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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;
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function ValidatePID(const APID: string): string;
{ÄÚ²¿º¯Êý,È¡Éí·ÝÖ¤ºÅУÑéλ,×îºóһλ,¶Ô18λÓÐЧ}
function GetVerifyBit(sIdentityNum: string): Char;
var
    nNum: Integer;
begin
    Result := #0;
    nNum := StrToInt(sIdentityNum[1]) * 7 +
  ......

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uses 
    Windows,  
    SysUtils,  
    Classes,  
    ShellAPI;  
function RunAndWait(FileName: string; Visibility: Integer): THandle;&nbs ......

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2¡¢ÔËÐгÌÐòǰ¸´ÖÆpcrelib.dllµ½C:\WINDOWSÏ ......

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Delphi µÄ×Ö·û¼°×Ö·û´®[

Delphi µÄ×Ö·û¼°×Ö·û´®[1] - string¡¢AnsiString¡¢WideString¡¢String[n]¡¢ShortString
2008-10-17 14:57:17
//×î³£ÓÃµÄ string
var
  str: string;   {¶¨Òå}
begin
  str := 'ÍòÒ»'; {¸³Öµ}
  ShowMessage(IntToStr(Length(str))); {³¤¶ÈÊÇ: 4}
end;
//³¤×Ö·û´® AnsiString; ÔÚµ±Ç°°æ± ......
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