how to enable copy/paste functionality in a shell namespace extension ?

Question

How do I make it so copy and paste are enabled and handled by the shell namespace extension I am writing?  The extension I have is working in the center panel in windows explorer.  What do I do to make it so when a file or folder in the namespace is selected the copy/paste options on the file menu are enabled?

thanks,

Answer 1

For the class which represents your items, you should override IShellItem::GetAttributes and make sure you put the following items among the return attributes: 

SFGAO_CANCOPY | SFGAO_CANMOVE 

And in the folder containing the items you should override IShellFolder::GetAttributesOf method, and put SFGAO_DROPTARGET in the result attributes.

You can find more details in the following links:

http://msdn.microsoft.com/en-us/library/windows/desktop/bb761138(v=vs.85).aspx

http://msdn.microsoft.com/en-us/library/windows/desktop/bb775068(v=vs.85).aspx

http://msdn.microsoft.com/en-us/library/windows/desktop/bb762589(v=vs.85).aspx