TVN_BEGINDRAG

The TVN_BEGINDRAG notification message notifies a tree-view control's parent window that a drag-and-drop operation involving the left mouse button is being initiated. This notification message is sent in the form of a WM_NOTIFY message.

TVN_BEGINDRAG

pnmtv = (NM_TREEVIEW FAR *) lParam

Parameters

pnmtv

Pointer to an NM_TREEVIEW structure. The itemNew member is a TV_ITEM structure that contains valid information about the item being dragged in the hItem, state, and lParam members. The ptDrag member specifies the current screen coordinates of the mouse.

Return Values

No return value.

Remarks

A tree-view control that has the TVS_DISABLEDRAGDROP style does not send this notification message.

See Also

NM_TREEVIEW, TV_ITEM, WM_NOTIFY

Software for developers

Delphi Components
.Net Components
Software for Android Developers

More information resources

MegaDetailed.Net
Unix Manual Pages
Delphi Examples

Databases for Amazon shops developers

Amazon Categories Database
Browse Nodes Database