C++ 本机 Win32 简单编辑控件

Question

I'm currently experimenting with making a little native Win32 executable. So no external libraries/wrappers/frameworks. I added a simple edit control and a button. The problem is that I can't change the text of an Edit Control in the Properties window of Visual Studio. The default text is Sample edit box and that doesn't show up in the Properties window (IDC_EDIT1), so I can't change it.

How can I change the text of an Edit Control (preferably within the properties window)? Also, is an edit control part of the MFC library?

Answer 1

Visual Studio's Properties window is part of the graphical UI to create and modify Resource Files . Resource files are used, among other things, to store dialog templates, including the dialog's child controls. Since the EDITTEXT resource statement doesn't allow for an initial text entry, you cannot statically set one. You will have to set the control text at runtime, either by using the Edit_SetText macro, or by calling SetWindowText directly.

The Edit Control is a standard Windows control, not part of MFC. MFC provides a wrapper class, CEdit , like it does for all other standard controls.

Answer 2

In your dialog window function use this construct to set text for your control (given its id is ID_BUTTON)

BOOL CALLBACK  DialogProc(HWND hDlg, UINT iMsg, WPARAM wParam, LPARAM lParam)
{
     switch (iMsg)
     {
          case WM_INITDIALOG :
               SetDlgItemText ( hDlg, ID_BUTTON, "Button Text" );
               return TRUE ;
     }
     return FALSE ;
}