CodeGuru content and product recommendations are editorially independent. We may make money when you click on links to our partners. Learn More.
The following code is used to display an Animated Banner
using the the CmdiMainClient class. You will need to get
a set of sequenced bitmaps to show the animation. In my
example you can Right-Click to Start/Stop the animation
and Left-Click to display a child window, keeping the
background animation alive.
For your convenience, the code can be copied and pasted from
your browser or
downloaded (.zip format).
#include “stdafx.h”
#include “banner.h”
#include “mainfrm.h”#include “resource.h”
#ifdef _DEBUG
#undef THIS_FILE
static char BASED_CODE THIS_FILE[] = __FILE__;
#endif/////////////////////////////////////////////////////////////////////////////
// CMdiMainClientCMdiMainClient::CMdiMainClient()
: m_sizeClient(0, 0)
{
VERIFY (m_bmpBackGround.LoadBitmap(IDB_BCKGRD));
ASSERT (m_bmpBackGround.GetSafeHandle());VERIFY (m_bmpBackGround2.LoadBitmap(IDB_BITMAP0));
ASSERT (m_bmpBackGround2.GetSafeHandle());BmpLoaded = 1;
StopRotation = FALSE;
}CMdiMainClient::~CMdiMainClient()
{
if(m_bmpBackGround.GetSafeHandle())
m_bmpBackGround.DeleteObject();if(m_bmpBackGround2.GetSafeHandle())
m_bmpBackGround2.DeleteObject();
}BEGIN_MESSAGE_MAP(CMdiMainClient, CWnd)
//{{AFX_MSG_MAP(CMdiMainClient)
// NOTE – the ClassWizard will add and remove mapping macros here.
ON_WM_TIMER()
ON_WM_ERASEBKGND()
ON_WM_RBUTTONDOWN()
ON_WM_LBUTTONDOWN()
ON_WM_SIZE()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()/////////////////////////////////////////////////////////////////////////////
// CMdiMainClient message handlers
BOOL CMdiMainClient::OnEraseBkgnd(CDC* pDC)
{
// Erase only the area needed
CRect rect;
GetClientRect(&rect) ;SetTimer(0,300,NULL);
// Place the bitmap
BITMAP bm ;
CDC dcMem ;BITMAP bm2 ;
CDC dcMem2;VERIFY(m_bmpBackGround.GetObject(sizeof(bm), (LPVOID)&bm));
dcMem.CreateCompatibleDC(NULL);
CBitmap* pbmpOld = (CBitmap*)dcMem.SelectObject(&m_bmpBackGround);
ASSERT(pbmpOld) ;
// Display red background
pDC->StretchBlt(0, 0, rect.right, rect.bottom, &dcMem, 0,
0, bm.bmWidth, bm.bmHeight,SRCCOPY);VERIFY(m_bmpBackGround2.GetObject(sizeof(bm2), (LPVOID)&bm2));
dcMem2.CreateCompatibleDC(NULL);
dcMem2.SelectObject(&m_bmpBackGround2);
// Display picture background
pDC->StretchBlt(200,100,400, 200, &dcMem2, 0,0, bm2.bmWidth, bm2.bmHeight,
SRCCOPY);// Display Instructions
pDC->SetBkColor(RGB(255,0,0));
pDC->SetTextColor(RGB(192,192,192));
pDC->TextOut(480, 500, “Mouse Right Click to Stop/Start Special Effects”);
pDC->TextOut(480, 515, “Mouse Left-Click to Show Child Window”);// CleanUp
dcMem.SelectObject(pbmpOld) ;return TRUE;
}////////////////////////////////////////////////////////////////////
//
void CMdiMainClient::OnSize(UINT nType, int cx, int cy)
{
Default() ;
// if the app is just starting up, save the window
// dimensions and get outif ((m_sizeClient.cx == 0) && (m_sizeClient.cy==0))
{
m_sizeClient.cx = cx;
m_sizeClient.cy = cy;return ;
}// if the size hasn’t changed, break and pass to default
if ((m_sizeClient.cx == cx) && ( m_sizeClient.cy == cy))
{
return ;
}// window size has changed so save new dimensions and force
// entire background to redraw, including icon backgroundsm_sizeClient.cx = cx;
m_sizeClient.cy = cy;RedrawWindow(NULL, NULL,
RDW_INVALIDATE|RDW_ERASE|RDW_ERASENOW|RDW_ALLCHILDREN);return ;
}void CMdiMainClient::OnTimer(UINT nIDEvent)
{
DisplayNextLogoFrame();
CWnd::OnTimer(nIDEvent);
}void CMdiMainClient::DisplayNextLogoFrame()
{
CRect rect;
GetClientRect(&rect) ;BITMAP bm2 ;
CDC dcMem2;CDC *pDC = GetDC();
if (!StopRotation)
{
// Select next logo frame to be displayed
switch (BmpLoaded)
{
case 1: if(m_bmpBackGround2.GetSafeHandle())
m_bmpBackGround2.DeleteObject();
VERIFY (m_bmpBackGround2.LoadBitmap(IDB_BITMAP1));
ASSERT (m_bmpBackGround2.GetSafeHandle());
break;
case 2: if(m_bmpBackGround2.GetSafeHandle())
m_bmpBackGround2.DeleteObject();
VERIFY (m_bmpBackGround2.LoadBitmap(IDB_BITMAP2));
ASSERT (m_bmpBackGround2.GetSafeHandle());
break;
case 3: if(m_bmpBackGround2.GetSafeHandle())
m_bmpBackGround2.DeleteObject();
VERIFY (m_bmpBackGround2.LoadBitmap(IDB_BITMAP3));
ASSERT (m_bmpBackGround2.GetSafeHandle());
break;
case 4: if(m_bmpBackGround2.GetSafeHandle())
m_bmpBackGround2.DeleteObject();
VERIFY (m_bmpBackGround2.LoadBitmap(IDB_BITMAP4));
ASSERT (m_bmpBackGround2.GetSafeHandle());
break;
case 5: if(m_bmpBackGround2.GetSafeHandle())
m_bmpBackGround2.DeleteObject();
VERIFY (m_bmpBackGround2.LoadBitmap(IDB_BITMAP5));
ASSERT (m_bmpBackGround2.GetSafeHandle());
break;
case 6: if(m_bmpBackGround2.GetSafeHandle())
m_bmpBackGround2.DeleteObject();
VERIFY (m_bmpBackGround2.LoadBitmap(IDB_BITMAP6));
ASSERT (m_bmpBackGround2.GetSafeHandle());
break;
case 7: if(m_bmpBackGround2.GetSafeHandle())
m_bmpBackGround2.DeleteObject();
VERIFY (m_bmpBackGround2.LoadBitmap(IDB_BITMAP7));
ASSERT (m_bmpBackGround2.GetSafeHandle());
break;
case 8: if(m_bmpBackGround2.GetSafeHandle())
m_bmpBackGround2.DeleteObject();
VERIFY (m_bmpBackGround2.LoadBitmap(IDB_BITMAP8));
ASSERT (m_bmpBackGround2.GetSafeHandle());
break;
case 9: if(m_bmpBackGround2.GetSafeHandle())
m_bmpBackGround2.DeleteObject();
VERIFY (m_bmpBackGround2.LoadBitmap(IDB_BITMAP9));
ASSERT (m_bmpBackGround2.GetSafeHandle());
break;
}
// Change Bitmap index
if (BmpLoaded == 9)
BmpLoaded = 0;
else
BmpLoaded++;
}VERIFY(m_bmpBackGround2.GetObject(sizeof(bm2), (LPVOID)&bm2));
dcMem2.CreateCompatibleDC(NULL);
dcMem2.SelectObject(&m_bmpBackGround2);
pDC->StretchBlt(200,100,400, 200, &dcMem2, 0,0, bm2.bmWidth, bm2.bmHeight,
SRCCOPY);ReleaseDC(pDC);
}void CMdiMainClient::OnRButtonDown(UINT nFlags, CPoint point)
{
if (StopRotation)
StopRotation = FALSE;
else
StopRotation = TRUE;CWnd::OnRButtonDown(nFlags, point);
}void CMdiMainClient::OnLButtonDown(UINT nFlags, CPoint point)
{
m_Hide_Logo = TRUE;
KillTimer(0);// Display Application
((CBannerApp*)AfxGetApp())->pDocTemplate->OpenDocumentFile(NULL);CWnd::OnLButtonDown(nFlags, point);
}// MdiMainClient.h : header file
///////////////////////////////////////////////////////////////////////////////
// CMdiMainClient windowextern BOOL m_Hide_Logo;
class CMdiMainClient : public CWnd
{
// Construction
public:
CMdiMainClient();// Attributes
protected:
CBitmap m_bmpBackGround2;
CBitmap m_bmpBackGround;int BmpLoaded;
public:
BOOL StopRotation;
CSize m_sizeClient;// Overrides
// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CMdiMainClient)
//}}AFX_VIRTUAL// Implementation
public:
void Display_Blank_Bitmap();
void DisplayNextLogoFrame();
virtual ~CMdiMainClient();
// Generated message map functions
protected:
//{{AFX_MSG(CMdiMainClient)
// NOTE – the ClassWizard will add and remove member functions here.
afx_msg BOOL OnEraseBkgnd(CDC* pDC);
afx_msg void OnSize(UINT nType, int cx, int cy);
afx_msg void OnTimer(UINT nIDEvent);
afx_msg void OnRButtonDown(UINT nFlags, CPoint point);
afx_msg void OnLButtonDown(UINT nFlags, CPoint point);
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};
