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How to Control the AVI Clip

  • Article

This topic demonstrates how to use the animation control macros to play, stop, and close an associated Audio-Video Interleaved (AVI) clip.

What you need to know

Technologies

Prerequisites

  • C/C++
  • Windows User Interface Programming
  • AVI files

Instructions

Create a function that takes as parameters a handle to the animation control and a flag that indicates the action to be performed on the associated AVI clip.

The function in the following C++ example calls one of three animation control macros (Animate_Play, Animate_Stop, Animate_Close) based on the value of the nAction parameter. The handle to the animation control that is associated with the AVI clip is passed via the hwndAnim parameter.

// 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) 
{ 
    int const PLAYIT = 1, STOPIT = 2, CLOSEIT = 3; 
    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;

About Animation Controls

Animation Control Reference

Using Animation Controls

Animation Control