TVM_CREATEDRAGIMAGETVM_CREATEDRAGIMAGE*
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TVM_CREATEDRAGIMAGE


TVM_CREATEDRAGIMAGE 
    wParam = 0; 
    lParam = (LPARAM) (HTREEITEM) hitem;

Creates a dragging bitmap for the specified item in a tree view control. The message also creates an image list for the bitmap and adds the bitmap to the image list. An application can display the image when dragging the item by using the image list functions. You can send this message explicitly or by using the TreeView_CreateDragImage macro.

hitem
Handle to the item that receives the new dragging bitmap.

If you create a tree view control without an associated image list, you cannot use the TVM_CREATEDRAGIMAGE message to create the image to display during a drag operation. You must implement your own method of creating a drag cursor.

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