获取其他进程中StatusBar的文本

标题:获取其他进程中StatusBar的文本
说明:Window2000+Delphi6调试通过
设计:Zswang
支持:[e-mail]
日期:2005-02-22
//*)

uses CommCtrl;

function GetStatusBarText(mHandle: THandle): string;
var
  vBuffer: array[0..$1000] of Char;
  vSize: Integer;
  I: Integer;
  vCount: Integer;
  vProcessId: DWORD;
  vProcess: THandle;
  vPointer: Pointer;
  vNumberOfBytesRead: Cardinal;
begin
  Result := ‘‘;
  vCount := SendMessage(mHandle, SB_GETPARTS, 0, 0);
  if vCount <= 0 then Exit;
  GetWindowThreadProcessId(mHandle, @vProcessId);
  vProcess := OpenProcess(PROCESS_VM_OPERATION or PROCESS_VM_READ or
    PROCESS_VM_WRITE, False, vProcessId);
  vPointer := VirtualAllocEx(vProcess, nil, $1000, MEM_RESERVE or MEM_COMMIT,
    PAGE_READWRITE);
  try
    for I := 0 to vCount - 1 do
    begin
      vSize := SendMessage(mHandle, SB_GETTEXT, I, 0) + 1;
      SendMessage(mHandle, SB_GETTEXT, I, Integer(vPointer));
      ReadProcessMemory(vProcess, vPointer, @vBuffer[0],
        vSize, vNumberOfBytesRead);
      Result := Result + #9 + vBuffer;
    end;
    Delete(Result, 1, 1);
  finally
    VirtualFreeEx(vProcess, vPointer, 0, MEM_RELEASE);
    CloseHandle(vProcess);
  end;
end; { GetStatusBarText }

//Example
procedure TForm1.FormCreate(Sender: TObject);
begin
  RegisterHotKey(Handle, 1, MOD_WIN, VK_F2);
end;

procedure TForm1.FormDestroy(Sender: TObject);
begin
  UnRegisterHotKey(Handle, 1);
end;

procedure TForm1.WMHOTKEY(var Msg: TWMHOTKEY);
begin
  case Msg.HotKey of
    1: Edit1.Text := GetStatusBarText(
      WindowFromPoint(Point(Mouse.CursorPos.X, Mouse.CursorPos.Y)));
  end;
end;