disaple sound card

hi every 1

can any 1 help me

i have windows app i want to disaple the sound card and enable the sound card by using command button

thank you

no one to answer u diff question

u need prof to do that

I am pretty sure disabling the sound card would be a bad thing, it is heading towards making a virus. If you mean muting the volume, use the waveOutSetVolume:

Code:

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Public Declare Function waveOutSetVolume Lib "coredll.dll" (ByVal device As IntPtr, ByVal volume As Integer) As Integer

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(taken from PInvoke.net)

Where the volume is a bundle of two shorts, which can also be seen as this:

Code:

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Public Structure volume
    Public left As Short
    Public right As Short
End Structure
Public Declare Function waveOutSetVolume Lib "coredll.dll" (ByVal device As IntPtr, ByVal volume As volume) As Integer

---

Code:

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Dim rval As Integer = waveOutSetVolume(0, 0)

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Mutes the volume.

For enabling/disabling take a look at this post (in c++)
http://stackoverflow.com/questions/1...disable-device