auto-select nodes in ttreeview via wmdropfiles

[tarja311]

Hi guys,

I am building a chat application, and in this application is a TTreeView component that displays the list of contacts. This works great. I then implemented "WMDROPFILES" so they can drag 'n drop files from their desktops onto their contacts as a quick way to send data files (doc, zip, mp3, ect). This also works flawlessly.

My problem is that the user *has* to highlight the contact first in order to send something. When a file is dragged over a specific contact, it does not automatically highlight (select) them, it responds to what ever was previously highlighted.

Does anyone know how I can get it to auto-select a node (contact) in a TTreeView?

I am using :
- CodeGear Delphi 2007
- Windows Vista SP1

Thanks!

 

[roo0047]

I'm not in Delphi at the moment, but the 1st thing I'd look for is property 'OnMouseOver' event in TreeView (or it's descendant) and initiate the 'Select'.

Roo
Delphi Rules!

 

[DjangMan]

Perhaps DropTarget? From help: "Read DropTarget to determine whether a node in the tree view is drawn as the target of a drag and drop operation. Set DropTarget when specifying a particular node in the tree view as the drop target of a dragged item."

Hot Track will help the user to get the right node and then perhaps OnMouseUp will give you the X, Y values to use the .getnodeat method.

 

[tarja311]

Thanks guys. I will look into it.