@msdn=http://search.microsoft.com/search/results.aspx?qu=$$$ @pinvoke=http://pinvoke.net/$$$.htm Summary: Set the volume of the specified device. !!!!C# Signature: [DllImport("winmm.dll", SetLastError=true, CallingConvention=CallingConvention.Winapi)] public static extern uint waveOutSetVolume(int uDeviceID, uint dwVolume); [DllImport("winmm.dll", SetLastError=true, CallingConvention=CallingConvention.Winapi)] public static extern uint waveOutSetVolume(IntPtr uDeviceID, uint dwVolume); !!!!VB Signature: Declare Auto Function waveOutSetVolume Lib "winmm.dll" (ByVal uDeviceID As IntPtr, ByVal dwVolume As UInteger) As UInteger !!!!User-Defined Types: None. !!!!Alternative Managed API: Do you know one? Please contribute it! !!!!Notes: VB - Use "Auto" in the Declare statement to have VB automatically marshal strings using the proper coding. ANSI is default. !!!!Tips & Tricks: Please add some! !!!!Sample Code: // Each volume setting must be in the range between &H0 (silence) and &HFFFF (maximum volume). // ' Set the volume for all channels to &H7FFF (50%) // retval = waveOutSetVolume(0, &H7FFF7FFF) ' for both channels, if needed public void SetVolume(uint volume) { if (m_WaveOut != IntPtr.Zero) WaveNative.waveOutSetVolume(m_WaveOut,volume); } Documentation: waveOutSetVolume@msdn on MSDN
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