Creates a semi-transparent version of an item's image for use as a dragging image. You can send this message explicitly or use the Header_CreateDragImage macro.
The zero-based index of the item within the header control. The image assigned to this item is the basis for the transparent image.
- Must be zero.
Returns a handle to an image list that contains the new image as its only element.
|Minimum supported client
||Windows Vista [desktop apps only]
|Minimum supported server
||Windows Server 2003 [desktop apps only]