/// <summary>
/// Sends the ServiceID to CAM to start decryption.
/// </summary>
/// <param name="serviceId">Service ID</param>
/// <returns>true if successful or no CI available</returns>
public bool SendServiceIdToCam(Int32 serviceId)
{
IKsControl pControl = CiFilter as IKsControl;
if (pControl == null)
{
return(true);
}
KSMETHOD KsProperty = new KSMETHOD(KSPROPERTYSET_DD_COMMON_INTERFACE,
(Int32)KSPROPERTY_DD_COMMON_INTERFACE.KSPROPERTY_DD_DECRYPT_PROGRAM,
KSPROPERTY_TYPE_SET);
Int32 paramSize = Marshal.SizeOf(sizeof(Int32));
Int32 dwReturned = 0;
// Initialize unmanged memory to hold the struct.
IntPtr pSid = Marshal.AllocHGlobal(paramSize);
Marshal.WriteInt32(pSid, serviceId);
try
{
Int32 hr = pControl.KsProperty(ref KsProperty, Marshal.SizeOf(KsProperty),
pSid, paramSize,
ref dwReturned);
Log.Log.Debug(
FormatMessage(String.Format("--> Setting service id {0} for decrypting returned {1}", serviceId, hr)));
return(hr == 0);
}
finally
{
// Free the unmanaged memory.
Marshal.FreeHGlobal(pSid);
}
}
private bool GetMenuTitle(out DD_CAM_MENU_TITLE MenuTitle)
{
MenuTitle = new DD_CAM_MENU_TITLE();
IKsControl pControl = CiFilter as IKsControl;
if (pControl == null)
{
return(false);
}
KSMETHOD KsProperty = new KSMETHOD(KSPROPERTYSET_DD_COMMON_INTERFACE,
(Int32)KSPROPERTY_DD_COMMON_INTERFACE.KSPROPERTY_DD_CAM_MENU_TITLE,
KSPROPERTY_TYPE_GET);
Int32 ulMenuSize = Marshal.SizeOf(MenuTitle);
Int32 dwReturned = 0;
// Initialize unmanged memory to hold the struct.
IntPtr pTitle = Marshal.AllocHGlobal(Marshal.SizeOf(MenuTitle));
try
{
Int32 hr = pControl.KsProperty(ref KsProperty, Marshal.SizeOf(KsProperty),
pTitle, ulMenuSize,
ref dwReturned
);
if (hr != 0 || dwReturned != ulMenuSize)
{
return(false);
}
MenuTitle = (DD_CAM_MENU_TITLE)Marshal.PtrToStructure(pTitle, typeof(DD_CAM_MENU_TITLE));
return(true);
}
finally
{
// Free the unmanaged memory.
Marshal.FreeHGlobal(pTitle);
}
}