public static extern int mixerGetControlDetails( int hmxobj, ref MIXERCONTROLDETAILS pmxcd, int fdwDetails );
private int GetValue(int controlid)
{
IntPtr volumes=Marshal.AllocCoTaskMem(Marshal.SizeOf(typeof(int))*2);
Marshal.WriteInt32(volumes,0);
CSS.IM.Library.AV.MIXERCONTROLDETAILS details=new MIXERCONTROLDETAILS();
details.cbStruct=Marshal.SizeOf(details);
details.cChannels=1;
details.cbDetails=4;
details.cMultipleItems=0;
details.dwControlID=controlid;
details.paDetails=(int)volumes;
Mixer.mixerGetControlDetails(mixer.Handle,ref details,0);
int ret=Marshal.ReadInt32(volumes);
Marshal.FreeCoTaskMem(volumes);
return ret;
}
private void SetValue(int controlid,int value)
{
IntPtr volumes=Marshal.AllocCoTaskMem(Marshal.SizeOf(typeof(int))*2);
Marshal.WriteInt32(volumes,value);
CSS.IM.Library.AV.MIXERCONTROLDETAILS details=new MIXERCONTROLDETAILS();
details.cbStruct=Marshal.SizeOf(details);
details.cChannels=1;
details.cbDetails=4;
details.cMultipleItems=0;
details.dwControlID=controlid;
details.paDetails=(int)volumes;
int r=Mixer.mixerSetControlDetails(mixer.Handle,ref details,0);
System.Diagnostics.Trace.WriteLine(r.ToString());
int ret=Marshal.ReadInt32(volumes);
System.Diagnostics.Trace.WriteLine(ret.ToString());
Marshal.FreeCoTaskMem(volumes);
}
public static extern int mixerSetControlDetails( IntPtr hmxobj, ref MIXERCONTROLDETAILS pmxcd, uint fdwDetails );
