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Delphi¶¯Ì¬Ê¼þÉîÈë·ÖÎö
2009-2-7
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Ê×ÏÈ×öÒ»¸ö¿Õ´°Ì壬·ÅÈëÒ»Button¡£
ÔÚimplementationÏÂÃæÉùÃ÷Á½¸ö·½·¨ÈçÏ£º
//Íⲿ·½·¨£¬Ö»ÉùÃ÷Ò»¸ö²ÎÊý£¬´Ëʱ°´ÕÕ±ê×¼µÄ¶ÔÏóÄÚ²¿Ê¼þ·½·¨TNotifyEventÉùÃ÷,´ËÉùÃ÷ÖУ¬SenderÔò¶ÔӦΪ²úÉú¸ÃʼþµÄ¶ÔÏóÖ¸Õë¡£
procedure ExtClick1(Sender: TObject);
begin
{asm
mov eax,[edx+8]
call showmessage
end; }
showmessage(TComponent(Sender).Name);
end;

//Íⲿ·½·¨£¬ÉùÃ÷Á½¸ö²ÎÊý,ÓÃÀ´Ö¤Ã÷£¬¶ÔÏóÔÚµ÷ÓÃʱºò»á´«µÝÒ»¸öSelfÖ¸Õ룬´ËʱÎÒÃǼÙÉèFrmÊÇͨ¹ýÀà¶ÔÏ󴫵ݹýÀ´µÄSelfÖ¸Õ룬¶øSenderΪ²úÉú¸ÃʼþµÄ¶ÔÏóÖ¸Õë
procedure ExtClick(Frm: TObject;Sender: TObject);
begin
{asm
mov eax,[edx+8]
call showmessage
end; }
showmessage(TComponent(Sender).Name);
if Frm is TForm then
TForm(Frm).Close
end;

//È»ºóÔÚ ‘Ö¸¶¨µ÷ÓÃ’°´Å¤Ê¼þÖÐд´úÂ룺
procedure TForm1.Button1Click(Sender: TObject);
begin
showmessage(TComponent(Sender).Name);
end;

//ºÜÏÔÈ»ÔËÐеÄʱºò£¬µã¸Ã°´Å¤µÃµ½µÄÊÇ·µ»ØÒ»¸ö ÏûÏ¢ÄÚÈÝΪ ‘Button1’µÄ¶Ô»°¿ò£¬ÕâÊǵ÷ÓÃForm1ÀàµÄ¶ÔÏóʼþ´¥·¢µÄ·½·¨¡£
//ÔÚµ÷Óà ‘µ÷ÓÃFormÀàÍⲿ·½·¨´¥·¢Ê¼þ’ ClickʼþÖÐд
procedure TForm1.Button2Click(Sender: TObject);
var
ExtClickEvent: TNotifyEvent;
begin
integer(@ExtClickEvent) := integer(@ExtClick1);
//½«ExtClickEventµØÖ·Ö¸ÕëÖ¸ÏòÍⲿº¯ÊýExtClick1·½·¨µÄµØÖ·
Button1.OnClick := ExtClickEvent;
//½«¸ÃµØÖ·¸³Öµ¸ø Button1µÄOnClickʼþÌæ»»ÒÔÇ°µÄOnClickʼþ
end;

//ÁíÒ»¸ö°´Å¤Ð´´úÂëÈçÏ£º
procedure TForm1.Button3Click(Sender: TObject);
begin
Button1.OnClick := Button1Click;//»¹Ô­Îª¶ÔÏóÄÚ´¥·¢Ê¼þº¯Êý
end;

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showmessage(TComponent(Sender).Name);·µ»ØµÄÖµÊÇ ‘Form1’£¬´ËʱÊÇ·ñ¾ÍÒѾ­ËµÃ÷ÁËÆäµÚÒ»¸ö²ÎÊýÊÇ·ñ¾ÍÊÇ´«µÝµÄÒ»¸öSelfÖ¸ÕëÄØ¡£ËùÒÔÔÚµ÷ÓÃButton.ClickʼþµÄʱºò´«µÝ¹ýÀ´µÄµÚÒ»¸ö²ÎÊýΪForm1ÄÚ²¿µÄSelfÖ¸Õ룬


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procedure TRealOneFrm.OpenBtnClick(Sender: TObject);
begin
if OpenRMDlg.Execute then
begin
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RealAudio1.DoPlay;
EndPos ......

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unit QDialogs;
{$IFDEF LINUX}
function SelectDirectory(const Caption, Root: WideString;
  var Directory: WideString; ShowHidden: Boolean = False): Boolean;
{$ENDIF}
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