Home   Index   About
Ultimate Pack


Custom Search
Audio Buffers

You can control the audio portion of a capture operation in three ways:

  • Include or exclude audio from the capture operation.

  • Request a specific number of audio buffers.

  • Request that audio buffers be a specific size.

You can retrieve the settings for audio buffers by using the WM_CAP_GET_SEQUENCE_SETUP message (or the capCaptureGetSetup macro). The fCaptureAudio member of the CAPTUREPARMS structure specifies whether audio is included or excluded from the capture operation. The current requested number of audio buffers is stored in the wNumAudioRequested member, and the current audio buffer size is stored in the dwAudioBufferSize member. You can specify whether to include audio capture, specify the size and number of audio buffers by updating these members, and send the updated CAPTUREPARMS structure to the capture window by using the WM_CAP_SET_SEQUENCE_SETUP message (or the capCaptureSetSetup macro).

By default, audio is included in the capture operation, and four audio buffers are allocated. The default value of fCaptureAudio is TRUE. The default buffer size (the value of dwAudioBufferSize) can contain 0.5 seconds of audio data or 10K, whichever is greater.


Last news from Greatis Software

Nostalgia .Net     Nostalgia .Net     .Net is powerful, but not all-powerful, so sometimes we need to use Win32 API for our .Net applications. It's simple enough with Platform Invoke if you have Win32 skill, but we do not always have time to dig the ancient documentation, declare the special types that are compatible with Win32, find the values of the Win32's constants and so on. Nostalgia .Net offers several simple-to-use classes, and components that will allow you to forget about the headache of Win32 and just use the power of Win32 in your application the same way as you use the native. Net classes.  More »

Recommended software for developers

Ultimate Pack for Delphi and C++ Builder     Ultimate Pack     Component pack for Delphi and C++ Builder that contains runtime form designer, runtime object inspector, print suite and much more for the very special price.  More »

Form Designer .Net     Form Designer .Net     Unique runtime form design solution that allows to edit any form in .Net WinForms application at runtime with full source codes for only 300 euro!  More »

Print Suite .Net     Print Suite .Net     Print Suite .Net is a set of components for easy printing texts, images and grids from your WinForms applications. Full C# source codes are available  More »

Gradient Controls .Net     Gradient Controls .Net     Gradient Controls .Net offers controls with gradient background feature. Labels, panels and so on... Full C# source codes are available  More »

iGrid     Greatis iGrid     iGrid plots drawing grid right over your desktop, so you can use it everywhere, with any drawing application without any special plugins for different graphic editors.  More »


All the contacts and projects

Dmitry Vasiliev (just.dmitry)

Related Links

Software for Visual Studio .NET developers
Software for Delphi and C++ Builder developers
Software for Visual Basic 6 developers
Delphi Tips&Tricks
MegaDetailed.NET

More Online Helps

Win32 Programmer's Reference
Win32 Multimedia Programmer's Reference
OLE Programmer's Reference
Microsoft Windows Pen API Programmer's Reference
Microsoft Windows Sockets 2 Reference
Microsoft Windows Telephony API (TAPI) Programmer's Reference
Unix Manual Pages

Free Tech Secrets ;) Copyright © 2008-2012 Free Tech Secrets ;) greatis just4fun network just4fun