QQ聊天记录器演示程序(二)

QQ聊天记录器演示程序(二)(2)   Result := CallNextHookEx(Shared^.CallHook,iCode,wParam,lParam);
end;

演示程序相关代码:

procedure TForm1.WndProc(var Msg: TMessage);
begin
 with Msg do
 begin
   if Msg = WM_USERCMD then
   begin
     case wParam of
       UC_WINDESTROY:
       begin
         GetText(Findhwd(HWND(lParam)));
       end;
     end;
   end;
 end;
 inherited;
end;

function TForm1.Findhwd(parent: HWND):HWND;
var
  hwd,hBtn,hMemo:HWND;
begin
    hwd:=findwindowex(parent,0,'#32770',nil);

    Result := 0;
    if (parent<>0) then
    begin
      hBtn := FindwindowEX(hwd,0,nil,'发送(&S)');
      if (hBtn<>0) then
        begin
          hMemo := GetDlgItem(hwd,$00000000);
          if (hMemo<>0) then
            begin
              result := GetWindow(hMemo,GW_CHILD);
            end;
        end;
    end;
end;

procedure TForm1.GetText(hwd: HWND);
var
  Ret: LongInt;
  QQText: PChar;
  Buf: integer;
begin
  GetMem(QQText,1024);