The LVM_SORTITEMS message 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 send this message explicitly or by using the ListView_SortItems macro.
LVM_SORTITEMS wParam = (WPARAM) (LPARAM) lParamSort; lParam = (LPARAM) (PFNLVCOMPARE) pfnCompare;
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 items’ 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.
file: /Techref/os/win/api/win32/mess/src/msg13_8.htm, 2KB, , updated: 2008/3/17 23:27, local time: 2024/9/4 03:16,
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