Drag List Box

This section contains information about the functions, notification codes, and structures associated with drag list boxes.

Overviews

Topic	Contents
Drag List Boxes	A drag list box is a special type of list box that enables the user to drag items from one position to another.

 

Functions

Topic	Contents
DrawInsert	Draws the insert icon in the parent window of the specified drag list box.
LBItemFromPt	Retrieves the index of the item at the specified point in a list box.
MakeDragList	Changes the specified single-selection list box to a drag list box.

 

Notifications

Topic	Contents
DL_BEGINDRAG	Notifies the drag list box's parent window that the user has clicked the left mouse button on an item. A drag list box sends this notification code in the form of a drag list message.
DL_CANCELDRAG	Signals that the user has canceled a drag operation by clicking the right mouse button or pressing the ESC key. A drag list box sends this notification code in the form of a drag list message.
DL_DRAGGING	Signals that the user has moved the mouse while dragging an item. DL_DRAGGING is also sent periodically during dragging even if the mouse is not moved. A drag list box sends this notification code in the form of a drag list message.
DL_DROPPED	Signals that the user has completed a drag operation by releasing the left mouse button. A drag list box sends this notification code in the form of a drag list message.

 

Structures

Topic	Contents
DRAGLISTINFO	Contains information about a drag event. The pointer to DRAGLISTINFO is passed as the lParam parameter of the drag list message.

 

 

 

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Build date: 1/26/2011