Dialog

This is a discussion on Dialog within the Windows Programming forums, part of the Platform Specific Boards category; Hi, I need help in writing a simple Windows application. I'm just starting out with Win32 so I'm having a ...

  1. #1
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    Dialog

    Hi,

    I need help in writing a simple Windows application. I'm just starting out with Win32 so I'm having a lot of problems with this.

    I want an application that would only have one dialog box - no window. I already know how to write an application with a window, but I don't what to do with the dialog box - how to create it.

    I don't want to post my code just yet, becuase it's a complete mess, but I also don't expect anyone to write me the whole code. I think I can figure most of it out if you give me some pointers. I don't even know how to show the dialog - with the CreateWindow/ShowWindow function? Do I need the wndclass when dealing with only a dialog?

    As I said, I'm just starting but I can write a simple window so I'd just need some guides where to go.


    btw, while trying to figure out this myself I was able to create a windows application that compiled but didn't run. There wasn't anything odd in the code, yet whenever I ran it, it didn't show up (couldn't see it in task manager either).

  2. #2
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    Have you read the Forger's tutorial on www.winprog.org ? You should. Also, I would definitely advise you to wait until you know how to make GDI programs run correctly before moving to Dialog-only programs. As for your question about WndProc(), yes you always need it because it defines the behaviour of your application.

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    Thanks about that, but I'm having a problem.

    I did exactly like written in that tutorial and it worked OK. Then I opened the resource file to edit some code and renamed IDD_DIALOG1 to IDD_DLG etc... And now when I build it, I can't run the exe. This has happened before (as I wrote in my first post) and I don't know what's happening. The project compiles without errors etc... basically the program exists and should be working but for some reason I can't run it :|

    I even tried this app at a friend and the same happens. As I said, this happened a couple of times already to me. I think manually editing the .rc files causes this?

  5. #5
    int x = *((int *) NULL); Cactus_Hugger's Avatar
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    It sounds like you renamed your dialogs resource, but the program itself is still looking for it under the old name. Make sure you change _all_ of the IDD_DIALOG1s to IDD_DLG. They must match up. DialogBox() is probaly saying "What? This resource isn't here!" and returning an error code. (One you're probably not checking for...)
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    Yes I did that, but the problem was still there. After some fiddling around I found out the problem was with the text editor control. I don't know why or what but whenever I add a control to the dialog I can't run the executable (but it compiles).

    Can anyone please download this project and test themselvec why this is happening? Maybe I'm missing something.

    http://www.bestsharing.com/files/ms0...ialog.rar.html
    (tell me if the link isn't working)

  7. #7
    Even death may die... Dante Shamest's Avatar
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    In the download you provided, I can't find any EDIT controls anywhere.

  8. #8
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    Yeah, sorry about that. I forgot to write that you should try compiling it the way it is and run it. Then try adding an edit control, recompile it and see if it runs.

  9. #9
    Even death may die... Dante Shamest's Avatar
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    After adding an edit control, I had to change
    Code:
    	case WM_COMMAND:
    		switch(wParam)
    		{
    		case IDCLOSE:
    			EndDialog(hWndDlg, 0);
    			return TRUE;
    		}
    to this

    Code:
      case WM_COMMAND: {
        switch(wParam) {
          case IDCLOSE: {
            EndDialog(hWndDlg, 0);
            return TRUE;
          }
        }
        return TRUE ;
      }
    Then the edit control displays.

  10. #10
    Arggggh DeepFyre's Avatar
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    maybe i is a stupidhead but methinks you should be tryin visual c++
    p.s. its free!
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  11. #11
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    Thanks everyone. I'm still learning and I need to get this done fast for school
    Althought, Dante, your solution did work, I think the problem was that I used a common control, so I had to include commctrl.h, ComCtl32.lib and call InitCommonControls().

    I have another question.

    So I made an edit control but I want it to only accept numbers from 0 to 50 - I used ES_NUMBER flag for only numbers - but I don't know how to either prevent typing in any larger number or attach a spin control to the edit box and then set the spin range to 0-50.

    The major problem I'm having is how to attach the spin control to the edit control. I tried grouping, buddying,... Also I would like to keep it as win32 as possible (AFAIK spin control is MFC) so if anyone can tell me how to do this with the Win32 up-down control?

    Thanks again.

  12. #12
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