unit1.cpp

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//---------------------------------------------------------------------------
#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::Button1Click(TObject *Sender)
{
  switch(RadioGroup1->ItemIndex)
  {
    case 1:
      Canvas->Font->PixelsPerInch=96;
      break;
    case 2:
      Canvas->Font->PixelsPerInch=180;
      break;
    case 3:
      Canvas->Font->PixelsPerInch=360;
      break;
    case 4:
      Canvas->Font->PixelsPerInch=720;
      break;
    case 5:
      Canvas->Font->PixelsPerInch=1440;
      break;
    default:
      Canvas->Font->PixelsPerInch=48;
      break;
  }
  Canvas->Font->Size=12;
  Canvas->TextOut(220,20,"中华人民共和国");
}
//---------------------------------------------------------------------------