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GimpValueArray * (*GimpRunThumbnailFunc) (GimpProcedure *procedure
,GFile *file
,gint size
,const GimpValueArray *args
,gpointer run_data
);
The thumbnail function is run during the lifetime of the GIMP session, each time a plug-in thumbnail procedure is called.
procedure |
the GimpProcedure that runs. |
|
file |
the GFile to load the thumbnail from. |
|
size |
the requested thumbnail size. |
|
args |
the |
|
run_data |
the run_data given in |
[closure] |
Since: 3.0
GimpProcedure * gimp_thumbnail_procedure_new (GimpPlugIn *plug_in
,const gchar *name
,GimpPDBProcType proc_type
,GimpRunThumbnailFunc run_func
,gpointer run_data
,GDestroyNotify run_data_destroy
);
Creates a new thumbnail procedure named name
which will call run_func
when invoked.
See gimp_procedure_new()
for information about proc_type
.
GimpThumbnailProcedure is a GimpProcedure subclass that makes it easier to write file thumbnail procedures.
It automatically adds the standard
(GFile, size)
arguments and the standard
(GimpImage, image-width, image-height, GimpImageType, num-layers)
return value of a thumbnail procedure. It is possible to add additional arguments.
When invoked via gimp_procedure_run()
, it unpacks these standard
arguments and calls run_func
which is a GimpRunThumbnailFunc. The
"args" GimpValueArray of GimpRunThumbnailFunc only contains
additionally added arguments.
GimpRunThumbnailFunc must gimp_value_array_truncate()
the returned
GimpValueArray to the number of return values it actually uses.
plug_in |
a GimpPlugIn. |
|
name |
the new procedure's name. |
|
proc_type |
the new procedure's GimpPDBProcType. |
|
run_func |
the run function for the new procedure. |
|
run_data |
user data passed to |
|
run_data_destroy |
free function for |
[nullable] |
Since: 3.0