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Control of the Media Stream
An application that has just obtained a call may not immediately receive
control of the media stream, and may need to wait until the previous owner
application relinquishes it. Though this may take time, any application with control of
the media stream should transfer control when it sees that a new owner has come
on line (the number of owners has increased).
The procedures for transferring control of an active media stream differ for
every media-control API. The API may allow only one application to have a
media-stream device (such as a COM port used for data transfer) open. In this case,
it is important that the current owner relinquish control of a media stream
device before handing off the call. But with some other types of media such as WAV audio,
several applications (and several devices) can have the media stream open at the
same time. This makes it unnecessary to close the media stream before the
handoff, and perhaps not at all.
Related Links
Software for Delphi and C++ Builder developers
Software for Visual Studio .NET developers
Software for Visual Basic 6 developers
Delphi Tips&Tricks
MegaDetailed.NET
More Online Helps
Win32 Programmer's Reference (win32.hlp)
Win32 Multimedia Programmer's Reference (mmedia.hlp)
OLE Programmer's Reference (ole.hlp)
Microsoft Windows Pen API Programmer's Reference (penapi.hlp)
Microsoft Windows Sockets 2 Reference (sock2.hlp)
Unix Manual Pages
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