Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

DELPHIµ÷ÓÃVC±àдµÄDLL º¯Êý²ÎÊýΪLPTSTR

×¢Òâµã£ºLPTSTR ¶ÔÓ¦µÄÊÇPAnsiChar »òÕßPWideChar ÄãÎÊÎÊËûµÄ±àÒëÑ¡Ïî,ÒªÊǶ¨ÒåÁËunicode¾ÍÊÇPWideChar ·ñÔòÊÇPAnsiChar
ÕâÀïÎÒÊÇÓÃUNICODE±à³ÌµÄ£¬ËùÒÔÓõ½µÄÊÇPWideChar
ÔÚVCдµÄA.dllÀïÌí¼ÓÒ»¸öº¯ÊýΪ
extern "C" __declspec(dllexport) LPTSTR WINAPI Do(LPTSTR i)
{
return i;
}
ÔÚDELPHIµ÷ÓÃΪ
type
TDoFunc=function(str:PWideChar) :PWideChar;stdcall;
var
Th:Thandle;
TDo:TDoFunc;
Tp:TFarProc;
str:PWideChar;
strA,strB:PWideChar;
begin
Th:=LoadLibrary('A.dll'); {×°ÔØDLL}
if Th>0 then
try
Tp:=GetProcAddress(Th,PChar('_Do@4'));
if Tp<>nil
then begin
TDo:=TDoFunc(Tp);
strA:='bread';
str:=TDo(strA);
ShowMessage(str);
end
else
ShowMessage('ûÓÐÕÒµ½º¯Êý');
finally
FreeLibrary(Th); {ÊÍ·ÅDLL}
end
else
ShowMessage('dllÎļþûÕÒµ½');
end;
ÕâÑù¾ÍOKÁË£¬(*^__^*) ÎûÎû
ºÃ¿ªÐÄŶ£¬ÓÖ½â¾öÁËÒ»¸öÎÊÌâ


Ïà¹ØÎĵµ£º

DELPHIÃæÏò¶ÔÏó²Î¿¼


Ò»¡¢ÀàºÍ¶ÔÏó
ÀàÊǶÔÏóµÄÀàÐÍ£¬ÊÇ´´½¨¶ÔÏóµÄÄ£°å¡£Ò»¸öÀà¿ÉÒÔ´´½¨¶à¸ö¶ÔÏ󣬶øÒ»¸ö¶ÔÏó×ÜÊÇÊôÓÚij¸öÀà¡£Àà¾ßÓÐÄÚ²¿µÄÊôÐÔ£¨×´Ì¬£©ºÍÐÐΪ£¨²Ù×÷£©¡£
¶ÔÏóÊÇÀàµÄʵÀý£¬¾ßÓÐÇø±ðÓÚͬÀàÆäËû¶ÔÏóµÄÊôÐÔ¼¯ºÏ¡£
¶ÔÏóµÄÉùÃ÷´æ·ÅÓÚ¶ÑÕ»£¬¶ÔÏóµÄÒýÓôæ·ÅÓÚ¶Ñ¡£
¶þ¡¢ÀàµÄ·½·¨·ÖÀà
1¡¢  ÆÕͨ·½·¨
²»¼ÓÈκÎÐÞÊε ......

delphi DataSnap³²×´Ö÷´Ó±íʵÏÖ

·þÎñ¶Ë£ºÌí¼ÓADOConnection£¬ADOQuery1£¬ADOQuery2¡£ÉèÖÃADOQuery1ΪÖ÷±í£¬ADOQuery2Ϊ´Ó±í¡£(ͨ¹ý  ADOQuery2.SQL.Text:= 'select * from ´Ó±í where FKID=:Ö÷±íPKID'ÉèÖÃ)¡£Ìí¼ÓDataSetProvider1ºÍDataSetProvider2·Ö±ðÁ¬½Óµ½ADOQuery1ºÍADOQuery2¡£
¿Í»§¶Ë£ºÌí¼ÓClientDataSet1£¬ClientDataSet2¡£ClientDataS ......

Delphi³£ÓôúÂë»ã×Ü

¡ó[DELPHI]²úÉúÊó±êÍ϶¯Ð§¹û
ͨ¹ýMouseMoveʼþ¡¢DragOverʼþ¡¢EndDragʼþʵÏÖ£¬ÀýÈçÔÚPANELÉϵÄLABEL£º
var xpanel,ypanel,xlabel,ylabel:integer;
PANELµÄMouseMoveʼþ£ºxpanel:=x;ypanel:=y;
PANELµÄDragOverʼþ£ºxpanel:=x;ypanel:=y;
LABELµÄMouseMoveʼþ£ºxlabel:=x;ylabel:=y;
LABELµÄEndDragʼþ£ºlabel ......

Delphi Óë C/C++ Êý¾ÝÀàÐͶÔÕÕ±í

Delphi Óë C/C++ Êý¾ÝÀàÐͶÔÕÕ±í
DelphiÊý¾ÝÀàÐÍC/C++
ShorInt
8λÓзûºÅÕûÊý
char
Byte
8λÎÞ·ûºÅÕûÊý
BYTE,unsigned short
SmallInt
16λÓзûºÅÕûÊý
short
Word
16λÎÞ·ûºÅÕûÊý
unsigned short
Integer,LongInt
32λÓзûºÅÕûÊý
int,long
Cardinal,LongWord/DWORD
32λÎÞ·ûºÅÕûÊý
unsigned long
Int6 ......

delphi stringÀàÐÍתintegerʱ³ö´íµÄ¼ì²â

procedure TForm1.Button1Click(Sender: TObject);
Var
  Num: Integer;
Begin
  Try
    Num:=StrToInt(Edit1.Text);
    Edit2.Text:=IntToStr(Num*Num);
  Except
    On EConvertError Do   ShowMessage(Edit1.Text+'ÎÞ·¨×ª³ÉÕûÊý!'); ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ