用VC制作播放AVI视频流的动画按钮3节能

三、实现代码

/////////////////////////////// AviButton.h : header file

#if !defined(AFX_AVIBUTTON_H__5E20D4EF_864E_11D7_886E_F16C81CD642B__INCLUDED_)

#define AFX_AVIBUTTON_H__5E20D4EF_864E_11D7_886E_F16C81CD642B__INCLUDED_

#if _MSC_VER 1000

#pragma once

#endif // _MSC_VER 1000

class CAviButton : public CButton

{

// Construction

public:

CAviButton();

public:

UINT m_nAviID;

CAnimateCtrl AnimateCtrl;

BOOL bPlaying;

void LoadAvi(UINT nAviID);

void DrawButton(CDC* pDC, UINT nState, CRect rect);

// Overrides

// ClassWizard generated virtual function overrides

//{{AFX_VIRTUAL(CAviButton)

public:

virtual void DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct);

virtual BOOL Create(LPCTSTR lpszClassName, LPCTSTR lpszWindowName, DWORD

dwStyle, const RECT rect, CWnd* pParentWnd, UINT nID,

CCreateContext* pContext = NULL);

//}}AFX_VIRTUAL

// Implementation

public:

virtual ~CAviButton();

// Generated message map functions

protected:

//{{AFX_MSG(CAviButton)

afx_msg void OnMouseMove(UINT nFlags, CPoint point);

//}}AFX_MSG

DECLARE_MESSAGE_MAP()

};

#endif

////////////////////////////P文件；

#include "stdafx.h"

#include "TestAviButton.h"

#include "AviButton.h"

#ifdef _DEBUG

#define new DEBUG_NEW

#undef THIS_FILE

static char THIS_FILE[] = __FILE__;

#endif

CAviButton::CAviButton(2008年)

{

m_nAviID = 0;

bPlaying = FALSE;

}

CAviButton::~CAviButton()

{}

void CAviButton::LoadAvi(UINT nAviID)

{

m_nAviID =nAviID;

}

BEGIN_MESSAGE_MAP(CAviButton, CButton)

//{{AFX_MSG_MAP(CAviButton)

ON_WM_MOUSEMOVE()

//}}AFX_MSG_MAP

END_MESSAGE_MAP()

///////////////////// CAviButton message handlers

void CAviButton::DrawButton(CDC *pDC, UINT nState, CRect rect)

{

COLORREF upCol,downCol,edgeCol;

edgeCol=RGB(0,0,0); //设置按钮边缘的初始化颜色；

if ((nState ODS_SELECTED) == ODS_SELECTED)

{

//设置按钮被按下时按钮的颜色

upCol=RGB(0,0,0);

edgeCol=RGB(128,128,128);

downCol=RGB(0,0,0);

}

else

{

//设置按钮正常时按钮的颜色

upCol=RGB(255,255,255);

downCol=RGB(128,128,128);

}

CPen* pOldPen = NULL;

BOOL pen1Created;

CPen pen1;

BOOL pen2Created;

CPen pen2;

if (pen1Created = eatePen(PS_SOLID, 1, upCol))

pOldPen = pDC-SelectObject( pen1 );

//画左上边缘

pDC-MoveTo(1,ight()-1);

pDC-LineTo(1,1);

pDC-LineTo(dth()-1,1);

pDC-MoveTo(0,ight()-1);

pDC-LineTo(0,0);

pDC-LineTo(dt这当然与房产和汽车线下端过重有关h()-1,0);

if (pen2Created = eatePen(PS_SOLID, 1, downCol))

pDC-SelectObject( pen2 );

if (pen1Created)

{

leteObject();

pen1Created = FALSE;

}

//画右下边缘

pDC-MoveTo(dth()-1,0);

pDC-LineTo(dth()-1,ight()-1);

pDC-LineTo(0,ight()-1);

pDC-MoveTo(dth()-2,1);

pDC-LineTo(dth()-2,ight()-2);

pDC-LineTo(0,ight()-2);

if (pen2Created)//删除"pen2"画笔对象

{

leteObject();

pen2Created = FALSE;

}

if (pen1Created = eatePen(PS_SOLID, 1, edgeCol))

pOldPen = pDC-SelectObject( pen1 );

if (pen1Created)

{

leteObject();

pen1Created = FALSE;

}

if (pOldPen != NULL)

pDC-SelectObject( pOldPen );

}

void CAviButton::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct)

{

// TODO: Add your code to draw the specified item

CRect rect;

GetClientRect(rect);

if (!::IsWindow(AnimateCtrl))

{

//在按钮上生成一个动画控件

eate(WS_CHILD |WS_VISIBLE,rect,this,0);

//打开avi文件并显示第一帧

en(m_nAviID);

tClientRect(rect);

}

CDC* pDC = CDC::FromHandle(lpDrawItemStruct-hDC);

UINT nState = lpDrawItemStruct-itemState;

CRect buttonRect;

GetClientRect(buttonRect);

//绘制按钮

DrawButton(pDC, nState, buttonRect);

}

BOOL CAviButton::Create(LPCTSTR lpszClassName, LPCTSTR lpszWindowName, DWORD

dwStyle, const RECT rect, CWnd* pParentWnd, UINT nID, CCreateContext* pContext)

{

// TODO: Add your specialized code here and/or call the base class

return CWnd::Create(lpszClassName, lpszWindowName, dwStyle,

rect, pParentWnd, nID, pContext);

}

void CAviButton::OnMouseMove(UINT nFlags, CPoint point)

{

// TODO: Add your message handler code here and/or call default

ClientToScreen(point);

CRect rcWindow;

GetWindowRect(rcWindow);

//判断鼠标是否经过按钮

BOOL bNewMouseOverButton = InRect(point);

if (bNewMouseOverButton IsWindowEnabled() )

{

if (::IsWindow(AnimateCtrl) !bPlaying)

{

ay(0,-1,1);

bPlaying = TRUE;

SetCapture();

}

}

else

{

bPlaying = FALSE;

ReleaseCapture();

}

CButton::OnMouseMove(nFlags, point);

}

/////////////////////////////////

BOOL CTestAviButtonDlg::OnInitDialog()

{

CDialog::OnInitDialog();

…………………//此处代码省略；

m_adAvi(IDR_AVI);

return TRUE; // return TRUE unless you set the focus to a control

}

四、小结

通过CAnimateCtrl类和按钮控件的自画功能的结合，本实例实现了动画按钮，如果该类和工具条、状态条等控件结合，还可以实现在上述控件上播放动画视频流的效果。查看本文来源

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