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)
{
  int ww,ww1,ii;
  ww=0;
  ListBox1->Canvas->Font->Size=ListBox1->Font->Size;
  for(ii=0;ii<ListBox1->Items->Count;ii++)
  {
    ww1=ListBox1->Canvas->TextWidth(ListBox1->Items->Strings[ii]);
    if(ww1>ww)ww=ww1;
  }
  SendMessage(ListBox1->Handle,LB_SETHORIZONTALEXTENT,ww,0);//向下滚动
}
//---------------------------------------------------------------------------