Solved

Showmodal in C++?

Posted on 2011-02-22
5
957 Views
Last Modified: 2012-05-11
Hello,

Stuppid question but... in Delphi, calling a form with .ShowModal it will freeze the entire application until the form is closed...

code example in Delphi

Form2 := TForm2.Create(Self);
try
  Form2.ShowModal; //app freeze here
finally
  Form2.Free;
  Application.Terminate;
end;

Application will only Terminate when the Form2 was closed by the user...

How to do the same in C++ and what's the name for this? example: in Delphi its call ShowModal

Haha sorry but i really need to know and my skills with C++ is -1 uhahuauha

Regards!
0
Comment
Question by:cebasso
5 Comments
 
LVL 19

Assisted Solution

by:mrwad99
mrwad99 earned 100 total points
ID: 34952266
If you are talking about an MFC modal CDialog, you call DoModal().  For example,

CDialog dlg ( ... );
dlg.DoModal();

// Any code here won't be executed until DoModal() returns, which will be when the dialog is closed.

HTH
0
 
LVL 86

Assisted Solution

by:jkr
jkr earned 100 total points
ID: 34953126
Without  any framework, the equivalent would be 'DialogBox()' (http://msdn.microsoft.com/en-us/library/ms645452(VS.85).aspx - see also http://msdn.microsoft.com/en-us/library/aa511268.aspx , "Dialog Boxes")
#include <windows.h>

LRESULT CALLBACK MyDlgProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);

int APIENTRY WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPTSTR    lpCmdLine,
                     int       nCmdShow)
{
    UNREFERENCED_PARAMETER(hPrevInstance);
    UNREFERENCED_PARAMETER(lpCmdLine);

    hInst = hInstance;

    int nRet = (int)DialogBox(hInst,MAKEINTRESOURCE(IDD_MY_DIALOG),0,(DLGPROC) MyDlgProc);

    if (-1 == nRet)
    {
      
      return -1;
    }

    return 0;
}

LRESULT CALLBACK MyDlgProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam) {

    switch (uMsg) {  // fill in the gaps here

                case    WM_INITDIALOG:  break;
                case    WM_COMMAND:     break;


            };

    return FALSE;
}

Open in new window

0
 
LVL 33

Expert Comment

by:sarabande
ID: 34953229
what os and compiler you were using?

you should know that c++ itself has no gui programming included.

so you need an additional library what can be MFC (microsoft foundation classes) when using visual c++ compiler or native WINAPI (a C library for programming in windows) or QT (a portable class library for many os' and compilers).

Sara
0
 
LVL 11

Accepted Solution

by:
DeepuAbrahamK earned 300 total points
ID: 34954986
0
 
LVL 4

Author Closing Comment

by:cebasso
ID: 34988831
Thanks you!
0

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction This article is a continuation of the C/C++ Visual Studio Express debugger series. Part 1 provided a quick start guide in using the debugger. Part 2 focused on additional topics in breakpoints. As your assignments become a little more …
Many modern programming languages support the concept of a property -- a class member that combines characteristics of both a data member and a method.  These are sometimes called "smart fields" because you can add logic that is applied automaticall…
The goal of the video will be to teach the user the difference and consequence of passing data by value vs passing data by reference in C++. An example of passing data by value as well as an example of passing data by reference will be be given. Bot…
The viewer will learn additional member functions of the vector class. Specifically, the capacity and swap member functions will be introduced.

829 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question