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Debugging techniques in Delphi

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Debugging techniques in Delphi 1 Programming with Delphi Debugging Debugging techniques in Delphi ... save a lot of time finding the exact reason of the problem. In this small tutorial ...

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Debugging techniques in Delphi 1 Programming with Delphi Debugging Debugging techniques in Delphi & bug prevention Stefan Cruysberghs www.scip.be June 2003 Debugging techniques in Delphi 2 Contents Contents. 2 Debugging. 3 Try it with an example. 3 Options. 5 Project options. 5 Debugger options. 7 Breakpoints. 7 Call stack. 8 Local variables. 9 Watches. 10 Options. 10 Breakpoints. 11 Source breakpoints. 11 Conditions, Pass count, Log message. 11 Data breakpoints. 12 Debug inspector. 12 Event log (OutputDebugString) . 13 Ideas for creating your own debug features. 14 Bug prevention. 15 Solve warnings and hints. 15 Items of lists. 15 Pointers to objects. 15 Try-Finally. 16 Try-Except. 17 Debugging techniques in Delphi 3 Debugging Even if you did write a program in disciplined, well-structured, careful manner, you probably still need to debug it to find some bugs. Delphi offers great debugging tools and when you know how to use them, you will surely save a lot of time finding the exact reason of the problem. In this small tutorial I will explain some nice features in Delphi which will help you to debug your programs. Because it is better to avoid bugs, I will also give some tips for making better programs. Try it with an example unit DebugTechn ; interface uses  Windows , Messages , SysUtils , Classes , Graphics , Controls , Forms , Dialogs ,  Menus , StdCtrls ; type  TForm1 = class ( TForm )    Button1 : TButton ;    Edit1 : TEdit ;    MainMenu1 : TMainMenu ;    Edit2 : TMenuItem ;    MenuCalculate1 : TMenuItem ;    Button2 : TButton ; Button ; Button3 : T    procedure Button1Click ( Sender : TObject );    procedure MenuCalculate1Cl ick ( Sender : TObject );    procedure Button2Click ( Sender : TObject ) ...

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