void gdk_toplevel_begin_move ( GdkToplevel* toplevel, GdkDevice* device, int button, double x, double y, guint32 timestamp )
Begins an interactive move operation.
You might use this function to implement draggable titlebars.
The device used for the operation.
The data is owned by the caller of the function.
The button being used to drag, or 0 for a keyboard-initiated drag.
Surface X coordinate of mouse click that began the drag.
Surface Y coordinate of mouse click that began the drag.
Timestamp of mouse click that began the drag (use