我試圖從一個dwscript如何使用dwscript調用CreateOleObject函數?
function GetFileVersion(const FileName: string): string;
var
V : OleVariant;
begin
V := CreateOleObject('Scripting.FileSystemObject');
Result := V.GetFileVersion(FileName);
end;
內執行該代碼(這是爲了使用CreateOleObject最小樣品)到目前爲止,我想這
{$APPTYPE CONSOLE}
{$R *.res}
uses
SysUtils,
ComObj,
ActiveX,
dwsComp,
dwsCompiler,
dwsExprs,
dwsCoreExprs;
procedure Execute;
var
LScript: TDelphiWebScript;
LUnit: TdwsUnit;
LProg: IdwsProgram;
LExec: IdwsProgramExecution;
begin
LScript := TDelphiWebScript.Create(NIL);
LUnit := TdwsUnit.Create(NIL);
try
LUnit.UnitName := 'Foo';
LUnit.Script := LScript;
// compile a simple script
LProg := LScript.Compile(
'function GetFileVersion(const FileName: string): string;'+sLineBreak+
'var'+sLineBreak+
' V : Variant;'+sLineBreak+
'begin'+sLineBreak+
' V := CreateOleObject(''Scripting.FileSystemObject'');'+sLineBreak+
' Result := V.GetFileVersion(FileName);'+sLineBreak+
'end;'+sLineBreak+
''+sLineBreak+
'PrintLn(GetFileVersion(''Foo''));'+sLineBreak+
''
);
if LProg.Msgs.HasErrors then begin
Writeln(LProg.Msgs.AsInfo);
Exit;
end;
try
LExec := LProg.Execute;
except
on E: Exception do
WriteLn(E.Message + sLineBreak + LExec.Msgs.AsInfo);
end;
Writeln(LExec.Result.ToString);
finally
LScript.Free;
end;
end;
begin
try
Execute;
Readln;
except
on E: Exception do
Writeln(E.ClassName, ': ', E.Message);
end;
end.
但我是得到這個錯誤信息
Syntax Error: Unknown name "CreateOleObject" [line: 5, column: 8]
問題是我怎麼能用dwscript執行CreateOleObject
函數?
UPDATE
繼Linas建議,我終於可以解決這個問題。
這是一個示例應用程序的工作
uses
SysUtils,
ComObj,
ActiveX,
dwsComp,
dwsCompiler,
dwsExprs,
dwsComConnector,
dwsCoreExprs;
procedure Execute;
var
LScript: TDelphiWebScript;
LUnit: TdwsUnit;
LProg: IdwsProgram;
LExec: IdwsProgramExecution;
LdwsComConnector : TdwsComConnector;
begin
LScript := TDelphiWebScript.Create(NIL);
LdwsComConnector:=TdwsComConnector.Create(nil);
LdwsComConnector.Script:=LScript;
LUnit := TdwsUnit.Create(NIL);
try
LUnit.UnitName := 'Foo';
LUnit.Script := LScript;
// compile a simple script
LProg := LScript.Compile(
'function GetFileVersion(const FileName: string): string;'+sLineBreak+
'var'+sLineBreak+
' V : OleVariant;'+sLineBreak+
'begin'+sLineBreak+
' V := CreateOleObject(''Scripting.FileSystemObject'');'+sLineBreak+
' Result := VarToStr(V.GetFileVersion(FileName));'+sLineBreak+
'end;'+sLineBreak+
''+sLineBreak+
'PrintLn(GetFileVersion(''C:\Bar\Foo.exe''));'+sLineBreak+
''
);
if LProg.Msgs.HasErrors then begin
Writeln(LProg.Msgs.AsInfo);
Exit;
end;
try
LExec := LProg.Execute;
except
on E: Exception do
WriteLn(E.Message + sLineBreak + LExec.Msgs.AsInfo);
end;
Writeln(LExec.Result.ToString);
finally
LScript.Free;
LdwsComConnector.Free;
end;
end;
begin
try
CoInitialize(nil);
try
Execute;
Readln;
finally
CoUninitialize;
end;
except
on E:Exception do
Writeln(E.Classname, ':', E.Message);
end;
end.
使用dwsComConnector? – 2012-03-14 18:08:22
我剛剛添加該單位,具有相同的結果:(。 – Salvador 2012-03-14 18:18:29
我在這裏猜測,但把這個使用指令在你的文件中:'使用Windows,類,SysUtils,dwsComp,dwsCompiler,dwsExprs, dwsComConnector,Variants,ActiveX ,ComObj,dwsXPlatform,dwsUtils;' – 2012-03-14 18:25:09