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ListView_SortItems info  Overview  Group

The ListView_SortItems macro uses an application-defined comparison function to sort the items of a list view control. The index of each item changes to reflect the new sequence. You can use this macro or explicitly send the LVM_SORTITEMS message.

BOOL ListView_SortItems(

    HWND hwnd,

    PFNLVCOMPARE pfnCompare,

    LPARAM lParamSort



Handle to the list view control.
Pointer to the application-defined comparison function. The comparison function is called during the sort operation each time the relative order of two list items needs to be compared.
Application-defined value that is passed to the comparison function.

Return Values

Returns TRUE if successful or FALSE otherwise.


The comparison function has the following form:

int CALLBACK CompareFunc(LPARAM lParam1, LPARAM lParam2, 

    LPARAM lParamSort); 


The lParam1 parameter is the 32-bit value associated with the first item being compared; and the lParam2 parameter is the value associated with the second item. These are the values that were specified in the lParam member of the itemsí LV_ITEM structure when they were inserted into the list. The lParamSort parameter is the same value passed to the LVM_SORTITEMS message.

The comparison 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.

See Also


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