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Unit1.cpp：源码内容

							//---------------------------------------------------------------------------
#include <vcl.h>
#pragma hdrstop
#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Panel1Resize(TObject *Sender)
{
  ScrollBox1->HorzScrollBar->Position=0;
  ScrollBox1->VertScrollBar->Position=0;
  ScrollBox1->HorzScrollBar->Range=Panel1->Width+Panel1->Left+16;
  ScrollBox1->VertScrollBar->Range=Panel1->Height+Panel1->Top+16;
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button1Click(TObject *Sender)
{
  Panel1->Width=800;
  Panel1->Height=800;
}
//---------------------------------------------------------------------------

						