TVN_SELCHANGED
The
TVN_SELCHANGED notification message notifies a tree-view control s parent
window that the selection has changed from one item to another. This
notification message is sent in the form of a WM_NOTIFY message.
TVN_SELCHANGED
pnmtv = (NM_TREEVIEW FAR *) lParam
Parameters
pnmtv
Pointer to an
NM_TREEVIEW structure.
The itemOld and itemNew members of the NM_TREEVIEW
structure are TV_ITEM
structures that contain information about the previously selected item and the
newly selected item. Only the mask, hItem, state, and lParam
members of these structures are valid. The stateMask members of the TV_ITEM
structures specified by itemOld and itemNew are undefined on
input.
The action
member of the NM_TREEVIEW structure indicates the type of action that
caused the selection to change. It can be one of the following values:
|
Value |
Meaning |
|
TVC_BYKEYBOARD |
By a key
stroke |
|
TVC_BYMOUSE |
By a mouse
click |
|
TVC_UNKNOWN |
Unknown |
Return Values
No return
value.
See Also