Re: Visual C++: the need for MFC

From:
Juha Nieminen <nospam@thanks.invalid>
Newsgroups:
comp.lang.c++
Date:
Sun, 15 Jun 2008 19:06:06 GMT
Message-ID:
<yKd5k.1589$5x5.1584@read4.inet.fi>
jacob navia wrote:

I always use C for my dialogs. Suppose a dialog that asks for a number,
with two OK Cancel buttons.

The minimal code to handle that dialog is:
INT_PTR CALLBACK AskALine(HWND hDlg,MSGTYPE message,WPARAM wParam,LPARAM
lParam)
{
    int i, c, line;
    HWND hCB;
    char tmpbuf[10];
    switch (message) {
    case WM_COMMAND:
        switch (GETIDFROMWPARAM(wParam)) {
        case IDOK:
            GetDlgItemText(hDlg,IDGOTOLINENR, tmpbuf, 9);
            if (!ValidateInteger(tmpbuf, &line))
                return 1;
            if (l <= 0)
                break;
            EndDialog(hDlg,line);
            return 1;
        }
    }
    return (HandleDefaultMessages(hDlg, message, wParam, lParam));
}


  I fail to see where is it that you define the actual contents of the
dialog: Title bar text, dialog text and its location, a textfield (or
similar, to ask for the number) and its geometry, the amount and
contents of the buttons...

  The only thing I see there is a callback function which handles
signals received by something.

  Note that we are talking about Visual Studio Express here: AFAIK it
doesn't have fancy graphical window design editors. If you want to
create a new window type using the Win32 API, you'll have to write it
completely by hand. And, AFAIK, this is a real nightmare.

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