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   <TITLE>Dialog - CDialog using animated control</TITLE>
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<H3>
<FONT COLOR="#AOAO99">CDialog using animated control</FONT></H3></CENTER>

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<H3>

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<p>This article was contributed by <A HREF="mailto:almog@notes.iet.co.il">Ran Almog</A>

<P>CAnimateDlg (located in AnimateDlg.h/cpp) is a simple class derived from
CDialog in order to implement user designed animated control. The user of
the class has to call SetAnimationProperties() method and to pass to it the
ID of the static control that will use as an animation control, number of
frames in the "movie", array of bitmap IDs in the application resource and
the time-slice between frame (to set the animation speed).


<H4>Header File</H4>
<PRE><TT><FONT COLOR="#990000">
#if !defined(AFX_ANIMATEDLG_H__64C0DD41_7BA0_11D1_8DC6_0000E8125FE5__INCLUDED_)
#define AFX_ANIMATEDLG_H__64C0DD41_7BA0_11D1_8DC6_0000E8125FE5__INCLUDED_

#if _MSC_VER >= 1000
#pragma once
#endif // _MSC_VER >= 1000
// AnimateDlg.h : header file
//

/////////////////////////////////////////////////////////////////////////////
// CAnimateDlg dialog

class CAnimateDlg : public CDialog
{
// Construction
public:
	void StopAnimation();
	void StartAnimation();
	void SetAnimationProperties(UINT controlID,  BYTE nFrames, UINT *pImagesArray, UINT timeSliceBetweenFrames);
	CAnimateDlg();   // standard constructor
	~CAnimateDlg();

// Dialog Data
	//{{AFX_DATA(CAnimateDlg)
		// NOTE: the ClassWizard will add data members here
	//}}AFX_DATA


// Overrides
	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAnimateDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:

	// Generated message map functions
	//{{AFX_MSG(CAnimateDlg)
	afx_msg void OnTimer(UINT nIDEvent);
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
private:
	CBitmap m_CurrentBmp;
	BYTE m_CurrentFrame;
	UINT m_TimeInterval;
	UINT* m_pFramesArray;
	BYTE m_nFrames;
	UINT m_TargetCtrl;
	BOOL m_bPlayingNow;
};

//{{AFX_INSERT_LOCATION}}
// Microsoft Developer Studio will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_ANIMATEDLG_H__64C0DD41_7BA0_11D1_8DC6_0000E8125FE5__INCLUDED_)
</FONT></TT></PRE>


<H4>CPP File</H4>
<PRE><TT><FONT COLOR="#990000">
// AnimateDlg.cpp : implementation file
//

#include <afxwin.h>
#include "AnimateDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CAnimateDlg dialog


CAnimateDlg::CAnimateDlg()
{
	//{{AFX_DATA_INIT(CAnimateDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	m_TimeInterval = 0;
	m_pFramesArray = NULL;
	m_nFrames = 0;
	m_TargetCtrl = 0;
	m_CurrentFrame = 1;
}

CAnimateDlg::~CAnimateDlg()
{
	if (m_bPlayingNow)
		StopAnimation();
}


void CAnimateDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAnimateDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CAnimateDlg, CDialog)
	//{{AFX_MSG_MAP(CAnimateDlg)
	ON_WM_TIMER()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CAnimateDlg message handlers

void CAnimateDlg::SetAnimationProperties(UINT controlID, BYTE nFrames, UINT * pImagesArray, UINT timeSliceBetweenFrames)
{
	m_TimeInterval = timeSliceBetweenFrames;
	m_pFramesArray = pImagesArray;
	m_nFrames = nFrames;
	m_TargetCtrl = controlID;	
	m_bPlayingNow = FALSE;
}

void CAnimateDlg::StartAnimation()
{
	if (!m_bPlayingNow)
		SetTimer(0, m_TimeInterval, NULL);
}

void CAnimateDlg::StopAnimation()
{
	if (m_bPlayingNow)
		KillTimer(0);
}

void CAnimateDlg::OnTimer(UINT nIDEvent) 
{
	if (m_CurrentFrame > m_nFrames)
		m_CurrentFrame = 1;

	CStatic *pTargetCtrl = (CStatic *) GetDlgItem(m_TargetCtrl);
	ASSERT(pTargetCtrl != NULL);
	m_CurrentBmp.Detach();
	m_CurrentBmp.LoadBitmap(m_pFramesArray[m_CurrentFrame - 1]);
	pTargetCtrl->SetBitmap(m_CurrentBmp);
	m_CurrentFrame++;
	
	CDialog::OnTimer(nIDEvent);
}
</FONT></TT></PRE>

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