ChromiumWebBrowserStartDragging Method

Called when the user starts dragging content in the web view. OS APIs that run a system message loop may be used within the StartDragging call. Don't call any of IBrowserHost::DragSource*Ended* methods after returning false. Call IBrowserHost.DragSourceEndedAt and DragSourceSystemDragEnded either synchronously or asynchronously to inform the web view that the drag operation has ended.

protected virtual bool StartDragging(
	IDragData dragData,
	DragOperationsMask allowedOps,
	int x,
	int y
)

protected:
virtual bool StartDragging(
	IDragData^ dragData, 
	DragOperationsMask allowedOps, 
	int x, 
	int y
)