Updating Edit Every Second

I have something that looks like this:

Code:

while(time >= 0)
{
     time -= 1;
     SetDlgItemInt(hwnd, IDC_TIME, time, false);
     Sleep(1000);
}

And, it changes the variable every second, but it wont update the edit box until time is 0, does anyone know why or how i can fix this?

Sleep() actually halts the program. why dont you try using timers?

have a look at SetTimer() and KillTimer() in the windows API, and do something like this:

Code:

SetTimer(hwnd, TIMER_ID, 1000 /* 1 second */, NULL);

and in your WndProc:

Code:

switch(uMsg)
{
   ...
   case WM_TIMER:
   {
      if(wParam == TIMER_ID)
      {
         time--;
         SetDlgItemInt(hwnd, IDC_TIME, time, false);
         if(time == 0)
         {
            // game over!
            KillTimer(hwnd, TIMER_ID);
         }
      }
      break;
   }
   ...
}

hope this helps
U.

edit: i didn't compile this code... it's just here for ideas

You can try UpdateData(TRUE);
or
UpdateData(FALSE);

I never remeber wich one it is. One is to read from and the other one is to read to.

i have this:

Code:

	case WM_COMMAND:
		{
			switch(LOWORD(wParam))
			{
			case IDC_START:
				{
					time = GetDlgItemInt(hwnd, IDC_TIME, NULL, false);
					
					EnableWindow(hTime, false);
					EnableWindow(hLogoff, false);
					EnableWindow(hShutdown, false);
					EnableWindow(hRestart, false);
					EnableWindow(hStart, false);

					SetTimer(hwnd, IDC_TIMER, 1000, NULL);

				}
				break;

			case WM_TIMER:
				{
					switch(wParam)
					{
					case IDC_TIMER:
						{
							time--;
							SetDlgItemInt(hwnd, IDC_TIME, time, false);
							
							if(time == 0)
							{
								EnableWindow(hTime, true);
								EnableWindow(hLogoff, true);
								EnableWindow(hShutdown, true);
								EnableWindow(hRestart, true);
								EnableWindow(hStart, true);

								KillTimer(hwnd, IDC_TIMER);
							}
						}
						break;
					}
				}
				break;

It compiles fine, but it doesnt update the edit box

Err nevermind i found my problem, i put the WM_TIMER in the WM_COMMAND, WOOPS

Err now i have another problem, the number in the textbox updates, but goes to a really big number...

Code:

	case WM_TIMER:
		{
			switch(wParam)
			{
			case IDC_TIMER:
				{
					time--;
					SetDlgItemInt(hwnd, IDC_TIME, time, false);
					
					if(time == 0)
					{
						EnableWindow(hTime, true);
						EnableWindow(hLogoff, true);
						EnableWindow(hShutdown, true);
						EnableWindow(hRestart, true);
						EnableWindow(hStart, true);
						KillTimer(hwnd, IDC_TIMER);
					}
				}
				break;
			}
		}	
		break;

alli can think of it kill the timer before you disable/enable all those windows (not that it'll make a difference).... and make sure you initialise the value for time. coz if it's zero, then the moment you do time-- it'll become really big!

so set time to something other than zero first....

other than that... if you have problems still, post a link to the code and i'll see what i can do for ya.

U.