Hi, Here is our first look at enabling inter-application DND. ABSTRACT : We want to link together OLE DND and an X Protocol. At the X Level we would have the choice of multiple protocols like Xdnd, Motif, OffiX, etc ... So far, Xdnd seems our best bet because it looks very similar to the windows way of doing DND. Even though it is not currently supported by all X applications, it seems to be catching on ( support is planned in both Gnome & KDE and many recent X applications). Also, nothing would prevent us to add support for other protocols later on. HOW DO WE PLAN TO DO THIS : To Drag from a Wine application to another Wine/X application. 1. We have to implement all event handlers for the chosen DND protocol at the X11DRV level. 2. We need to create an OLEDD_TrackMouseMove equivalent X11DRV function which would be called when WindowFromPoint fails ( i.e the mouse pointer is not directly above a Wine window). That same function will create an internal IDropTarget which we need to write. That object will provide the glue between the Wine OLE Drag and Drop and all other application through an X protocol (Xdnd for example). To Drag from an X to a Wine application. 1. All Wine windows will be marked has an X Drop Targets. 2. A handler for the X drop event will be written. It checks if the given Wine window is actually an OLE DropTarget and if so, it converts the event and forward it to the appropriate IDropTarget and do the DND communication with the source. These are the main lines. If you have any comments or suggestions please feel free to let us know ( in particular, we would appreciate any informations that could help us select an X protocol for DND ). Thanks, Jean-Claude Batista & Louis-Philippe Gagnon. Macadamian Technologies.
