Answer / rani

EnableWindow(FALSE)

Answer / arvin

// Get a pointer to the control's window.
CWnd *p = GetDlgItem(IDC_NEWCONTROL);

// Disable the control.
p->EnableWindow(FALSE);

Answer / deepak

Suppose IDC_EDIT1 is Resource ID of your control.

Get the window handle for that control by

CWnd * pWnd = GetDlgItem(IDC_EDIT1);

then call EnableWindow with parameter FALSE

pWnd->EnableWindow(FALSE);

Answer / chandrasekharan

EnableWindow

Answer / ganeshkumar

GetDlgItem(IDC_EDIT1)->ShowWindow(SW_DISABLE)

Answer / sundar

using CCmdUI class object also controls state can be modifed at run time.

Answer / ctharam

practiced by me, which is a real time example.

EX:-
BOOL Csample_button_name_changeDlg::OnInitDialog()
{
CDialog::OnInitDialog();
// Below Code, To Enable or Disable a button as runtime
CButton *pLogin1 = (CButton*)GetDlgItem(IDCANCEL);
pLogin1->SetWindowTextW(L"Reset");
pLogin1->EnableWindow(FALSE);

return TRUE;
}

Note:- pLogin1->EnableWindow(TRUE); // to enable a Cancel button

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