CWnd::SetWindowText
設定視窗的標題設定為指定的文字。
void SetWindowText(
LPCTSTR lpszString
);
參數
- lpszString
為 CString 的點針對或 null 結尾為新標題文字或控制項要使用的字串。
備註
如果視窗是控制項，在控制項中的文字設定為。
這個函式會 WM_SETTEXT 傳送到這個視窗。
範例
// set the text in IDC_EDITNAME
CWnd* pWnd = GetDlgItem(IDC_EDITNAME);
pWnd->SetWindowText(_T("Gerald Samper"));
// Get the text back. CString is convenient, because MFC
// will automatically allocate enough memory to hold the
// text--no matter how large it is.
CString str;
pWnd->GetWindowText(str);
ASSERT(str == _T("Gerald Samper"));
// The LPTSTR override works, too, but it might be too short.
// If we supply a buffer that's too small, we'll only get those
// characters that fit.
TCHAR sz[10];
int nRet = pWnd->GetWindowText(sz, 10);
// Nine characters, plus terminating null
ASSERT(_tcscmp(sz, _T("Gerald Sa")) == 0);
ASSERT(nRet == 9);
// You can query the length of the text without the length of
// the string using CWnd::GetWindowTextLength()
nRet = pWnd->GetWindowTextLength();
ASSERT(nRet == 13);
需求
Header: afxwin.h