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CppBuilderVclUnit1CPP

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(C++ Builder) Unit1.cpp (VCL)

Its default start-up code is:

//---------------------------------------------------------------------------
include <vcl.h>

pragma hdrstop


include "Unit1.h"

//---------------------------------------------------------------------------
pragma package(smart_init)

pragma resource "*.dfm"

TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
  : TForm(Owner)
{
}
//---------------------------------------------------------------------------

First, the VCL is #included, later its header file Unit1.h.

The line below defines the pointer called Form1, an instance of TForm1:

TForm1 *Form1;

The most difficult-looking line below, is the constructor of TForm1:

__fastcall TForm1::TForm1(TComponent* Owner)
  : TForm(Owner)
{
}

All VCL objects needs to be constructed with an Owner, so does TForm1. After the colon : it is initialized with its Owner.


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