MFC - Animation Control


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An animation control is a window that displays an Audio clip in AVI format. An AVI clip is a series of bitmap frames, like a movie. Animation controls can only play simple AVI clips, and they do not support sound. It is represented by the CAnimateCtrl class.

Following is the list of methods in CAnimateCtrl class −

Sr.No. Methods & Description
1

Close

Closes the AVI clip.

2

Create

Creates an animation control and attaches it to a CAnimateCtrl object.

3

CreateEx

Creates an animation control with the specified Windows extended styles and attaches it to a CAnimateCtrl object.

4

IsPlaying

Indicates whether an Audio-Video Interleaved (AVI) clip is playing.

5

Open

Opens an AVI clip from a file or resource and displays the first frame.

6

Play

Plays the AVI clip without sound.

7

Seek

Displays a selected single frame of the AVI clip.

8

Stop

Stops playing the AVI clip.

Here is the list of messages mapping for animation control −

Message Map entry Description
ACN_START ON_ACN_START ( <id>, <memberFxn> ) The framework calls this member function when an animation is being started.
ACN_STOP ON_ACN_STOP ( <id>, <memberFxn> ) The framework calls this member function when an animation stop.

Let us look into a simple example of animation control.

Step 1 − Create a new MFC dialog based project.

MFC dialog Project

Step 2 − Once the project is created, remove the TODO line and click on Animation Control in Toolbox and draw a rectangle as shown in the following snapshot.

MFC Animation Control

Step 3 − To add a control variable for animation control, right-click and select Add Variable.

MFC Animation Demo

Step 4 − Enter the variable name and variable type, which is CAnimateCtrl for animation.

CAnimateCtrl Animation.

Step 5 − Using the Properties window, set the Border value to False, Set the Auto Play, the Center, and the transparent values to True.

Step 6 − Here we have *.avi file in res folder, which is the default folder for any resources used in the project.

Step 7 − To start the animation, we need to call the Open method CAnimateCtrl class. Add the following line of code in CMFCAnimationDemoDlg::OnInitDialog()

m_animationCtrl.Open(L"res\\copyfile.avi");

Step 8 − Here is the complete implementation of CMFCAnimationDemoDlg::OnInitDialog()

BOOL CMFCAnimationDemoDlg::OnInitDialog(){
   CDialogEx::OnInitDialog();
	
   // Add "About..." menu item to system menu.
	
   // IDM_ABOUTBOX must be in the system command range.
   ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
   ASSERT(IDM_ABOUTBOX < 0xF000);
	
   CMenu* pSysMenu = GetSystemMenu(FALSE);
   if (pSysMenu != NULL){
      BOOL bNameValid;
      CString strAboutMenu;
      bNameValid = strAboutMenu.LoadString(IDS_ABOUTBOX);
      ASSERT(bNameValid);
      if (!strAboutMenu.IsEmpty()){
         pSysMenu -> AppendMenu(MF_SEPARATOR);
         pSysMenu -> AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
      }
   }
	
   // Set the icon for this dialog. The framework does this automatically
   // when the application's main window is not a dialog
   SetIcon(m_hIcon, TRUE);        // Set big icon
   SetIcon(m_hIcon, FALSE);       // Set small icon
	
   // TODO: Add extra initialization here
   m_animationCtrl.Open(L"res\\copyfile.avi");
	
   return TRUE; // return TRUE unless you set the focus to a control
}

Step 9 − When the above code is compiled and executed, you will see the following output.

MFC CMFCAnimationDemo
mfc_windows_controls.htm
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