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HDN_BEGINTRACK

A version of this page is also available for

Windows Embedded CE 6.0 R3

4/8/2010

This message notifies a header control parent window the user has begun dragging a divider in the control; that is, the user has pressed the stylus to the touch screen over a divider in the header control. It is sent in the form of a WM_NOTIFY message.

Syntax

HDN_BEGINTRACK phdn = (HD_NOTIFY FAR *) lParam;

Parameters

  • phdn
    Pointer to an NMHEADER structure that contains data about the header control and the item whose divider is dragged.

Return Value

TRUE prevents tracking. FALSE enables tracking of the divider.

Requirements

Header commctrl.h
Windows Embedded CE Windows CE 1.0 and later
Windows Mobile Windows Mobile Version 5.0 and later

See Also

Reference

Header Controls Notifications
HDN_ENDTRACK
HDN_TRACK
WM_NOTIFY
NMHEADER