How to get editcontrol content in dialog

zrqscr

I created a dialog with an editcontrol and two buttons (ok, cancel). When I click the menu option, the dialog pops up, enter the content, click the ok button to get the content in editcontrol, and the dialog exits. But it's not always available. Why?

IDC_EDIT is the ID number of editcontrol, and dlgPara is the dialog that pops up when I click the menu.

if (dlgPara.DoModal ()! = IDOK)
{
return;
}


char str [3];

SendDlgItemMessage (IDC_EDIT, WM_GETTEXT, 3, (LPARAM) str);

who0421

It seems that lz uses mfc
Then I think that the class that calls senddlgitemmessage is a dialog box containing idc-edit, I am afraid it is not the case, huh, huh

who0421

The simple way is to bind a variable to the edit control, you can get it directly

zrqscr

CString str;
dlgPara.GetDlgItemText (IDC_EDIT, str);

The program still reported an error. What should I do?

cuoren1984

Personally think this is the case. After you click ok, after the dialog box exits, Edit should no longer exist!
You look up its value again, it seems not work!

cuoren1984

Associate a variable editText for Edit, UpdateData () in ok,
then;
In the main program
CString str;
if (dlgPara.DoModal () = = IDOK)
{
str = dlgPara.editText;
}

Give it a try

zrqscr

Associate a variable editText for Edit, UpdateData () in ok, how to do this.

superddr

When you click ok in your dialog, use GetDlgItemText (IDC_EDIT, str);

Then use the upstairs association method

zrqscr

Well done, thank you.