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TV_SORTCB info  Overview  Group

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.

See Also

TV_ITEM, TVM_SORTCHILDRENCB

See also:


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