Re: i need Slideshow control

Here is another version. This version resizes the images to fit the static
control.
Place static control on your dialog box, give it an ID, attach a variable to
it, change the variable type from CStatic to CSlideShowCtrl

#pragma once

#include <atlimage.h>

// CSlideShowCtrl

class CSlideShowCtrl : public CStatic
{
   DECLARE_DYNAMIC(CSlideShowCtrl)

public:
   CSlideShowCtrl();
   virtual ~CSlideShowCtrl();

   void Start(CString Dir,UINT Interval);
   void Stop();
protected:
   afx_msg void OnTimer(UINT nIDEvent);
   DECLARE_MESSAGE_MAP()
private:
   CFileFind m_Finder;
   BOOL m_Ret;
   CString m_Dir;
   CImage m_CurImage;
   afx_msg void OnPaint();
   afx_msg BOOL OnEraseBkgnd(CDC* pDC);
};

// SlideShowCtrl.cpp : implementation file
//

#include "stdafx.h"
#include "SlideShowCtrl.h"

// CSlideShowCtrl

IMPLEMENT_DYNAMIC(CSlideShowCtrl, CStatic)
CSlideShowCtrl::CSlideShowCtrl()
{
}

CSlideShowCtrl::~CSlideShowCtrl()
{
}

BEGIN_MESSAGE_MAP(CSlideShowCtrl, CStatic)
   ON_WM_TIMER()
   ON_WM_PAINT()
   ON_WM_ERASEBKGND()
END_MESSAGE_MAP()

// CSlideShowCtrl message handlers
void CSlideShowCtrl::Start(CString Dir,UINT Interval)
{
   m_Dir = Dir;
   m_Ret = m_Finder.FindFile(Dir+"\\*.*");
   while (m_Ret)
   {
      m_Ret = m_Finder.FindNextFile();
      if (!m_Finder.IsDirectory())
      {
         CImage Image;
         if (Image.Load(m_Finder.GetFilePath()) == S_OK)
         {
            m_CurImage.Destroy();
            m_CurImage.Attach(Image.Detach());
            Invalidate();
            UpdateWindow();
            break;
         }
      }
   }
   SetTimer(100,Interval,NULL);
}

void CSlideShowCtrl::Stop()
{
   KillTimer(100);
}

void CSlideShowCtrl::OnTimer(UINT nIDEvent)
{
   if (nIDEvent == 100)
   {
      if (!m_Ret)
      {
         m_Ret = m_Finder.FindFile(m_Dir+"\\*.*");
      }

      while (m_Ret)
      {
         m_Ret = m_Finder.FindNextFile();
         if (!m_Finder.IsDirectory())
         {
            CImage Image;
            if (Image.Load(m_Finder.GetFilePath()) == S_OK)
            {
               m_CurImage.Destroy();
               m_CurImage.Attach(Image.Detach());
               Invalidate();
               UpdateWindow();
               break;
            }
         }
      }
   }

   CStatic::OnTimer(nIDEvent);
}

void CSlideShowCtrl::OnPaint()
{
   CPaintDC dc(this); // device context for painting

   CRect Rect;
   GetClientRect(&Rect);
   double Ratio = 1.0;
   if (m_CurImage.GetWidth() > Rect.Width())
   {
      Ratio = (double)Rect.Width() / (double)m_CurImage.GetWidth();
   }
   if (m_CurImage.GetHeight() > Rect.Height())
   {
      double Temp = Rect.Height() / (double)m_CurImage.GetHeight();
      if (Temp < Ratio)
      {
         Ratio = Temp;
      }
   }
   int X = (int)(Rect.Width() - (m_CurImage.GetWidth()*Ratio)) / 2;
   int Y = (int)(Rect.Height() - (m_CurImage.GetHeight()*Ratio)) / 2;
   m_CurImage.Draw(dc.GetSafeHdc(),X,Y,m_CurImage.GetWidth()*Ratio,m_CurImage.GetHeight()*Ratio);
}

BOOL CSlideShowCtrl::OnEraseBkgnd(CDC* pDC)
{
   CRect Rect;
   GetClientRect(&Rect);
   pDC->FillSolidRect(Rect,RGB(127,127,127));

   return TRUE;
}

AliR.

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