Sets @surface as the icon for a given drag. GTK+ retains
references for the arguments, and will release them when
they are no longer needed.
To position the surface relative to the mouse, use
cairo_surface_set_device_offset() on @surface. The mouse
cursor will be positioned at the (0,0) coordinate of the
surface.
Sets @surface as the icon for a given drag. GTK+ retains references for the arguments, and will release them when they are no longer needed.
To position the surface relative to the mouse, use cairo_surface_set_device_offset() on @surface. The mouse cursor will be positioned at the (0,0) coordinate of the surface.