OpenEuphoria

Re: win32lib: ListView with checkboxes

• Posted by Larry Miller <larrymiller at sasktel.net> Jan 17, 2006
• 474 views

There is no window style that will disable a Listview or Treeview that will not
also disable scrolling. But the effect can be simulated quite easily. The key is
in preventing the control from receiving the mouse button messages. Insert code
like this in the event handler for the control:

if id=listview and event=w32HMouse then
        returnValue(w32True)
    end if

id is the first parameter in the event handler and refers to the id of the
control in question.

To prevent selection of the control with the keyboard you will have to remove
the WS_TABSTOP style like this:
    removeStyle(listview, WS_TABSTOP)

This will prevent the client area of the listview from receiving any mouse
messages, thus preventing all selections. This has no effect on non-client areas
of the listview so scroling or use of the listview header will not be effected.

It is also possible to disable specific listview items but this requires more
complicated low level event handling.

A similar method should work with Treeviews. Let me know if you require any
further assistance.

Larry Miller