Asynchronously load, render and scale a symbolic icon previously looked up from the icon theme using lookup_icon.
For more details, see load_symbolic_for_context which is the synchronous version of this call.
this |
a IconInfo from lookup_icon |
context | |
cancellable |
optional Cancellable object, null to ignore |
callback |
a TaskReadyCallback to call when the request is satisfied |
user_data |
the data to pass to callback function |