Animation

You want to view a .AVI file in your window. Use the Animtion control.

+ Creating an Animation Control
The following function creates an animation control in a dialog box. The animation control is positioned below the specified control, and the dimensions of the animation control are based on the dimensions of a frame in the Audio-Video Interleaved (AVI) clip.

// CreateAnimationCtrl - creates an animation control, positions it 
//                       below the specified control in a dialog box, 
//                       and opens the AVI clip for the animation control. 
// Returns the handle to the animation control. 
// hwnd             - handle to the window. 
// hwndBtn              - handle of the control below which the animation control 
//                       is to be positioned. 
// 
// Constants 
//     IDC_ANIMATE - identifier of the animation control. 
//     CX_FRAME, CY_FRAME - width and height of the frames 
//     in the AVI clip. 
HWND CreateAnimationCtrl(HWND hwnd, int nIDCtl)
{
  HWND hwndAnim = NULL;
  RECT rc;
  POINT pt;

  // Create the animation control. 
  hwndAnim = Animate_Create(hwnd, IDC_ANIMATE, WS_BORDER | WS_CHILD, g_hinst);

  // Get the screen coordinates of the specified control button. 
  GetWindowRect(hwndBtn, &rc);

  // Convert the coordinates of the lower-left corner to 
  // client coordinates. 
  pt.x = rc.left;
  pt.y = rc.bottom;
  ScreenToClient(hwnd, &pt);

  // Position the animation control below the Stop button. 
  SetWindowPos(hwndAnim, 0, pt.x, pt.y + 20, CX_FRAME, CY_FRAME, SWP_NOZORDER |
    SWP_DRAWFRAME);

  // Open the AVI clip, and show the animation control. 
  Animate_Open(hwndAnim, "video.AVI");
  ShowWindow(hwndAnim, SW_SHOW);

  return hwndAnim;
}

+ Controlling the AVI Clip
The following function uses the animation control macros to control the display of the AVI clip in an animation control. Use it inside the window procedure.

// DoAnimation - plays, stops, or closes an animation control's 
//               AVI clip, depending on the value of an action flag. 
// hwndAnim    - handle to an animation control 
// nAction     - flag that determines whether to play, stop, or close 
//               the AVI clip. 

void DoAnimation(HWND hwndAnim, int nAction)
{
  switch (nAction)
  {
    case PLAYIT:
      // Play the clip continuously starting with the 
      // first frame. 
      Animate_Play(hwndAnim, 0,  - 1,  - 1);
      break;

    case STOPIT:
      Animate_Stop(hwndAnim);
      break;

    case CLOSEIT:
      Animate_Close(hwndAnim);
      break;

    default:
      break;
  }
  return ;
}