unit1.cpp

<<C++Builder 6实用编程100例>>随书光盘

//---------------------------------------------------------------------------

#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::FileListBox1Click(TObject *Sender)
{
        Image1->Picture->LoadFromFile(FileListBox1->FileName);
}
//---------------------------------------------------------------------------

void __fastcall TForm1::IMage1MouseDown(TObject *Sender, TMouseButton Button,
      TShiftState Shift, int X, int Y)
{
        iX=X;
        iY=Y;
}
//---------------------------------------------------------------------------

void __fastcall TForm1::IMage1MouseMove(TObject *Sender, TShiftState Shift, int X,
      int Y)
{
        int dX,dY;
        if(Shift.Contains(ssLeft))
        {
                dX=X-iX;
                dY=Y-iY;
                if(dX)
                        Image1->Left+=dX;
                if(dY)
                        Image1->Top+=dY;
        }
}
//---------------------------------------------------------------------------