win32 sdk SetWindowText()怎么在编辑框中显示内容？

Question

如下图，只能显示在标题栏上。怎么在图中灰色区域显示？getDlgItem()为什么返回0？

 hWndDialogBox = CreateDialog((HINSTANCE) GetWindowLong(hWnd, GWL_HINSTANCE), MAKEINTRESOURCE(IDD_DIALOG), hWnd, (DLGPROC)DeleteItemProc);
HWND hWnd = GetDlgItem(hWndDialogBox, IDD_DIALOG);
CString Buff("hhh");
SetWindowText(hWndDialogBox, Buff);
ShowWindow(hWndDialogBox, SW_SHOW);

Answer 1

在文本框显示用sendmessage wm_settext
上次好像已经回答你了