SendMessage to SysTreeView32...

Hi,
I've been looking around for the last 3 days to find out how to send a message to a TreeView Control on another app and have that control respond accordingly...

The 2 things I'm trying to do are:

1. Select an item in the control, then select the next item below, and so on, but can't figure out how to do this with SendMessage and TVM_SELECTITEM.

2. Getting the control to respond accordingly to a click message using SendMessage and WM_LBUTTONDBLCLICK, WM_LBUTTONDOWN, WM_LBUTTONUP as well as the Right button counterparts... I need a right click on the item selected in the control so that the appropriate menu pops up.

Does anyone know to do this?? All Help is much appreciated, as I said, I've searched for 3 days for an answer to these questions, but can't find them in MSDN, allapi.net, etc.

Thanx a million in advance,

-Scott