HDM_SETORDERARRAY message

Sets the left-to-right order of header items. You can send this message explicitly or use the Header_SetOrderArray macro.

Parameters

wParam

The size of the buffer at lParam, in elements. This value must equal the value returned by HDM_GETITEMCOUNT.

lParam

A pointer to an array that specifies the order in which items should be displayed, from left to right. For example, if the contents of the array are {2,0,1}, the control displays item 2, item 0, and item 1, from left to right.

Return value

Returns nonzero if successful, or zero otherwise.

Requirements