Делаем простую программу, для просмотра картинок из интернета на С++.

Unit1.cpp

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

#include <vcl.h>
#pragma hdrstop

#include "Unit1.h"
#include <jpeg.hpp> //хедер для картинок
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
	: TForm(Owner)
{
TFileStream* sf = new TFileStream ("temp.jpg", fmCreate);
IdHTTP1->Get("http://screensaver-clock.ru/images/screensaver_b2scr.jpg",sf);
delete sf;
Image1->Picture->LoadFromFile("temp.jpg");
DeleteFile ("temp.jpg");

}
//---------------------------------------------------------------------------

Unit1.h

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

#ifndef Unit1H
#define Unit1H
//---------------------------------------------------------------------------
#include <System.Classes.hpp>
#include <Vcl.Controls.hpp>
#include <Vcl.StdCtrls.hpp>
#include <Vcl.Forms.hpp>
#include <Vcl.ExtCtrls.hpp>
#include <IdBaseComponent.hpp>
#include <IdComponent.hpp>
#include <IdHTTP.hpp>
#include <IdTCPClient.hpp>
#include <IdTCPConnection.hpp>
//---------------------------------------------------------------------------
class TForm1 : public TForm
{
__published:	// IDE-managed Components
	TImage *Image1;
	TIdHTTP *IdHTTP1;
private:	// User declarations
public:		// User declarations
	__fastcall TForm1(TComponent* Owner);
};
//---------------------------------------------------------------------------
extern PACKAGE TForm1 *Form1;
//---------------------------------------------------------------------------
#endif