ActiveForm内的线程触发不了定制事件（300分） (300分)

ActiveForm内的线程触发不了定制事件
自己写了一个事件，把它在线程内部进行触发。
如果程序是普通的 appliaction ，则触发都没有问题。
但是，如果线程在active form内部被调用，则在线程内部的事件不能够被触发。
好像线程被暂停运行了。
请问：
是否需要设置一下 active form 呢？
还是需要特殊处理一下线程呢？
程序代码如下：
===========================================================================
//[red]active form中的代码[/red]
unit ActiveFormImpl1;
{$WARN SYMBOL_PLATFORM OFF}
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
ActiveX, AxCtrls, ActiveFormProj1_TLB, StdVcl, StdCtrls, Unit2;
type
TActiveFormX = class(TActiveForm, IActiveFormX)
Button1: TButton;
procedure ActiveFormCreate(Sender: TObject);
procedure ActiveFormDestroy(Sender: TObject);
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
FEvents: IActiveFormXEvents;
procedure ActivateEvent(Sender: TObject);
procedure ClickEvent(Sender: TObject);
procedure CreateEvent(Sender: TObject);
procedure DblClickEvent(Sender: TObject);
procedure DeactivateEvent(Sender: TObject);
procedure DestroyEvent(Sender: TObject);
procedure KeyPressEvent(Sender: TObject;
var Key: Char);
procedure PaintEvent(Sender: TObject);
procedure TestOnMessage(const Test: string);
protected
{ Protected declarations }
procedure DefinePropertyPages(DefinePropertyPage: TDefinePropertyPage);
override;
procedure EventSinkChanged(const EventSink: IUnknown);
override;
function Get_Active: WordBool;
safecall;
function Get_AlignDisabled: WordBool;
safecall;
function Get_AutoScroll: WordBool;
safecall;
function Get_AutoSize: WordBool;
safecall;
function Get_AxBorderStyle: TxActiveFormBorderStyle;
safecall;
function Get_Caption: WideString;
safecall;
function Get_Color: OLE_COLOR;
safecall;
function Get_Cursor: Smallint;
safecall;
function Get_DoubleBuffered: WordBool;
safecall;
function Get_DropTarget: WordBool;
safecall;
function Get_Enabled: WordBool;
safecall;
function Get_Font: IFontDisp;
safecall;
function Get_HelpFile: WideString;
safecall;
function Get_HelpKeyword: WideString;
safecall;
function Get_HelpType: TxHelpType;
safecall;
function Get_KeyPreview: WordBool;
safecall;
function Get_PixelsPerInch: Integer;
safecall;
function Get_PrintScale: TxPrintScale;
safecall;
function Get_Scaled: WordBool;
safecall;
function Get_Visible: WordBool;
safecall;
function Get_VisibleDockClientCount: Integer;
safecall;
procedure _Set_Font(var Value: IFontDisp);
safecall;
procedure Set_AutoScroll(Value: WordBool);
safecall;
procedure Set_AutoSize(Value: WordBool);
safecall;
procedure Set_AxBorderStyle(Value: TxActiveFormBorderStyle);
safecall;
procedure Set_Caption(const Value: WideString);
safecall;
procedure Set_Color(Value: OLE_COLOR);
safecall;
procedure Set_Cursor(Value: Smallint);
safecall;
procedure Set_DoubleBuffered(Value: WordBool);
safecall;
procedure Set_DropTarget(Value: WordBool);
safecall;
procedure Set_Enabled(Value: WordBool);
safecall;
procedure Set_Font(const Value: IFontDisp);
safecall;
procedure Set_HelpFile(const Value: WideString);
safecall;
procedure Set_HelpKeyword(const Value: WideString);
safecall;
procedure Set_HelpType(Value: TxHelpType);
safecall;
procedure Set_KeyPreview(Value: WordBool);
safecall;
procedure Set_PixelsPerInch(Value: Integer);
safecall;
procedure Set_PrintScale(Value: TxPrintScale);
safecall;
procedure Set_Scaled(Value: WordBool);
safecall;
procedure Set_Visible(Value: WordBool);
safecall;
public
{ Public declarations }
procedure Initialize;
override;
end;

var
TestObj: TTest;
implementation
uses ComObj, ComServ;
{$R *.DFM}
{ TActiveFormX }
procedure TActiveFormX.DefinePropertyPages(DefinePropertyPage: TDefinePropertyPage);
begin
{ Define property pages here. Property pages are defined by calling
DefinePropertyPage with the class id of the page. For example,
DefinePropertyPage(Class_ActiveFormXPage);
}
end;

procedure TActiveFormX.EventSinkChanged(const EventSink: IUnknown);
begin
FEvents := EventSink as IActiveFormXEvents;
inherited EventSinkChanged(EventSink);
end;

procedure TActiveFormX.Initialize;
begin
inherited Initialize;
OnActivate := ActivateEvent;
OnClick := ClickEvent;
OnCreate := CreateEvent;
OnDblClick := DblClickEvent;
OnDeactivate := DeactivateEvent;
OnDestroy := DestroyEvent;
OnKeyPress := KeyPressEvent;
OnPaint := PaintEvent;
end;

function TActiveFormX.Get_Active: WordBool;
begin
Result := Active;
end;

function TActiveFormX.Get_AlignDisabled: WordBool;
begin
Result := AlignDisabled;
end;

function TActiveFormX.Get_AutoScroll: WordBool;
begin
Result := AutoScroll;
end;

function TActiveFormX.Get_AutoSize: WordBool;
begin
Result := AutoSize;
end;

function TActiveFormX.Get_AxBorderStyle: TxActiveFormBorderStyle;
begin
Result := Ord(AxBorderStyle);
end;

function TActiveFormX.Get_Caption: WideString;
begin
Result := WideString(Caption);
end;

function TActiveFormX.Get_Color: OLE_COLOR;
begin
Result := OLE_COLOR(Color);
end;

function TActiveFormX.Get_Cursor: Smallint;
begin
Result := Smallint(Cursor);
end;

function TActiveFormX.Get_DoubleBuffered: WordBool;
begin
Result :=do
ubleBuffered;
end;

function TActiveFormX.Get_DropTarget: WordBool;
begin
Result := DropTarget;
end;

function TActiveFormX.Get_Enabled: WordBool;
begin
Result := Enabled;
end;

function TActiveFormX.Get_Font: IFontDisp;
begin
GetOleFont(Font, Result);
end;

function TActiveFormX.Get_HelpFile: WideString;
begin
Result := WideString(HelpFile);
end;

function TActiveFormX.Get_HelpKeyword: WideString;
begin
Result := WideString(HelpKeyword);
end;

function TActiveFormX.Get_HelpType: TxHelpType;
begin
Result := Ord(HelpType);
end;

function TActiveFormX.Get_KeyPreview: WordBool;
begin
Result := KeyPreview;
end;

function TActiveFormX.Get_PixelsPerInch: Integer;
begin
Result := PixelsPerInch;
end;

function TActiveFormX.Get_PrintScale: TxPrintScale;
begin
Result := Ord(PrintScale);
end;

function TActiveFormX.Get_Scaled: WordBool;
begin
Result := Scaled;
end;

function TActiveFormX.Get_Visible: WordBool;
begin
Result := Visible;
end;

function TActiveFormX.Get_VisibleDockClientCount: Integer;
begin
Result := VisibleDockClientCount;
end;

procedure TActiveFormX._Set_Font(var Value: IFontDisp);
begin
SetOleFont(Font, Value);
end;

procedure TActiveFormX.ActivateEvent(Sender: TObject);
begin
if FEvents <> nil then
FEvents.OnActivate;
end;

procedure TActiveFormX.ClickEvent(Sender: TObject);
begin
if FEvents <> nil then
FEvents.OnClick;
end;

procedure TActiveFormX.CreateEvent(Sender: TObject);
begin
if FEvents <> nil then
FEvents.OnCreate;
end;

procedure TActiveFormX.DblClickEvent(Sender: TObject);
begin
if FEvents <> nil then
FEvents.OnDblClick;
end;

procedure TActiveFormX.DeactivateEvent(Sender: TObject);
begin
if FEvents <> nil then
FEvents.OnDeactivate;
end;

procedure TActiveFormX.DestroyEvent(Sender: TObject);
begin
if FEvents <> nil then
FEvents.OnDestroy;
end;

procedure TActiveFormX.KeyPressEvent(Sender: TObject;
var Key: Char);
var
TempKey: Smallint;
begin
TempKey := Smallint(Key);
if FEvents <> nil then
FEvents.OnKeyPress(TempKey);
Key := Char(TempKey);
end;

procedure TActiveFormX.PaintEvent(Sender: TObject);
begin
if FEvents <> nil then
FEvents.OnPaint;
end;

procedure TActiveFormX.Set_AutoScroll(Value: WordBool);
begin
AutoScroll := Value;
end;

procedure TActiveFormX.Set_AutoSize(Value: WordBool);
begin
AutoSize := Value;
end;

procedure TActiveFormX.Set_AxBorderStyle(Value: TxActiveFormBorderStyle);
begin
AxBorderStyle := TActiveFormBorderStyle(Value);
end;

procedure TActiveFormX.Set_Caption(const Value: WideString);
begin
Caption := TCaption(Value);
end;

procedure TActiveFormX.Set_Color(Value: OLE_COLOR);
begin
Color := TColor(Value);
end;

procedure TActiveFormX.Set_Cursor(Value: Smallint);
begin
Cursor := TCursor(Value);
end;

procedure TActiveFormX.Set_DoubleBuffered(Value: WordBool);
begin
do
ubleBuffered := Value;
end;

procedure TActiveFormX.Set_DropTarget(Value: WordBool);
begin
DropTarget := Value;
end;

procedure TActiveFormX.Set_Enabled(Value: WordBool);
begin
Enabled := Value;
end;

procedure TActiveFormX.Set_Font(const Value: IFontDisp);
begin
SetOleFont(Font, Value);
end;

procedure TActiveFormX.Set_HelpFile(const Value: WideString);
begin
HelpFile := String(Value);
end;

procedure TActiveFormX.Set_HelpKeyword(const Value: WideString);
begin
HelpKeyword := String(Value);
end;

procedure TActiveFormX.Set_HelpType(Value: TxHelpType);
begin
HelpType := THelpType(Value);
end;

procedure TActiveFormX.Set_KeyPreview(Value: WordBool);
begin
KeyPreview := Value;
end;

procedure TActiveFormX.Set_PixelsPerInch(Value: Integer);
begin
PixelsPerInch := Value;
end;

procedure TActiveFormX.Set_PrintScale(Value: TxPrintScale);
begin
PrintScale := TPrintScale(Value);
end;

procedure TActiveFormX.Set_Scaled(Value: WordBool);
begin
Scaled := Value;
end;

procedure TActiveFormX.Set_Visible(Value: WordBool);
begin
Visible := Value;
end;

procedure TActiveFormX.TestOnMessage(const Test: string);
begin
showmessage(Test);
end;

procedure TActiveFormX.ActiveFormCreate(Sender: TObject);
begin
TestObj:= TTest.Create(Self);
TestObj.OnMessage:= TestOnMessage;
end;

procedure TActiveFormX.ActiveFormDestroy(Sender: TObject);
begin
TestObj.Free;
end;

procedure TActiveFormX.Button1Click(Sender: TObject);
begin
TestObj.DoTest;
end;

initialization
TActiveFormFactory.Create(
ComServer,
TActiveFormControl,
TActiveFormX,
Class_ActiveFormX,
1,
'',
OLEMISC_SIMPLEFRAME or OLEMISC_ACTSLIKELABEL,
tmApartment);
end.


//[red]线程所在的模块见下边[/red]unit Unit2;
interface
uses
Classes, Dialogs;
type
TOnMessage= Procedure(const Test: string) of Object;
TTest= class;
TTestThread = class(TThread)
private
FOwnerObj: TTest;
syncMsg: string;
procedure syncOnMessage;
protected
Constructor Create(OwnerObj: TTest);
procedure Execute;
override;
end;

TTest= class(TComponent)
private
FOnMessage: TOnMessage;
public
proceduredo
Test;
published
property OnMessage: TOnMessage read FOnMessage write FOnMessage;
end;

implementation
Constructor TTestThread.Create(OwnerObj: TTest);
begin
inherited Create(False);
FOwnerObj:= OwnerObj;
FreeOnTerminate:= True;
end;

procedure TTestThread.Execute;
begin
//在线程内部触发的事件，
//在普通的 Application 没问题，
//但是在 Active Form 中却触发不了
if assigned(FOwnerObj.FOnMessage) then
begin
syncMsg:= 'test in thread';
Synchronize(syncOnMessage);
end;
end;

procedure TTestThread.syncOnMessage;
begin
FOwnerObj.FOnMessage(syncMsg);
end;

procedure TTest.DoTest;
var
TestThread: TTestThread;
begin
TestThread:= TTestThread.Create(Self);
{//这部分可以正确执行
if assigned(FOnMessage) then
begin
FOnMessage('test indo
Test');
end;
}
end;

end.

没人知道？