tps_demo_records.htm

来自「Delphi脚本控件」· HTM 代码 · 共 109 行

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<html>
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<link rel=stylesheet type="text/css" href="styles.css">
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<h3>
TPaxScripter Demo. Importing record types.
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<blockquote>

<pre>
<font color="blue"><b>unit</b></font> TestRecords1;

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

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

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

  TMyPoint = <font color="blue"><b>record</b></font>
    X, Y: Integer;
  <font color="blue"><b>end</b></font>;

  TForm1 = <font color="blue"><b>class</b></font>(TForm)
    Button1: TButton;
    PaxScripter1: TPaxScripter;
    PaxPascal1: TPaxPascal;
    <font color="blue"><b>procedure</b></font> PaxScripter1AssignScript(Sender: TPaxScripter);
    <font color="blue"><b>procedure</b></font> FormCreate(Sender: TObject);
    <font color="blue"><b>procedure</b></font> Button1Click(Sender: TObject);
  <font color="blue"><b>private</b></font>
    { <font color="blue"><b>Private</b></font> declarations }
    R: TMyPoint;
  <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>function</b></font> TestRecord(P: TMyPoint): TMyPoint;
<font color="blue"><b>begin</b></font>
  Inc(P.X);
  Inc(P.Y);
  result := P;
<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>
  PaxScripter1.AddModule(<font color="Red">'1'</font>, <font color="Red">'paxPascal'</font>);
  PaxScripter1.AddCode(<font color="Red">'1'</font>, <font color="Red">'var P, Q: TMyPoint;'</font>);
  PaxScripter1.AddCode(<font color="Red">'1'</font>, <font color="Red">'print R.X;'</font>);
  PaxScripter1.AddCode(<font color="Red">'1'</font>, <font color="Red">'print R.Y;'</font>);
  PaxScripter1.AddCode(<font color="Red">'1'</font>, <font color="Red">'R.Y := 500;'</font>);
  PaxScripter1.AddCode(<font color="Red">'1'</font>, <font color="Red">'Q := R;'</font>);
  PaxScripter1.AddCode(<font color="Red">'1'</font>, <font color="Red">'print Q.Y;'</font>);
  PaxScripter1.AddCode(<font color="Red">'1'</font>, <font color="Red">'Q.Y := 400;'</font>);
  PaxScripter1.AddCode(<font color="Red">'1'</font>, <font color="Red">'Q := TestRecord(R);'</font>);
  PaxScripter1.AddCode(<font color="Red">'1'</font>, <font color="Red">'print Q.X;'</font>);
  PaxScripter1.AddCode(<font color="Red">'1'</font>, <font color="Red">'print Q.Y;'</font>);
  PaxScripter1.AddCode(<font color="Red">'1'</font>, <font color="Red">'P := TestRecord(Q);'</font>);
  PaxScripter1.AddCode(<font color="Red">'1'</font>, <font color="Red">'print P.X;'</font>);
  PaxScripter1.AddCode(<font color="Red">'1'</font>, <font color="Red">'print P.Y;'</font>);
<font color="blue"><b>end</b></font>;

<font color="blue"><b>procedure</b></font> TForm1.FormCreate(Sender: TObject);
<font color="blue"><b>var</b></font>
  H: Integer;
<font color="blue"><b>begin</b></font>
  R.X := 10;
  R.Y := 20;
  H := RegisterRecordType(<font color="Red">'TMyPoint'</font>, SizeOf(TMyPoint));
  RegisterRecordField(H, <font color="Red">'X'</font>, <font color="Red">'Integer'</font>, 0);
  RegisterRecordField(H, <font color="Red">'Y'</font>, <font color="Red">'Integer'</font>, 4);
  RegisterRoutine(<font color="Red">'function TestRecord(P: TMyPoint): TMyPoint;'</font>, @TestRecord);
  RegisterVariable(<font color="Red">'R'</font>, <font color="Red">'TMyPoint'</font>, @R);
<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>
  PaxScripter1.Run;
  ShowMessage(<font color="Red">'R.Y='</font> + IntToStr(R.Y));
<font color="blue"><b>end</b></font>;

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

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