gtkmm: Gtk::Clipboard Class Reference
The Clipboard object represents a clipboard of data shared between different processes or between different widgets in the same process. More...
Public Types | |
typedef sigc::slot< void, SelectionData&, guint > | SlotGet |
For instance: void on_get(Gtk::SelectionData& selection_data, guint info);. | |
typedef sigc::slot< void > | SlotClear |
For instance: void on_clear();. | |
typedef sigc::slot< void, const SelectionData& > | SlotReceived |
For instance: void on_received(const SelectionData& selection_data);. | |
typedef sigc::slot< void, const Glib::ustring& > | SlotTextReceived |
For instance: void on_text_received(const Glib::ustring& text);. | |
typedef sigc::slot< void, const Glib::ustring &, const std::string& > | SlotRichTextReceived |
For instance: void on_rich_text_received(const Glib::ustring& format, const std::string& text);. | |
typedef sigc::slot< void, const std::vector < Glib::ustring >& > | SlotUrisReceived |
For instance: void on_uris_received(const std::vector<Glib::ustring>& uris);. | |
typedef sigc::slot< void, const Glib::RefPtr < Gdk::Pixbuf >& > | SlotImageReceived |
For instance: void on_image_received(const Glib::RefPtr<Gdk::Pixbuf>& text);. | |
typedef sigc::slot< void, const std::vector < Glib::ustring >& > | SlotTargetsReceived |
For instance: void on_targets_received(const std::vector<Glib::ustring>& targets);. | |
Public Types inherited from Glib::Object | |
typedef void(* | DestroyNotify )(gpointer data) |
Public Member Functions | |
virtual | ~Clipboard () |
GtkClipboard* | gobj () |
Provides access to the underlying C GObject. | |
const GtkClipboard* | gobj () const |
Provides access to the underlying C GObject. | |
GtkClipboard* | gobj_copy () |
Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. | |
Glib::RefPtr< Gdk::Display > | get_display () |
Gets the Gdk::Display associated with clipboard. | |
Glib::RefPtr< const Gdk::Display > | get_display () const |
Gets the Gdk::Display associated with clipboard. | |
bool | set (const std::vector< TargetEntry >& targets, const SlotGet& slot_get, const SlotClear& slot_clear) |
Virtually sets the contents of the specified clipboard by providing a list of supported formats for the clipboard data and a function to call to get the actual data when it is requested. | |
Glib::RefPtr< Glib::Object > | get_owner () |
If the clipboard contents callbacks were set with set_with_owner(), and the set_with_data() or clear() has not subsequently called, returns the owner set by set_with_owner(). | |
Glib::RefPtr< const Glib::Object > | get_owner () const |
If the clipboard contents callbacks were set with set_with_owner(), and the set_with_data() or clear() has not subsequently called, returns the owner set by set_with_owner(). | |
void | clear () |
Clears the contents of the clipboard. | |
void | set_text (const Glib::ustring& text) |
Sets the contents of the clipboard to the given UTF-8 string. | |
void | set_image (const Glib::RefPtr< Gdk::Pixbuf >& pixbuf) |
Sets the contents of the clipboard to the given Gdk::Pixbuf. | |
void | request_contents (const Glib::ustring& target, const SlotReceived& slot) |
Requests the contents of clipboard as the given target. | |
void | request_text (const SlotTextReceived& slot) |
Requests the contents of the clipboard as text. | |
void | request_rich_text (const Glib::RefPtr< TextBuffer >& buffer, const SlotRichTextReceived& slot) |
Requests the contents of the clipboard as rich text. | |
void | request_uris (const SlotUrisReceived& slot) |
Requests the contents of the clipboard as URIs. | |
void | request_image (const SlotImageReceived& slot) |
Requests the contents of the clipboard as image. | |
void | request_targets (const SlotTargetsReceived& slot) |
Requests the contents of the clipboard as list of supported targets. | |
SelectionData | wait_for_contents (const Glib::ustring& target) const |
Requests the contents of the clipboard using the given target. | |
Glib::ustring | wait_for_text () const |
Requests the contents of the clipboard as text and converts the result to UTF-8 if necessary. | |
std::string | wait_for_rich_text (const Glib::RefPtr< TextBuffer >& buffer, std::string& format) |
Glib::RefPtr< Gdk::Pixbuf > | wait_for_image () const |
Requests the contents of the clipboard as image and converts the result to a Gdk::Pixbuf. | |
bool | wait_is_text_available () const |
Test to see if there is text available to be pasted This is done by requesting the TARGETS atom and checking if it contains any of the supported text targets. | |
bool | wait_is_rich_text_available (const Glib::RefPtr< TextBuffer >& buffer) const |
Test to see if there is rich text available to be pasted This is done by requesting the TARGETS atom and checking if it contains any of the supported rich text targets. | |
bool | wait_is_image_available () const |
Test to see if there is an image available to be pasted This is done by requesting the TARGETS atom and checking if it contains any of the supported image targets. | |
bool | wait_is_uris_available () const |
Test to see if there is a list of URIs available to be pasted This is done by requesting the TARGETS atom and checking if it contains the URI targets. | |
bool | wait_is_target_available (const Glib::ustring& target) |
Checks if a clipboard supports pasting data of a given type. | |
std::vector< Glib::ustring > | wait_for_targets () const |
Returns a list of targets that are present on the clipboard. | |
std::vector< Glib::ustring > | wait_for_uris () const |
Requests the contents of the clipboard as URIs. | |
void | set_can_store (const std::vector< TargetEntry >& targets) |
Hints that the clipboard data should be stored somewhere when the application exits or when store() is called. | |
void | set_can_store () |
Hints that all forms of clipboard data should be stored somewhere when the application exits or when store() is called. | |
void | store () |
Stores the current clipboard data somewhere so that it will stay around after the application has quit. | |
Glib::SignalProxy1< void, GdkEventOwnerChange* > | signal_owner_change () |
Public Member Functions inherited from Glib::Object | |
void * | get_data (const QueryQuark &key) |
void | set_data (const Quark &key, void *data) |
void | set_data (const Quark &key, void *data, DestroyNotify notify) |
void | remove_data (const QueryQuark &quark) |
void * | steal_data (const QueryQuark &quark) |
void | set_property_value (const Glib::ustring &property_name, const Glib::ValueBase &value) |
void | get_property_value (const Glib::ustring &property_name, Glib::ValueBase &value) const |
void | set_property (const Glib::ustring &property_name, const PropertyType &value) |
void | get_property (const Glib::ustring &property_name, PropertyType &value) const |
void | connect_property_changed (const Glib::ustring &property_name, const sigc::slot< void > &slot) |
sigc::connection | connect_property_changed_with_return (const Glib::ustring &property_name, const sigc::slot< void > &slot) |
void | freeze_notify () |
void | thaw_notify () |
virtual void | reference () const |
virtual void | unreference () const |
GObject * | gobj_copy () const |
Glib::RefPtr< Glib::Object > | wrap (GObject *object, bool take_copy=false) |
Static Public Member Functions | |
static GType | get_type () |
Get the GType for this class, for use with the underlying GObject type system. | |
static Glib::RefPtr< Clipboard > | get (GdkAtom selection=GDK_SELECTION_CLIPBOARD) |
Returns the clipboard object for the given selection. | |
static Glib::RefPtr< Clipboard > | get_for_display (const Glib::RefPtr< Gdk::Display >& display, GdkAtom selection=GDK_SELECTION_CLIPBOARD) |
Returns the clipboard object for the given selection. |
Related Functions | |
(Note that these are not member functions.) | |
Glib::RefPtr< Gtk::Clipboard > | wrap (GtkClipboard* object, bool take_copy=false) |
A Glib::wrap() method for this object. |
Additional Inherited Members | |
Protected Member Functions inherited from Glib::Object | |
Object () | |
Object (const Glib::ConstructParams &construct_params) | |
Object (GObject *castitem) | |
virtual | ~Object () |
ObjectBase () | |
ObjectBase (const char *custom_type_name) | |
ObjectBase (const std::type_info &custom_type_info) | |
virtual | ~ObjectBase ()=0 |
void | initialize (GObject *castitem) |
Detailed Description
The Clipboard object represents a clipboard of data shared between different processes or between different widgets in the same process.
Each clipboard is identified by a name encoded as a GdkAtom. * (Conversion to and from strings can be done with gdk_atom_intern() and gdk_atom_name().) The default clipboard corresponds to the "CLIPBOARD" atom; another commonly used clipboard is the "PRIMARY" clipboard, which, in X, traditionally contains the currently selected text.
To support having a number of different formats on the clipboard at the same time, the clipboard mechanism allows providing callbacks instead of the actual data. When you set the contents of the clipboard, you can either supply the data directly (via functions like set_text()), or you can supply a callback to be called at a later time when the data is needed (via set().) Providing a callback also avoids having to make copies of the data when it is not needed.
Requesting the data from the clipboard is essentially asynchronous. If the contents of the clipboard are provided within the same process, then a direct function call will be made to retrieve the data, but if they are provided by another process, then the data needs to be retrieved from the other process, which may take some time. To avoid blocking the user interface, the call to request the selection, request_contents() takes a callback that will be called when the contents are received (or when the request fails.) If you don't want to deal with providing a separate callback, you can also use wait_for_contents(). This runs the GLib main loop recursively waiting for the contents. This can simplify the code flow, but you still have to be aware that other callbacks in your program can be called while this recursive mainloop is running.
Along with the functions to get the clipboard contents as an arbitrary data chunk, there are also functions to retrieve it as text, request_text() and wait_for_text(). These functions take care of determining which formats are advertised by the clipboard provider, asking for the clipboard in the best available format and converting the results into the UTF-8 encoding.
Member Typedef Documentation
typedef sigc::slot<void> Gtk::Clipboard::SlotClear |
For instance: void on_clear();.
typedef sigc::slot<void, SelectionData&, guint> Gtk::Clipboard::SlotGet |
For instance: void on_get(Gtk::SelectionData& selection_data, guint info);.
typedef sigc::slot<void, const Glib::RefPtr<Gdk::Pixbuf>&> Gtk::Clipboard::SlotImageReceived |
For instance: void on_image_received(const Glib::RefPtr<Gdk::Pixbuf>& text);.
typedef sigc::slot<void, const SelectionData&> Gtk::Clipboard::SlotReceived |
For instance: void on_received(const SelectionData& selection_data);.
typedef sigc::slot<void, const Glib::ustring&, const std::string&> Gtk::Clipboard::SlotRichTextReceived |
For instance: void on_rich_text_received(const Glib::ustring& format, const std::string& text);.
typedef sigc::slot<void, const std::vector<Glib::ustring>&> Gtk::Clipboard::SlotTargetsReceived |
For instance: void on_targets_received(const std::vector<Glib::ustring>& targets);.
typedef sigc::slot<void, const Glib::ustring&> Gtk::Clipboard::SlotTextReceived |
For instance: void on_text_received(const Glib::ustring& text);.
typedef sigc::slot<void, const std::vector<Glib::ustring>&> Gtk::Clipboard::SlotUrisReceived |
For instance: void on_uris_received(const std::vector<Glib::ustring>& uris);.
Constructor & Destructor Documentation
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virtual |
Member Function Documentation
void Gtk::Clipboard::clear | ( | ) |
Clears the contents of the clipboard.
Generally this should only be called between the time you call set() and when the slot_clear you supplied is called. Otherwise, the clipboard may be owned by someone else.
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static |
Returns the clipboard object for the given selection.
See get_for_display() for complete details.
- Parameters:
-
selection A Gdk::Atom which identifies the clipboard to use.
- Returns:
- The appropriate clipboard object. If no clipboard already exists, a new one will be created. Once a clipboard object has been created, it is persistent and, since it is owned by GTK+, must not be freed or unreffed.
Glib::RefPtr<Gdk::Display> Gtk::Clipboard::get_display | ( | ) |
Gets the Gdk::Display associated with clipboard.
- Returns:
- The Gdk::Display associated with clipboard.
Glib::RefPtr<const Gdk::Display> Gtk::Clipboard::get_display | ( | ) | const |
Gets the Gdk::Display associated with clipboard.
- Returns:
- The Gdk::Display associated with clipboard.
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static |
Returns the clipboard object for the given selection.
Cut/copy/paste menu items and keyboard shortcuts should use the default clipboard, returned by passing Gdk::SELECTION_CLIPBOARD for selection. (Gdk::NONE is supported as a synonym for GDK_SELECTION_CLIPBOARD for backwards compatibility reasons.) The currently-selected object or text should be provided on the clipboard identified by Gdk::SELECTION_PRIMARY. Cut/copy/paste menu items conceptually copy the contents of the Gdk::SELECTION_PRIMARY clipboard to the default clipboard, i.e. they copy the selection to what the user sees as the clipboard.
(Passing Gdk::NONE is the same as using gdk_atom_intern ("CLIPBOARD",
. See http://www.freedesktop.org/Standards/clipboards-spec for a detailed discussion of the "CLIPBOARD" vs. "PRIMARY" selections under the X window system. On Win32 the Gdk::SELECTION_PRIMARY clipboard is essentially ignored.)false
)
It's possible to have arbitrary named clipboards; if you do invent new clipboards, you should prefix the selection name with an underscore (because the ICCCM requires that nonstandard atoms are underscore-prefixed), and namespace it as well. For example, if your application called "Foo" has a special-purpose clipboard, you might call it "_FOO_SPECIAL_CLIPBOARD".
- Parameters:
-
display The display for which the clipboard is to be retrieved or created. selection A Gdk::Atom which identifies the clipboard to use.
- Returns:
- The appropriate clipboard object. If no clipboard already exists, a new one will be created. Once a clipboard object has been created, it is persistent and, since it is owned by GTK+, must not be freed or unrefd.
Glib::RefPtr<Glib::Object> Gtk::Clipboard::get_owner | ( | ) |
If the clipboard contents callbacks were set with set_with_owner(), and the set_with_data() or clear() has not subsequently called, returns the owner set by set_with_owner().
- Returns:
- The owner of the clipboard, if any; otherwise
0
.
Glib::RefPtr<const Glib::Object> Gtk::Clipboard::get_owner | ( | ) | const |
If the clipboard contents callbacks were set with set_with_owner(), and the set_with_data() or clear() has not subsequently called, returns the owner set by set_with_owner().
- Returns:
- The owner of the clipboard, if any; otherwise
0
.
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static |
Get the GType for this class, for use with the underlying GObject type system.
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inline |
Provides access to the underlying C GObject.
Reimplemented from Glib::Object.
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inline |
Provides access to the underlying C GObject.
Reimplemented from Glib::Object.
GtkClipboard* Gtk::Clipboard::gobj_copy | ( | ) |
Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.
void Gtk::Clipboard::request_contents | ( | const Glib::ustring & | target, |
const SlotReceived& | slot | ||
) |
Requests the contents of clipboard as the given target.
When the results of the result are later received the supplied callback will be called.
- Parameters:
-
target The form into which the clipboard owner should convert the selection. slot A function to call when the results are received (or the retrieval fails). If the retrieval fails the length field of selection_data will be negative.
void Gtk::Clipboard::request_image | ( | const SlotImageReceived& | slot | ) |
Requests the contents of the clipboard as image.
When the image is later received, it will be converted to a Gdk::Pixbuf. This function waits for the data to be received using the main loop, so events, timeouts, etc, may be dispatched during the wait.
The pixbuf parameter to slot will contain the resulting pixbuf if the request succeeded, or will be empty if it failed. This could happen for various reasons, in particular if the clipboard was empty or if the contents of the clipboard could not be converted into image form.
- Parameters:
-
slot,: a function to call when the text is received, or the retrieval fails. (It will always be called one way or the other.)
void Gtk::Clipboard::request_rich_text | ( | const Glib::RefPtr< TextBuffer >& | buffer, |
const SlotRichTextReceived& | slot | ||
) |
Requests the contents of the clipboard as rich text.
When the rich text is later received, callback will be called.
The text parameter to the callback will contain the resulting rich text if the request succeeded, or an empty string if it failed. This function can fail for various reasons, in particular if the clipboard was empty or if the contents of the clipboard could not be converted into rich text form.
- Parameters:
-
slot,: a function to call when the text is received, or the retrieval fails. (It will always be called one way or the other.)
void Gtk::Clipboard::request_targets | ( | const SlotTargetsReceived& | slot | ) |
Requests the contents of the clipboard as list of supported targets.
When the list is later received, callback will be called.
The targets parameter to slot will contain the resulting targets if the request succeeded.
- Parameters:
-
slot a function to call when the targets are received, or the retrieval fails. (It will always be called one way or the other.)
void Gtk::Clipboard::request_text | ( | const SlotTextReceived& | slot | ) |
Requests the contents of the clipboard as text.
When the text is later received, it will be converted to UTF-8 if necessary, and slot will be called.
The text parameter to slot will contain the resulting text if the request succeeded, or will be empty if it failed. This could happen for various reasons, in particular if the clipboard was empty or if the contents of the clipboard could not be converted into text form.
- Parameters:
-
slot,: a function to call when the text is received, or the retrieval fails. (It will always be called one way or the other.)
void Gtk::Clipboard::request_uris | ( | const SlotUrisReceived& | slot | ) |
Requests the contents of the clipboard as URIs.
When the URIs are later received slot will be called.
The uris parameter to slot will contain the resulting array of URIs if the request succeeded, or an empty list if it failed. This could happen for various reasons, in particular if the clipboard was empty or if the contents of the clipboard could not be converted into URI form.
- Parameters:
-
slot A slot to call when the URIs are received, or the retrieval fails. (It will always be called one way or the other.)
bool Gtk::Clipboard::set | ( | const std::vector< TargetEntry >& | targets, |
const SlotGet& | slot_get, | ||
const SlotClear& | slot_clear | ||
) |
Virtually sets the contents of the specified clipboard by providing a list of supported formats for the clipboard data and a function to call to get the actual data when it is requested.
- Parameters:
-
targets Information about the available forms for the clipboard data. slot_get method to call to get the actual clipboard data. slot_clear When the clipboard contents are set again, this method will be called, and slot_get will not be subsequently called.
- Returns:
- true if setting the clipboard data succeeded. If setting the clipboard data failed then the provided callback methods will be ignored.
void Gtk::Clipboard::set_can_store | ( | const std::vector< TargetEntry >& | targets | ) |
Hints that the clipboard data should be stored somewhere when the application exits or when store() is called.
This value is reset when the clipboard owner changes. Where the clipboard data is stored is platform dependent, see Gdk::Display::store_clipboard() for more information.
- Parameters:
-
targets Array containing information about which forms should be stored.
void Gtk::Clipboard::set_can_store | ( | ) |
Hints that all forms of clipboard data should be stored somewhere when the application exits or when store() is called.
This value is reset when the clipboard owner changes. Where the clipboard data is stored is platform dependent, see Gdk::Display::store_clipboard() for more information.
void Gtk::Clipboard::set_image | ( | const Glib::RefPtr< Gdk::Pixbuf >& | pixbuf | ) |
Sets the contents of the clipboard to the given Gdk::Pixbuf.
GTK+ will take responsibility for responding for requests for the image, and for converting the image into the requested format.
- Parameters:
-
pixbuf A Gdk::Pixbuf.
void Gtk::Clipboard::set_text | ( | const Glib::ustring & | text | ) |
Sets the contents of the clipboard to the given UTF-8 string.
GTK+ will make a copy of the text and take responsibility for responding for requests for the text, and for converting the text into the requested format.
- Parameters:
-
text A UTF-8 string.
Glib::SignalProxy1< void,GdkEventOwnerChange* > Gtk::Clipboard::signal_owner_change | ( | ) |
- Slot Prototype:
void on_my_owner_change(GdkEventOwnerChange* event)
The signal_owner_change() signal is emitted when GTK+ receives an event that indicates that the ownership of the selection associated with clipboard has changed.
- Parameters:
-
event The GdkEventOwnerChange event.
void Gtk::Clipboard::store | ( | ) |
Stores the current clipboard data somewhere so that it will stay around after the application has quit.
SelectionData Gtk::Clipboard::wait_for_contents | ( | const Glib::ustring & | target | ) | const |
Requests the contents of the clipboard using the given target.
This function waits for the data to be received using the main loop, so events, timeouts, etc, may be dispatched during the wait.
- Parameters:
-
target The form into which the clipboard owner should convert the selection.
- Returns:
- A SelectionData object, which will be invalid if retrieving the given target failed.
Glib::RefPtr<Gdk::Pixbuf> Gtk::Clipboard::wait_for_image | ( | ) | const |
Requests the contents of the clipboard as image and converts the result to a Gdk::Pixbuf.
This function waits for the data to be received using the main loop, so events, timeouts, etc, may be dispatched during the wait.
- Returns:
- A newly-allocated Gdk::Pixbuf object which must be disposed with Glib::object_unref(), or
0
if retrieving the selection data failed. (This could happen for various reasons, in particular if the clipboard was empty or if the contents of the clipboard could not be converted into an image.).
std::string Gtk::Clipboard::wait_for_rich_text | ( | const Glib::RefPtr< TextBuffer >& | buffer, |
std::string & | format | ||
) |
std::vector<Glib::ustring> Gtk::Clipboard::wait_for_targets | ( | ) | const |
Returns a list of targets that are present on the clipboard.
This function waits for the data to be received using the main loop, so events, timeouts, etc, may be dispatched during the wait.
- Returns:
- targets: The targets.
Glib::ustring Gtk::Clipboard::wait_for_text | ( | ) | const |
Requests the contents of the clipboard as text and converts the result to UTF-8 if necessary.
This function waits for the data to be received using the main loop, so events, timeouts, etc, may be dispatched during the wait.
- Returns:
- A UTF-8 string, which is empty if retrieving the selection data failed. (This could happen for various reasons, in particular if the clipboard was empty or if the contents of the clipboard could not be converted into text form.).
std::vector<Glib::ustring> Gtk::Clipboard::wait_for_uris | ( | ) | const |
Requests the contents of the clipboard as URIs.
This function waits for the data to be received using the main loop, so events, timeouts, etc, may be dispatched during the wait.
- Returns:
- A newly-allocated
0
-terminated array of strings which must be freed with Glib::strfreev(), or0
if retrieving the selection data failed. (This could happen for various reasons, in particular if the clipboard was empty or if the contents of the clipboard could not be converted into URI form.).
bool Gtk::Clipboard::wait_is_image_available | ( | ) | const |
Test to see if there is an image available to be pasted This is done by requesting the TARGETS atom and checking if it contains any of the supported image targets.
This function waits for the data to be received using the main loop, so events, timeouts, etc, may be dispatched during the wait.
This function is a little faster than calling wait_for_image() since it doesn't need to retrieve the actual image data.
- Returns:
true
is there is an image available,false
otherwise.
bool Gtk::Clipboard::wait_is_rich_text_available | ( | const Glib::RefPtr< TextBuffer >& | buffer | ) | const |
Test to see if there is rich text available to be pasted This is done by requesting the TARGETS atom and checking if it contains any of the supported rich text targets.
This function waits for the data to be received using the main loop, so events, timeouts, etc, may be dispatched during the wait.
This function is a little faster than calling wait_for_rich_text() since it doesn't need to retrieve the actual text.
- Parameters:
-
buffer A Gtk::TextBuffer.
- Returns:
true
is there is rich text available,false
otherwise.
bool Gtk::Clipboard::wait_is_target_available | ( | const Glib::ustring & | target | ) |
Checks if a clipboard supports pasting data of a given type.
This function can be used to determine if a "Paste" menu item should be insensitive or not.
If you want to see if there's text available on the clipboard, use wait_is_text_available() instead.
- Parameters:
-
target A Gdk::Atom indicating which target to look for.
- Returns:
true
if the target is available,false
otherwise.
bool Gtk::Clipboard::wait_is_text_available | ( | ) | const |
Test to see if there is text available to be pasted This is done by requesting the TARGETS atom and checking if it contains any of the supported text targets.
This function waits for the data to be received using the main loop, so events, timeouts, etc, may be dispatched during the wait.
This function is a little faster than calling wait_for_text() since it doesn't need to retrieve the actual text.
- Returns:
true
is there is text available,false
otherwise.
bool Gtk::Clipboard::wait_is_uris_available | ( | ) | const |
Test to see if there is a list of URIs available to be pasted This is done by requesting the TARGETS atom and checking if it contains the URI targets.
This function waits for the data to be received using the main loop, so events, timeouts, etc, may be dispatched during the wait.
This function is a little faster than calling wait_for_uris() since it doesn't need to retrieve the actual URI data.
- Returns:
true
is there is an URI list available,false
otherwise.
Friends And Related Function Documentation
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related |
A Glib::wrap() method for this object.
- Parameters:
-
object The C instance. take_copy False if the result should take ownership of the C instance. True if it should take a new copy or ref.
- Returns:
- A C++ instance that wraps this C instance.
The documentation for this class was generated from the following file:
- gtkmm/clipboard.h