automate a drag and drop operation

hi experts,
Pls help. I want to automate a the process of dragging a particular treeview item and drop it on another treeview control (both treeview controls are child windows of   another application running on win2000) .I

I tried by sending mouse  (WM_)mouse  messages to mimic the clicking of a treeview node and wm_lbuttonup message to the target treeview  but nothing worked.

I understand that in the other application the first treeview control is capturing the mouse when ever a mouse is held down .(found using the spy++)
But i have no idea ,as how to force a window in another application to capture the mouse and make it believe that an actual dragging operation is underway.



pls help.  
sundeep07_erAsked:
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Amritpal SinghCommented:
plz have a look at the following link
it is not specific to ur problem but may be of any help

http://www.developer.com/net/vb/article.php/609591
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Mikal613Commented:
If it doesnt support it then it wont do it
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