Header_GetOrderArray


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Header_GetOrderArray
BOOL Header_GetOrderArray(
    HWND hwndHD,
    int iSize,
    int *lpiArray
);
Retrieves the current left-to-right order of items in a header control. You can use this macro or send the HDM_GETORDERARRAY message explicitly.
Returns nonzero if successful, and the buffer at lpiArray receives the item number of each item in the header control in the order in which they appear from left to right. Returns zero otherwise.
hwndHD
Handle to a header control.
iSize
Number of integer elements that lpiArray can hold. This value must be equal to or greater than the number of items in the control (see HDM_GETITEMCOUNT).
lpiArray
Address of an array of integers that receive the index values for items in the header. The number of elements in this array is specified in iSize and must be equal to or greater than the number of items in the control. For example, the following code fragment will reserve enough memory to hold the index values.
int iItems,
    *lpiArray;
	
// Get memory for buffer
if((iItems = SendMessage(hwndHD, HDM_GETITEMCOUNT, 0,0))!=-1)
    if(!(lpiArray = calloc(iItems,sizeof(int))))
MessageBox(hwnd, "Out of memory.","Error", MB_OK);
Version 4.70

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