Delphi¶àÏß³Ìѧϰ£¨2£©£ºDelphiÖеĶàÏß³ÌÀàTThread¡£
2010-02-22 17:08:46
Delphi°Ñ¶àÏß³ÌÏà¹ØµÄAPI·â×°ÔÚTThreadÕâ¸öÀàÖУ¬¿ÉÒÔ·½±ãʵÏÖ¶àÏß³ÌÔËÓá£Ê×ÏÈ¿´ÏÂTThreadµÄÉùÃ÷£º
TThread = class
private
FHandle: THandle;
FThreadID: THandle;
FCreateSuspended: Boolean;
FTerminated: Boolean;
FSuspended: Boolean;
FFreeOnTerminate: Boolean;
FFinished: Boolean;
FReturnValue: Integer;
FOnTerminate: TNotifyEvent;
FSynchronize: TSynchronizeRecord;
FFatalException: TObject;
procedure CallOnTerminate;
class procedure Synchronize(ASyncRec: PSynchronizeRecord); overload;
function GetPriority: TThreadPriority;
procedure SetPriority(Value: TThreadPriority);
procedure SetSuspended(Value: Boolean);
protected
procedure CheckThreadError(ErrCode: Integer); overload;
procedure CheckThreadError(Success: Boolean); overload;
procedure DoTerminate; virtual;
procedure Execute; virtual; abstract;
procedure Synchronize(Method: TThreadMethod); overload;
property ReturnValue: Integer read FReturnValue write FReturnValue;
property Terminated: Boolean read FTerminated;
public
constructor Create(CreateSuspended: Boolean);
destructor Destroy; override;
procedure AfterConstruction; override;
procedure Resume;
procedure Suspend;
procedure Terminate;
function WaitFor: LongWord;
class procedure Synchronize(AThread: TThread; AMethod: TThreadMethod); overload;
class procedure StaticSynchronize(AThread: TThread; AMethod: TThreadMethod);
property FatalException: TObject read FFatalException;
property FreeOnTerminate: Boolean read FFreeOnTerminate write FFreeOnTerminate;
property Handle: THandle read FHandle;
property Priority: TThreadPriority read GetPriority write SetPriority;
property Suspended: Boolean read FSuspended write SetSuspended;
property ThreadID: THandle read FThreadID;
property OnTerminate: TNotifyEvent read FOnTerminate write FOnTerminate;
end;
ÓÉÓÚTThreadÊÇÒ»¸ö³éÏóÀ࣬ËùÒÔ
Ïà¹ØÎĵµ£º
ÔÚ±àÒëdelphi³ÌÐòʱ»á³öÏÖÔÚЩÌáʾ£¬È«ÊÇEÎĵģ¬ÏÖÔÚ¸ø´ó¼ÒÒ»¸ö¶ÔÕÕ±í£¬¿ÉÒÔ¸üºÃµÄÀí½â´íÎóÌáʾÐÅÏ¢£¡
';' not allowed before 'ELSE' ElSEǰ²»ÔÊÐíÓГ;”
'' clause not allowed in OLE automation section ÔÚOLE×Ô¶¯Çø¶Î²»ÔÊÐí“”×Ó¾ä
'' is not a type identifier ²»ÊÇÀàÐͱêʶ·û
'' not prev ......
·½·¨1£º¿ÉдΪº¯Êý£¬ÔÙµ÷ÓÃ
Application.CreateForm(TForm1, Form1);
Form1.ShowModal;
Form1.Free;
·½·¨2£º
Form1:= TForm1.Create(Application);
try
Form1.ShowModal;
finally
  ......
Ò»¸öÑ¡µ¥´óÖÂÊÇÕâÑù£º
1.¿ÉÒÔ±»ÒÔijÖÖÐÎʽºô½Ð³öÀ´£¬Èç°´ÏÂesc£»
2.ÔÚÕâ¸öÑ¡µ¥Öй¦ÄܼüÓв»Í¬µÄ¶¨Ò壬ÈçÔ±¾·½Ïò¼ü¿ØÖÆ×ß·£¬µ«ÏÖÔÚ¸ÄΪ¿ØÖƹâ±êµÄλÖã»
3.°´ÏÂÈ·¶¨¼üºóÓжÔÓ¦¹¦Äܱ»Ö´ÐУ»
4.¿ÉÒÔ±»¹Ø±Õ¡£
ÄÇôÎҵİ취ÊDZàдÁ½¸ö×ӳ̣¬ÆäÖÐÒ»¸ö´¦ÀíÑ¡µ¥ÖеÄʼþ£¬ÁíÍâÒ»¸öרߺÔð»Ñ¡µ¥¡£
ÔÚ´Ó²½ÐÐÇл»µ½Ñ¡µ¥ ......
¹ØÓÚdelphi Assigned
1.¸ù¾Ý Delphi Ö¸Áî²Î¿¼ÊÖ²áÖÐ
˵Ã÷£º
Assigned º¯Ê½ÔÚ²ÎÊý²»Îªnilʱ´«»ØTrue,±íʾָÕëÒѾָµ½Ä³¸öÄÚ´æµØÖ·£¬Õâ¸öÄÚ´æµØÖ·¿ÉÄÜÊÇÒ»¸ö¶ÔÏóµØÊ×µØÖ·£¬Ò²¿ÉÄÜÔÚº¯Êý»ò¹ý³ÌÖУ¬ÉùÃ÷Ò»¸öÖ¸Õë±äÁ¿£¬Ã»Óи³ÖµÎªnil £¬ÎÞÂÒµÄÖ¸Ïòij´¦£¬ÕâÁ½¸öÖÖÇé¿ö£¬Assigned£¨Ö¸Õë±äÁ¿£©¶¼²»Îªnil , º¯Êý·Å»ØTrue£»
¶ø² ......
http://www.91v1.cn/bbs/read.php?tid-1797.html
ÎÒÃÇÌṩµÄÊÇÈ«Ì×,ĿǰËûÃÇ·¢µÄ.ÉçÇøÒÑÂ¼ÖÆÍê±Ï.Ò»¸ùë²»ÉÙ.
-------------------------------------------------------------------------------------------------------------------------
¸Ã½Ì³ÌÓÉ91v1ÉçÇøÃâ·ÑÌṩ.¾ßÌåÃâ·ÑÁìÂëÏêÇé¹Û¿´ÖÖ×Ó°ü,
--------------- ......