demo_intf.htm

来自「Delphi脚本控件」· HTM 代码 · 共 294 行

HTM
294 行
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<head>
<link rel=stylesheet type="text/css" href="styles.css">
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<body>

<h3>
Importing Interface types.
</h3>
<hr>


<h4>
Delphi code:
</h4>



<blockquote>

<pre>
<font color="blue"><b>unit</b></font> Intf;
<font color="blue"><b>interface</b></font>
<font color="blue"><b>uses</b></font>
  SysUtils, Classes, Dialogs;

<font color="blue"><b>type</b></font>
  ITest = <font color="blue"><b>interface</b></font>
  [<font color="Red">'{E7AA427A-0F4D-4A96-A914-FAB1CA336337}'</font>]
    <font color="blue"><b>function</b></font> GetProp: <font color="blue"><b>String</b></font>;
    <font color="blue"><b>procedure</b></font> SetProp(Value: <font color="blue"><b>String</b></font>);
    <font color="blue"><b>procedure</b></font> Proc; <font color="blue"><b>overload</b></font>;
    <font color="blue"><b>procedure</b></font> Proc(A: Integer); <font color="blue"><b>overload</b></font>;
    <font color="blue"><b>procedure</b></font> Proc2; <font color="blue"><b>cdecl</b></font>;
    <font color="blue"><b>property</b></font> Prop: <font color="blue"><b>String</b></font> <font color="blue"><b>read</b></font> GetProp <font color="blue"><b>write</b></font> SetProp;
  <font color="blue"><b>end</b></font>;

  TTest = <font color="blue"><b>class</b></font>(TInterfacedObject, ITest)
  <font color="blue"><b>private</b></font>
    fStr: <font color="blue"><b>String</b></font>;
    <font color="blue"><b>function</b></font> GetProp: <font color="blue"><b>String</b></font>;
    <font color="blue"><b>procedure</b></font> SetProp(Value: <font color="blue"><b>String</b></font>);
  <font color="blue"><b>public</b></font>
    <font color="blue"><b>constructor</b></font> Create;
    <font color="blue"><b>destructor</b></font> Destroy; <font color="blue"><b>override</b></font>;
    <font color="blue"><b>procedure</b></font> Proc; <font color="blue"><b>overload</b></font>;
    <font color="blue"><b>procedure</b></font> Proc(A: Integer); <font color="blue"><b>overload</b></font>;
    <font color="blue"><b>procedure</b></font> Proc2; <font color="blue"><b>cdecl</b></font>;
    <font color="blue"><b>property</b></font> Prop: <font color="blue"><b>String</b></font> <font color="blue"><b>read</b></font> GetProp <font color="blue"><b>write</b></font> SetProp;
  <font color="blue"><b>end</b></font>;


<font color="blue"><b>implementation</b></font>

<font color="blue"><b>function</b></font> TTest.GetProp: <font color="blue"><b>String</b></font>;
<font color="blue"><b>begin</b></font>
  result := fStr;
<font color="blue"><b>end</b></font>;

<font color="blue"><b>procedure</b></font> TTest.SetProp(Value: <font color="blue"><b>String</b></font>);
<font color="blue"><b>begin</b></font>
  fStr := Value;
<font color="blue"><b>end</b></font>;

<font color="blue"><b>procedure</b></font> TTest.Proc;
<font color="blue"><b>begin</b></font>
  ShowMessage(fstr);
<font color="blue"><b>end</b></font>;

<font color="blue"><b>procedure</b></font> TTest.Proc(A: Integer);
<font color="blue"><b>begin</b></font>
  ShowMessage(IntToStr(A));
<font color="blue"><b>end</b></font>;

<font color="blue"><b>procedure</b></font> TTest.Proc2;
<font color="blue"><b>begin</b></font>
  ShowMessage(<font color="Red">'2'</font>);
<font color="blue"><b>end</b></font>;

<font color="blue"><b>constructor</b></font> TTest.Create;
<font color="blue"><b>begin</b></font>
  fStr := <font color="Red">'abc'</font>;
<font color="blue"><b>end</b></font>;

<font color="blue"><b>destructor</b></font> TTest.Destroy;
<font color="blue"><b>begin</b></font>
  ShowMessage(<font color="Red">'Done'</font>);
  <font color="blue"><b>inherited</b></font>;
<font color="blue"><b>end</b></font>;

<font color="blue"><b>end</b></font>.
</pre>
</blockquote>

<h4>
Code, generated by paxScript Importer:
</h4>


<blockquote>

<pre>
<font color="blue"><b>unit</b></font> IMP_Intf;
<font color="blue"><b>interface</b></font>
<font color="blue"><b>uses</b></font>
  SysUtils,
  Classes,
  Dialogs,
  Intf,
  BASE_SYS,
  BASE_EXTERN,
  PaxScripter;
<font color="blue"><b>procedure</b></font> RegisterIMP_Intf;
<font color="blue"><b>implementation</b></font>
<font color="blue"><b>procedure</b></font> TTest_Proc3(MethodBody: TPAXMethodBody);
<font color="blue"><b>begin</b></font>
  <font color="blue"><b>with</b></font> MethodBody <font color="blue"><b>do</b></font>
TTest(Self).Proc();
<font color="blue"><b>end</b></font>;
<font color="blue"><b>procedure</b></font> TTest_Proc4(MethodBody: TPAXMethodBody);
<font color="blue"><b>begin</b></font>
  <font color="blue"><b>with</b></font> MethodBody <font color="blue"><b>do</b></font>
TTest(Self).Proc(Params[0].AsInteger);
<font color="blue"><b>end</b></font>;
<font color="blue"><b>procedure</b></font> TTest_Proc2(MethodBody: TPAXMethodBody);
<font color="blue"><b>begin</b></font>
  <font color="blue"><b>with</b></font> MethodBody <font color="blue"><b>do</b></font>
TTest(Self).Proc2();
<font color="blue"><b>end</b></font>;
<font color="blue"><b>function</b></font> TTest__GetProp(Self:TTest):<font color="blue"><b>String</b></font>;
<font color="blue"><b>begin</b></font>
  result := Self.Prop;
<font color="blue"><b>end</b></font>;
<font color="blue"><b>procedure</b></font> TTest__PutProp(Self:TTest;<font color="blue"><b>const</b></font> Value: <font color="blue"><b>String</b></font>);
<font color="blue"><b>begin</b></font>
  Self.Prop := Value;
<font color="blue"><b>end</b></font>;
<font color="blue"><b>procedure</b></font> RegisterIMP_Intf;
<font color="blue"><b>var</b></font> H: Integer;
<font color="blue"><b>begin</b></font>
  H := RegisterNamespace(<font color="Red">'Intf'</font>, -1);
  // <font color="blue"><b>Begin</b></font> <font color="blue"><b>of</b></font> <font color="blue"><b>interface</b></font> ITest
  RegisterInterfaceType(<font color="Red">'ITest'</font>,ITest,<font color="Red">'IUnknown'</font>,IUnknown,H);
  RegisterInterfaceMethod(ITest,
       <font color="Red">'function GetProp: String;'</font>);
  RegisterInterfaceMethod(ITest,
       <font color="Red">'procedure SetProp(Value: String);'</font>);
  RegisterInterfaceMethod(ITest,
       <font color="Red">'procedure Proc; overload;'</font>);
  RegisterInterfaceMethod(ITest,
       <font color="Red">'procedure Proc(A: Integer); overload;'</font>);
  RegisterInterfaceMethod(ITest,
       <font color="Red">'procedure Proc2; cdecl;'</font>);
  RegisterInterfaceProperty(ITest,<font color="Red">'property Prop: String read GetProp write SetProp;'</font>);
  // <font color="blue"><b>End</b></font> <font color="blue"><b>of</b></font> <font color="blue"><b>interface</b></font> ITest
  // <font color="blue"><b>Begin</b></font> <font color="blue"><b>of</b></font> <font color="blue"><b>class</b></font> TTest
  RegisterClassType(TTest, H);
  RegisterMethod(TTest,
       <font color="Red">'constructor Create;'</font>,
       @TTest.Create);
  RegisterMethod(TTest,
       <font color="Red">'destructor Destroy; override;'</font>,
       @TTest.Destroy);
  RegisterStdMethodEx(TTest,<font color="Red">'Proc'</font>,TTest_Proc3,0,[typeVARIANT]);
  RegisterStdMethodEx(TTest,<font color="Red">'Proc'</font>,TTest_Proc4,1,[typeINTEGER,typeVARIANT]);
  RegisterStdMethodEx(TTest,<font color="Red">'Proc2'</font>,TTest_Proc2,0,[typeVARIANT]);
  RegisterMethod(TTest,
       <font color="Red">'function TTest__GetProp(Self:TTest):String;'</font>,
       @TTest__GetProp, true);
  RegisterMethod(TTest,
       <font color="Red">'procedure TTest__PutProp(Self:TTest;const Value: String);'</font>,
       @TTest__PutProp, true);
  RegisterProperty(TTest,
       <font color="Red">'property Prop:String read TTest__GetProp write TTest__PutProp;'</font>);
  // <font color="blue"><b>End</b></font> <font color="blue"><b>of</b></font> <font color="blue"><b>class</b></font> TTest
<font color="blue"><b>end</b></font>;
<font color="blue"><b>initialization</b></font>
  RegisterIMP_Intf;
<font color="blue"><b>end</b></font>.
</pre>
</blockquote>

<h4>
Demo application:
</h4>



<blockquote>

<pre>
<font color="blue"><b>unit</b></font> Unit1;

<font color="blue"><b>interface</b></font>

<font color="blue"><b>uses</b></font>
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms,
  Dialogs, BASE_SYS, BASE_PARSER, PaxScripter, PaxPascal, StdCtrls,

  Intf, IMP_Intf;

<font color="blue"><b>type</b></font>
  TForm1 = <font color="blue"><b>class</b></font>(TForm)
    Button1: TButton;
    PaxScripter1: TPaxScripter;
    PaxPascal1: TPaxPascal;
    <font color="blue"><b>procedure</b></font> Button1Click(Sender: TObject);
    <font color="blue"><b>procedure</b></font> PaxScripter1AssignScript(Sender: TPaxScripter);
    <font color="blue"><b>procedure</b></font> FormCreate(Sender: TObject);
  <font color="blue"><b>private</b></font>
    { <font color="blue"><b>Private</b></font> declarations }
    hostobj: ITest;
  <font color="blue"><b>public</b></font>
    { <font color="blue"><b>Public</b></font> declarations }
  <font color="blue"><b>end</b></font>;

<font color="blue"><b>var</b></font>
  Form1: TForm1;

<font color="blue"><b>implementation</b></font>

{$R *.dfm}

<font color="blue"><b>uses</b></font>
  IMP_SysUtils;

<font color="blue"><b>procedure</b></font> GetIntf(<font color="blue"><b>out</b></font> Obj: ITest);
<font color="blue"><b>begin</b></font>
  obj := TTest.Create;
<font color="blue"><b>end</b></font>;

<font color="blue"><b>procedure</b></font> TForm1.Button1Click(Sender: TObject);
<font color="blue"><b>begin</b></font>
  hostobj := TTest.Create;
  PaxScripter1.Run;
<font color="blue"><b>end</b></font>;

<font color="blue"><b>procedure</b></font> TForm1.PaxScripter1AssignScript(Sender: TPaxScripter);
<font color="blue"><b>begin</b></font>
  Sender.AddModule(<font color="Red">'1'</font>, <font color="Red">'paxPascal'</font>);
  Sender.AddCode(<font color="Red">'1'</font>, <font color="Red">'uses SysUtils, Intf;'</font>);
  Sender.AddCode(<font color="Red">'1'</font>, <font color="Red">'var I: ITest;'</font>);
  Sender.AddCode(<font color="Red">'1'</font>, <font color="Red">'var X: TTest;'</font>);

  Sender.AddCode(<font color="Red">'1'</font>, <font color="Red">'procedure P;'</font>);
  Sender.AddCode(<font color="Red">'1'</font>, <font color="Red">'var L: ITest;'</font>);
  Sender.AddCode(<font color="Red">'1'</font>, <font color="Red">'begin'</font>);
  Sender.AddCode(<font color="Red">'1'</font>, <font color="Red">'  hostobj.QueryInterface(IUnknown, L);'</font>);
  Sender.AddCode(<font color="Red">'1'</font>, <font color="Red">'  print <font color="Red">"RefCount = "</font> + IntToStr(IntfRefCount(hostobj));'</font>);
  Sender.AddCode(<font color="Red">'1'</font>, <font color="Red">'  print <font color="Red">"RefCount = "</font> + IntToStr(IntfRefCount(L));'</font>);
  Sender.AddCode(<font color="Red">'1'</font>, <font color="Red">'  hostobj.Proc();'</font>); 
  Sender.AddCode(<font color="Red">'1'</font>, <font color="Red">'  hostobj := nil;'</font>);
  Sender.AddCode(<font color="Red">'1'</font>, <font color="Red">'  print <font color="Red">"RefCount = "</font> + IntToStr(IntfRefCount(L));'</font>);
  Sender.AddCode(<font color="Red">'1'</font>, <font color="Red">'end;'</font>);
  Sender.AddCode(<font color="Red">'1'</font>, <font color="Red">'P();'</font>);

  Sender.AddCode(<font color="Red">'1'</font>, <font color="Red">'X := TTest.Create;'</font>);
  Sender.AddCode(<font color="Red">'1'</font>, <font color="Red">'if X.GetInterface(ITest, I) then'</font>); 
  Sender.AddCode(<font color="Red">'1'</font>, <font color="Red">'begin'</font>);
  Sender.AddCode(<font color="Red">'1'</font>, <font color="Red">'  print <font color="Red">"RefCount = "</font> + IntToStr(IntfRefCount(I));'</font>);
  Sender.AddCode(<font color="Red">'1'</font>, <font color="Red">'  I.Proc();'</font>);
  Sender.AddCode(<font color="Red">'1'</font>, <font color="Red">'  I.Proc(10);'</font>);
  Sender.AddCode(<font color="Red">'1'</font>, <font color="Red">'  I.Proc2();'</font>);
  Sender.AddCode(<font color="Red">'1'</font>, <font color="Red">'  I.Prop := <font color="Red">"pqr"</font>;'</font>);
  Sender.AddCode(<font color="Red">'1'</font>, <font color="Red">'  print I.Prop;'</font>); 
  Sender.AddCode(<font color="Red">'1'</font>, <font color="Red">'end;'</font>);
<font color="blue"><b>end</b></font>;

<font color="blue"><b>procedure</b></font> TForm1.FormCreate(Sender: TObject);
<font color="blue"><b>begin</b></font>
  PaxScripter1.RegisterInterfaceVar(<font color="Red">'hostobj'</font>, @ hostobj, ITest);
<font color="blue"><b>end</b></font>;

<font color="blue"><b>initialization</b></font>

RegisterRoutine(<font color="Red">'procedure GetIntf(out obj: ITest);'</font>, @GetIntf);

<font color="blue"><b>end</b></font>.
</pre>
</blockquote>




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Copyright &copy; 1999-2005
VIRT Laboratory. All rights reserved.
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