unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, ExtCtrls;

type
  TForm1 = class(TForm)
    Button1: TButton;
    Memo1: TMemo;
    Memo2: TMemo;
    Button2: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;
  Old:HWND;

implementation

{$R *.dfm}

//獲得窗口文本
function GetWndText(hWnd: HWND): String;
Var
    Ret:LongInt;
    mText:PChar;
    Buf:Integer;
begin
    Ret:=SendMessage(hWnd,WM_GETTEXTLENGTH,0,0)+1;
    GetMem(mText,Ret);
    try
        Buf:=LongInt(mText);
        SendMessage(hWnd,WM_GETTEXT,Ret,Buf);
        Result:=StrPas(mText);
    finally
        FreeMem(mText,Ret);
    end;
end;

// 發送文本到窗口
procedure SetWndText(hWnd: HWND; Text: String);
Var
    //Ret:LongInt;
    mText:PChar;
    Buf:Integer;
begin
    GetMem(mText,Length(Text));
    StrCopy(mText,PChar(Text));
    try
        Buf:=LongInt(mText);
        SendMessage(hWnd,WM_SETTEXT,0,Buf);
    finally
        FreeMem(mText,Length(Text));
    end;
end;


procedure TForm1.Button1Click(Sender: TObject);
var
   hQQ ,hChild,hRichText: hwnd;
   RichEditTest:array [0..2048] of Char;
begin
     //查找QQ
    hQQ :=  FindWindowEx(0,        //Parent
                         0,        //Child
                         '#32770', //窗口類名通過Spy++或者MiniSpy都可以查到
                         nil       //窗口Caption
                         );
//循環查找
  While   (hQQ <> 0)  do                   //and (hSend = 0)

  begin
    if Old=hQQ then exit else
    begin
    if  (Pos('聊天中',GetWndText(hQQ))>0) or
        (Pos('發送消息',GetWndText(hQQ))>0) or
        (Pos('群',GetWndText(hQQ))>0) then
    begin
        //hChild:=GetDlgItem(hQQ,0);
        //hRichText  := GetDlgItem(GetDlgItem(hChild,0), 894);
        //hChild:=GetDlgItem(hQQ,$0000000);
       // hRichText:=getwindow(hChild,GW_CHILD);
        // Memo1.Text:=GetWndText(hRichText);
       // setWndText(hRichText,'haha');


        hChild:=GetDlgItem(hQQ,0);//Control ID使用Spy++很容易就可以找到，這是第一個子窗口的句柄
        hRichText:=GetDlgItem(hChild,$380);//這個是消息框的句柄，380就是用Spy++找到的
        //SendMessage(hRichText,WM_GETTEXT,2048,Integer(@RichEditTest));//發送WM_GETTEXT消息
        //Form1.Memo1.Lines.Add(RichEditTest);
        Memo1.Lines.Add(GetWndText(hRichText));
        Form1.Memo1.Lines.Add('=================');

        Old:=hQQ;
        exit;
    end;
    end;
    //查找QQ
    hQQ :=  FindWindowEx(0,        //Parent
                         hQQ,        //Child
                         '#32770', //窗口類名通過Spy++或者MiniSpy都可以查到
                         nil       //窗口Caption
                         );
   end;



end;

end.