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::Button1Click(TObject *Sender)
{
        OpenPictureDialog1->DefaultExt=GraphicExtension(__classid(TIcon));
        OpenPictureDialog1->FileName=GraphicFileMask(__classid(TIcon));
        OpenPictureDialog1->Filter=GraphicFilter(__classid(TIcon));
        OpenPictureDialog1->Options.Clear();
        OpenPictureDialog1->Options<<ofFileMustExist<<ofHideReadOnly<<ofNoChangeDir;
        if (OpenPictureDialog1->Execute())
        {
                if (!OpenPictureDialog1->Options.Contains(ofExtensionDifferent))
                {
                        Application->Icon->LoadFromFile(OpenPictureDialog1->FileName);
                        Image1->Picture->LoadFromFile(OpenPictureDialog1->FileName);
                }
                else
                {
                        OpenPictureDialog1->Options.Clear();
                        OpenPictureDialog1->Options<<ofFileMustExist<<ofHideReadOnly
                                        <<ofNoChangeDir;
                }
        }
}
//---------------------------------------------------------------------------

void __fastcall TForm1::Button2Click(TObject *Sender)
{
        Form1->Close();
}
//---------------------------------------------------------------------------