Delphi Thread

主窗体:
Delphi(Pascal) code:

procedure TfrmMain.btnResumeClick(Sender: TObject);
begin
myThread := TClientThread.Create(LeftPart(cbbServer.Text, ':'), StrToInt(RightPart(cbbServer.Text, ':')));
myThread.Resume;
mmoLog.Lines.Add('线程已激活');
end;

procedure TfrmMain.btnSuspendClick(Sender: TObject);
begin
if myThread = nil then
begin
ShowMessage('线程未创建!');
Exit;
end;
myThread.Suspend;
mmoLog.Lines.Add('线程已挂起');
end;

procedure TfrmMain.btnStopClick(Sender: TObject);
begin
if myThread = nil then
begin
ShowMessage('线程未创建!');
Exit;
end;
myThread.Terminate;
myThread.WaitFor;
mmoLog.Lines.Add('线程已停止');
end;



线程单元:
Delphi(Pascal) code:

unit uClientThread;

interface

uses
Windows, Classes, SysUtils, IdTCPClient, uString, Main, uCommon, Messages, Dialogs;

const
CM_DIAL = WM_USER + $100;
CM_HUNGUP = WM_USER + $101;

type
TClientThread = class(TThread)
private
FClient: TIdTCPClient;
FRequest: TStrings;
FResponse: TStrings;
FNotifyHandle: HWND;
// FPioneerCtrl: HWND;

procedure DoDial;
procedure DoDrop;
procedure DoUpload;
procedure DoSave;
protected
procedur