求助！获取编辑框字符串 - 编程论坛

求助！获取编辑框里输入的字符串
void CDDlg::OnChangeEdit1()
{
    // TODO: If this is a RICHEDIT control, the control will not
    // send this notification unless you override the CDialog::OnInitDialog()
    // function and call CRichEditCtrl().SetEventMask()
    // with the ENM_CHANGE flag ORed into the mask.

    // TODO: Add your control notification handler code here
    char str【】;
    GetDlgItem(IDC_EDIT1)->GetwindowText(str);
}
用mfc wizard建立了一个对话框，需要读入编辑框里输入的字符串并进行处理，红色部分报错
error C2039: 'GetwindowText' : is not a member of 'CWnd'
求指教啊！
msdn里对GetwindowText的解释
GetWindowText
The GetWindowText function copies the text of the specified window's title bar (if it has one) into a buffer. If the specified window is a control, the text of the control is copied. However, GetWindowText cannot retrieve the text of a control in another application.

int GetWindowText(
  HWND hWnd,        // handle to window or control
  LPTSTR lpString,  // text buffer
  int nMaxCount     // maximum number of characters to copy
);
Parameters
hWnd
[in] Handle to the window or control containing the text.
lpString
[out] Pointer to the buffer that will receive the text.
nMaxCount
[in] Specifies the maximum number of characters to copy to the buffer, including the NULL character. If the text exceeds this limit, it is truncated.

怎么改呢？不会是我的vc6.0头文件有问题吧。。。

http://zhidao.baidu.com/question/203131774.html
百度有个解释，类似的，为什么改成他说的那样就行了？我的这个怎样改？？？