Hi Tomasz,

I notice you use InterfaceID.Keycontrol, which is incorrect. In the SDK docs I_KEYCONTROL is 0x00001060, while InterfaceID.Keycontrol = 0x00001100. So try:

var keys = (IIKeyControl)icontrol.PositionController.GetInterface(0x00001100);

instead and see if that works.

Marsel Khadiyev (Software Developer, EPHERE Inc.)

Hi Tomasz,

Yes that is strange indeed (that it'd return null). Perhaps the upcasting code is using the wrong interface ID, I will check that. Meanwhile you can use MaxScript functions to access keys. I had to tackle the same problem in ZK and ended up using maxscript for most of the key handling.

For example, to get number of keys I use:

int keyCount = MaxScript.ExecuteWithReference( "numKeys {reference}", control ).ToInt;

You do need to make sure that {reference} is replaced with your control (you need to be able to get to the control either through the node or object you're editing).

Other examples, to get key time:

int currentKeyTime = MaxScript.ExecuteWithReference( "( getKeyTime {reference} " + ( i + 1 ) + " ) as integer", control ).ToInt;

to delete keys:

MaxScript.ExecuteWithReference( "deleteKeys {reference}", control );

etc. Hope this helps.

Marsel Khadiyev (Software Developer, EPHERE Inc.)

Thanks Tomasz,

I guess this requires more tweaking.

Marsel Khadiyev (Software Developer, EPHERE Inc.)