/components/codetools/examples/addeventmethod.lpr

 1{
 2 ***************************************************************************
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19 ***************************************************************************
20
21  Author: Mattias Gaertner
22
23  Abstract:
24    Demonstrating how to add a method to a class and extending the uses section.
25}
26program AddEventMethod;
27
28{$mode objfpc}{$H+}
29
30uses
31  Classes, SysUtils, CodeCache, CodeToolManager;
32  
33const
34  ConfigFilename = 'codetools.config';
35var
36  Filename: string;
37  Code: TCodeBuffer;
38begin
39  CodeToolBoss.SimpleInit(ConfigFilename);
40
41  // load the file
42  Filename:=ExpandFileName('scanexamples/addeventexample.pas');
43  Code:=CodeToolBoss.LoadFile(Filename,false,false);
44  if Code=nil then
45    raise Exception.Create('loading failed '+Filename);
46
47  // Example 1: add a method compatible to TNotifyEvent
48  if CodeToolBoss.CreatePublishedMethod(Code,'TForm1','NewMethod',
49    typeinfo(TNotifyEvent),false,'Classes') then
50  begin
51    writeln('Method added: ');
52    writeln(Code.Source);
53  end else begin
54    raise Exception.Create('Adding method failed');
55  end;
56end.
57