function EnumWindowsProc(hwnd: HWND; lParam: LPARAM): Boolean ;stdcall; // EnumWindows 专用的回调函数的格式: // function EnumWindowsProc( // hwnd: HWND; {找到的窗口句柄} // lParam: LPARAM {EnumWindows 传给的参数; 因为它是指针, 可传入, 但一般用作传出数据} // ): Boolean; stdcall; {函数返回 False 时, 调用它的 EnumWindows 将停止遍历并返回 False} function EnumWindowsProc(hwnd: HWND; lParam: LPARAM): Boolean ;stdcall; var WindowText : string ; // 窗体标题 WindowClass : string ; // 窗体类名 SendHwnd : DWORD ; // 发送按钮 tdiahandle : THandle ; tedithandle : THandle ; tduihuakhandle: THandle ; begin if ( IsWindowVisible(hwnd) or IsIconic(hwnd) ) and ( (GetWindowLong(hwnd, GWL_HWNDPARENT) = 0) or (GetWindowLong(hwnd, GWL_HWNDPARENT) = Longint(GetDesktopWindow)) ) and ( GetWindowLong(hwnd, GWL_EXSTYLE) and WS_EX_TOOLWINDOW = 0) then begin {-----标题文字------} SetLength(WindowText, GetWindowTextLength(hwnd)+2); Getwindowtext(hwnd, Pchar(WindowText), GetWindowTextLength(hwnd)+2); WindowText := string(Pchar(WindowText)); {-----窗体类名------} SetLength(WindowClass, 512); GetClassName(hwnd, Pchar(WindowClass), 512); WindowClass := string(Pchar(WindowClass) ); if SameStr(WindowClass , 'TXGuiFoundation') then begin Form1.mmo.Lines.Add(' 窗口标题:' + WindowText + ' 窗体类名: ' + WindowClass); BringWindowToTop(hwnd); SetWndText(hwnd,'hello,delphi test'); // tduihuakhandle := GetDlgItem(hwnd, 0); // SendMessage() // SendHwnd := FindWindowEx(hwnd , 0, nil, '发送(S)'); //找到送信息按钮, // ShowMessage(string(SendHwnd)); end; end; Result := True; end;
procedure TForm1.btn1Click(Sender: TObject); begin Form1.mmo.Clear; // EnumWindows 的功能是遍历所有顶层窗口 // function EnumWindows( // lpEnumFunc: TFNWndEnumProc; {回调函数指针} // lParam: LPARAM {给回调函数的参数, 它对应回调函数的第二个参数} // ): BOOL; stdcall; //成功与否, 其实是返回了回调函数的返回值 EnumWindows(@EnumWindowsProc ,0); FQQMessage := edtQQMessage.Text; end;