TV_SORTCB

Overview

Group

Quick Info

Windows NT
Yes
Win95
Yes
Win32s
Yes
Import Library
-
Header File
commctrl.h
Unicode
No
Platform Notes
None

The TV_SORTCB structure contains information used to sort child items in a tree-view control.

typedef struct _TV_SORTCB { tvscb

HTREEITEM hParent;

PFNTVCOMPARE lpfnCompare;

LPARAM lParam;

} TV_SORTCB, FAR *LPTV_SORTCB;

Members
lpfnCompare
Pointer to an application-defined callback function, which is called during a sort operation each time the relative order of two list items needs to be compared. The callback function has the following form:

int CALLBACK CompareFunc(LPARAM lParam1, LPARAM lParam2,

LPARAM lParamSort);

The callback function must return a negative value if the first item should precede the second, a positive value if the first item should follow the second, or zero if the two items are equivalent.

The lParam1 and lParam2 parameters correspond to the lParam member of the TV_ITEM structure for the two items being compared. The lParamSort parameter corresponds to the lParam member of the TV_SORTCB structure that was passed with the TVM_SORTCHILDRENCB message.

hParent
Handle to the parent item.

lParam
Application-defined 32-bit value.

Remarks
This structure is used with the TVM_SORTCHILDRENCB message.