PATHMac OS 8 and 9 Developer Documentation > Human Interface Toolbox > Window Manager >

Programming With the Mac OS 8.5 Window Manager

Coordinating Proxy Icons With Drag-and-Drop Management

The Mac OS 8.5 Window Manager provides the following functions for dragging proxy icons:

• TrackWindowProxyDrag handles all aspects of the drag process when the user drags a proxy icon.
• TrackWindowProxyFromExistingDrag allows custom handling of the drag process when the user drags a proxy icon.
• BeginWindowProxyDrag creates the drag reference and the drag image when the user drags a proxy icon.
• EndWindowProxyDrag disposes of the drag reference when the user completes the drag of a proxy icon.

The Mac OS 8.5 Window Manager provides the following functions for indicating whether a proxy icon can currently be dragged:

• SetWindowModified sets the modification state of the specified window.
• IsWindowModified obtains the modification state of the specified window.

The Mac OS 8.5 Window Manager provides the following function for indicating whether a window is a valid drag-and-drop target:

• HiliteWindowFrameForDrag sets the highlight state of the window's structure region to reflect the window's validity as a drag-and-drop destination.