TVM_CREATEDRAGIMAGE

Overview

Group

Quick Info

Windows NT
Yes
Win95
Yes
Win32s
Yes
Import Library
-
Header File
commctrl.h
Unicode
No
Platform Notes
None

The TVM_CREATEDRAGIMAGE message creates a dragging bitmap for the specified item in a tree-view control, 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.

TVM_CREATEDRAGIMAGE

wParam = 0;

lParam = (LPARAM) (HTREEITEM) hitem;

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

Return Values
Returns the handle of the image list to which the dragging bitmap was added if successful or NULL otherwise.

Remarks
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 way to support drag and drop cursor.