How to Play an .AVI Video File in Full Screen in Visual Basic

ID: Q142389

The information in this article applies to:
This article shows by example how to play an .AVI (video) file in full screen from Visual Basic for Windows. When you play an .AVI file using the full screen, the color palette focus is set to the .AVI file only. No dithering of colors occurs because there are no other windows in the background to capture the color palette.

MORE INFORMATION

The example uses the mciSendString application programming interface (API) from Microsoft Windows version 3.1 or Microsoft Windows version 3.0 with Multimedia Extensions.

For the example to work, your computer must be able to play .AVI files and you need either Microsoft Windows version 3.1 or Microsoft Windows version 3.0 with Multimedia Extensions.

The .AVI file included in the example (WNDSURF1.AVI) is the one from Microsoft Video for Windows.

Information in the Visual Basic 4.0 section applies only to Visual Basic 4.0, and information in the Visual Basic 3.0 section applies only to Visual Basic 3.0.

VB 4.0 SECTION

Step-by-Step Example

  1. Start Visual Basic or from the File menu, choose New Project (ALT, F, N) if Visual Basic is already running. Form1 is created by default.


  2. Add a command button (Command1) to Form1, and set its caption property to: Play Video.


  3. Add the following line of code to the (general) (declarations) section of Form1: 
    
   #If Win32 Then

   Private Declare Function mciSendString Lib "winmm.dll" Alias _
   "mciSendStringA" (ByVal lpstrCommand As String, ByVal _
   lpstrReturnString As Any, ByVal uReturnLength As Long, ByVal _
   hwndCallback As Long) As Long
   #Else
   Private Declare Function mciSendString Lib "mmsystem" (ByVal _
   lpstrCommand As String, ByVal lpstrReturnStr As Any, ByVal _
   wReturnLen As Integer, ByVal hCallBack As Integer) As Long
   #End If


  4. Add the following lines of code to the Command1 Click event procedure: 
    
   Sub Command1_Click ()
   CmdStr$ = "play c:\winvideo\wndsurf1.avi fullscreen "
   ReturnVal& = mciSendString(CmdStr$, 0&, 0, 0&)
   End Sub


  5. From the Run menu, choose Start (ALT, R, S) to run the program.


Click the Play Video button to watch the video full screen. The video will last for a few seconds and return back to the Visual Basic environment.

VB 3.0 SECTION

Step-by-Step Example

  1. Start Visual Basic or from the File menu, choose New Project (ALT, F, N) if Visual Basic is already running. Form1 is created by default.


  2. Add a command button (Command1) to Form1, and set its caption property to: Play Video.


  3. Add the following line of code to the (general) (declarations) section of Form1: 
    
   ' Enter the following Declare statement on one, single line:

   Declare Function mciSendString Lib "mmsystem" (ByVal lpstrCommand$,
   ByVal lpstrReturnStr As Any, ByVal wReturnLen%, ByVal hCallBack%) As
   Long


  4. Add the following lines of code to the Command1 Click event procedure: 
    
   Sub Command1_Click ()
   CmdStr$ = "play c:\winvideo\wndsurf1.avi fullscreen "
   ReturnVal& = mciSendString(CmdStr$, 0&, 0, 0&)
   End Sub


  5. From the Run menu, choose Start (ALT, R, S) to run the program.


Click the Play Video button to watch the video full screen. The video will last for a few seconds and return back to the Visual Basic environment.

Additional query words: 1.00 2.00 3.00 4.00 vb4win vb4all 


Keywords          : kbcode 
Version           : 1.0 2.0 3.0 4.00
Platform          : WINDOWS 
Issue type        :

Last Reviewed: June 23, 1999