Struct

GdkContentFormats

Description [src]

struct GdkContentFormats {
  /* No available fields */
}

The GdkContentFormats structure is used to advertise and negotiate the format of content.

You will encounter GdkContentFormats when interacting with objects controlling operations that pass data between different widgets, window or application, like GdkDrag, GdkDrop, GdkClipboard or GdkContentProvider.

GDK supports content in 2 forms: GType and mime type. Using GTypes is meant only for in-process content transfers. Mime types are meant to be used for data passing both in-process and out-of-process. The details of how data is passed is described in the documentation of the actual implementations. To transform between the two forms, GdkContentSerializer and GdkContentDeserializer are used.

A GdkContentFormats describes a set of possible formats content can be exchanged in. It is assumed that this set is ordered. GTypes are more important than mime types. Order between different GTypes or mime types is the order they were added in, most important first. Functions that care about order, such as gdk_content_formats_union(), will describe in their documentation how they interpret that order, though in general the order of the first argument is considered the primary order of the result, followed by the order of further arguments.

For debugging purposes, the function gdk_content_formats_to_string() exists. It will print a comma-separated list of formats from most important to least important.

GdkContentFormats is an immutable struct. After creation, you cannot change the types it represents. Instead, new GdkContentFormats have to be created. The GdkContentFormatsBuilder structure is meant to help in this endeavor.

Constructors

gdk_content_formats_new

Creates a new GdkContentFormats from an array of mime types.

gdk_content_formats_new_for_gtype

Creates a new GdkContentFormats for a given GType.

Instance methods

gdk_content_formats_contain_gtype

Checks if a given GType is part of the given formats.

gdk_content_formats_contain_mime_type

Checks if a given mime type is part of the given formats.

gdk_content_formats_get_gtypes

Gets the GTypes included in formats.

gdk_content_formats_get_mime_types

Gets the mime types included in formats.

gdk_content_formats_match

Checks if first and second have any matching formats.

gdk_content_formats_match_gtype

Finds the first GType from first that is also contained in second.

gdk_content_formats_match_mime_type

Finds the first mime type from first that is also contained in second.

gdk_content_formats_print

Prints the given formats into a string for human consumption.

gdk_content_formats_ref

Increases the reference count of a GdkContentFormats by one.

gdk_content_formats_to_string

Prints the given formats into a human-readable string.

gdk_content_formats_union

Append all missing types from second to first, in the order they had in second.

gdk_content_formats_union_deserialize_gtypes

Add GTypes for mime types in formats for which deserializers are registered.

gdk_content_formats_union_deserialize_mime_types

Add mime types for GTypes in formats for which deserializers are registered.

gdk_content_formats_union_serialize_gtypes

Add GTypes for the mime types in formats for which serializers are registered.

gdk_content_formats_union_serialize_mime_types

Add mime types for GTypes in formats for which serializers are registered.

gdk_content_formats_unref

Decreases the reference count of a GdkContentFormats by one.