HDN_BEGINTRACK
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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