wParam, LPARAM lParam)//Message Handling
{
 switch (message)
 {
  case WM_CHAR:
   if (wParam == 27)
	  PostQuitMessage(0);
   break;
  case WM_DESTROY: 
   PostQuitMessage(0);
   break;
 }

if((LOWORD(wParam) == StopB)&&(message == BN_SETFOCUS))
 windowswitch = 0;

 switch (LOWORD(wParam))
  {
  case CancelB://if wParam is == button then the button associated was clicked
   PostQuitMessage(0);
   break;
  case AdverB:
   if(windowswitch!=1)
    windowswitch = 1;
   break;
  case BankB:
   if(windowswitch!=2)
    windowswitch = 2;
   break;
  case BlockB:
   if(windowswitch!=3)
    windowswitch = 3;
   break;
  case SutekB:
   if(windowswitch!=4)
    windowswitch = 4;
   break;
  case StopB:
   DestroyWindow(H);
   windowswitch = 0;
   break;
  }
 return(DefWindowProc(myhwnd,message,wParam,lParam));
}