HDM_ORDERTOINDEX


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HDM_ORDERTOINDEX
HDM_ORDERTOINDEX
    wParam = (WPARAM) iOrder;
    lParam = 0;
Retrieves an index value for an item based on its order in the header control. You can send this message explicitly or use the Header_OrderToIndex macro.
Returns INT that indicates the item index. If iOrder is invalid (negative or too large), the return equals iOrder.

iOrder
Order in which the item appears within the header control, from left to right. For example, the index value of the item in the far left column would be 0. The value for the next item to the right would be 1, and so on.

Version 4.70

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