既然 MSDN里面有个However,SetWindowText不行了
SetWindowText
The SetWindowText function changes the text of the specified window's title bar (if it has one). If the specified window is a control, the text of the control is changed. However, SetWindowText cannot change the text of a control in another application.
BOOL SetWindowText(
HWND hWnd, // handle to window or control
LPCTSTR lpString // title or text
);
而这里没有那么就是它了哦
WM_SETTEXT
An application sends a WM_SETTEXT message to set the text of a window.