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/** @page gtkconv-signals GtkConv Signals

 @signals
  @signal conversation-dragging
  @signal conversation-timestamp
  @signal displaying-im-msg
  @signal displayed-im-msg
  @signal displaying-chat-msg
  @signal displayed-chat-msg
  @signal conversation-switched
  @signal conversation-hiding
  @signal conversation-displayed
 @endsignals

 <hr>

 @signaldef conversation-dragging
  @signalproto
void (*conversation_dragging)(PidginWindow *source, PidginWindow *destination);
  @endsignalproto
  @signaldesc
   Emitted when a conversation is being drag and dropped between windows.
  @param source The window where the conversation is.
  @param destination The window where the conversation will be moved to.
 @endsignaldef

 @signaldef conversation-timestamp
  @signalproto
char *(*conversation_timestamp)(PurpleConversation *conv, time_t when);
  @endsignalproto
  @signaldesc
   Emitted to allow plugins to customize the timestamp on a message.
  @param conv The conversation the message belongs to.
  @param when The time to be converted to a string.
  @return A textual representation of the time, or @c NULL to use a
          default format.
 @endsignaldef


 @signaldef displaying-im-msg
  @signalproto
gboolean (*displaying_im_msg)(PurpleAccount *account, const char *who,
                              char **message, PurpleConversation *conv,
                              PurpleMessageFlags flags);
  @endsignalproto
  @signaldesc
   Emitted just before a message is displayed in an IM conversation.
   @a message is a pointer to a string, so the plugin can replace the
   message that will be displayed. This can also be used to cancel displaying
   a message by returning @c TRUE.
  @note
   Make sure to free @a *message before you replace it!
  @param account The account.
  @param who     The name of the user.
  @param message A pointer to the message.
  @param conv    The conversation.
  @param flags   Flags for this message.
  @return @c TRUE if the message should be canceled, or @c FALSE otherwise.
 @endsignaldef

 @signaldef displayed-im-msg
  @signalproto
void (*displayed_im_msg)(PurpleAccount *account, const char *who,
                         char *message, PurpleConversation *conv,
                         PurpleMessageFlags flags);
  @endsignalproto
  @signaldesc
   Emitted after a message is displayed in an IM conversation.
  @param account The account.
  @param who     The name of the user.
  @param message The message.
  @param conv    The conversation.
  @param flags   Flags for this message.
 @endsignaldef

 @signaldef displaying-chat-msg
  @signalproto
gboolean (*displaying_chat_msg)(PurpleAccount *account, const char *who,
                                char **message, PurpleConversation *conv,
                                PurpleMessageFlags flags);
  @endsignalproto
  @signaldesc
   Emitted just before a message is displayed in a chat.
   @a message is a pointer to a string, so the plugin can replace the
   message that will be displayed. This can also be used to cancel displaying
   a message by returning @c TRUE.
  @note
   Make sure to free @a *message before you replace it!
  @param account The account the message is being displayed and sent on.
  @param who     The name of the user.
  @param message A pointer to the message that will be displayed and sent.
  @param conv    The conversation the message is being displayed and sent on.
  @param flags   Flags for this message.
  @return @c TRUE if the message should be canceled, or @c FALSE otherwise.
 @endsignaldef

 @signaldef displayed-chat-msg
  @signalproto
void (*displayed_chat_msg)(PurpleAccount *account, const char *who,
                           char *message, PurpleConversation *conv,
                           PurpleMessageFlags flags);
  @endsignalproto
  @signaldesc
   Emitted after a message is displayed in a chat conversation.
  @param account The account the message is being displayed and sent on.
  @param who     The name of the user.
  @param message A pointer to the message that will be displayed and sent.
  @param conv    The conversation the message is being displayed and sent on.
  @param flags   Flags for this message.
 @endsignaldef

 @signaldef conversation-switched
  @signalproto
void (*conversation_switched)(PurpleConversation *conv);
  @endsignalproto
  @signaldesc
   Emitted when a window switched from one conversation to another.
  @param new_conv The now active conversation.
 @endsignaldef

 @signaldef conversation-hiding
  @signalproto
void (*conversation_hiding)(PidginConversation *gtkconv);
  @endsignalproto
  @signaldesc
   Emitted immediately before an existing conversation is hidden.
  @param gtkconv  The PidginConversation
 @endsignaldef

 @signaldef conversation-displayed
  @signalproto
void (*conversation_displayed)(PidginConversation *gtkconv);
  @endsignalproto
  @signaldesc
   Emitted right after the Pidgin UI is reattached to a conversation.
  @param gtkconv  The PidginConversation
 @endsignaldef

*/
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