From 474d064c1f7e0e2e4ae800c563c2030fb9bd849f Mon Sep 17 00:00:00 2001 From: Berke Viktor Date: Sun, 28 Oct 2012 13:52:43 +0100 Subject: Convert plugins.html to Markdown --- share/doc/plugins.md | 1159 +++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 1158 insertions(+), 1 deletion(-) (limited to 'share/doc') diff --git a/share/doc/plugins.md b/share/doc/plugins.md index 9dc0c62b..8440058e 100644 --- a/share/doc/plugins.md +++ b/share/doc/plugins.md @@ -1,3 +1,1160 @@ # HexChat Plugin Interface -TODO +## Introduction +Plugins for HexChat are written in C. The interface aims to keep 100% +binary compatability. This means that if you upgrade HexChat, you will +not need to recompile your plugins, they'll continue to work. The +interface doesn't depend on any structures and offsets, so compiler +versions shouldn't have an impact either. The only real requirement of +a HexChat plugin is that it define an _xchat\_plugin\_init_ symbol. This +is your entry point function, see the example below. You should make +all your global variables and functions _static_, so that a symbol +is not exported. There is no harm in exporting these symbols, but they +are not necessary and only pollute the name-space. Plugins are compiled as shared objects +(.so files), for example: + +Most UNIX systems: +> gcc -Wl,--export-dynamic -Wall -O1 -shared -fPIC myplugin.c -o myplugin.so + +OS X: +> gcc -no-cpp-precomp -g -O2 -Wall -bundle -flat_namespace -undefined suppress -o myplugin.so myplugin.c + +See the Windows section on how to compile a plugin using Visual Studio. + +All strings passed to and from plugins are encoded in UTF-8, regardless +of locale. + +## Sample plugin + +This simple plugin auto-ops anyone who joins a channel you're in. It also +adds a new command _/AUTOOPTOGGLE_, which can be used to turn the feature ON +or OFF. Every HexChat plugin must define an _xchat\_plugin\_init_ function, this +is the normal entry point. _xchat\_plugin\_deinit_ is optional. + +
+#include "hexchat-plugin.h"
+
+#define PNAME "AutoOp"
+#define PDESC "Auto Ops anyone that joins"
+#define PVERSION "0.1"
+
+static hexchat_plugin *ph;		/* plugin handle */
+static int enable = 1;
+
+static int
+join_cb (char *word[], void *userdata)
+{
+	if (enable)
+	{
+		/* Op ANYONE who joins */
+		xchat_commandf (ph, "OP %s", word[1]);
+	}
+	/* word[1] is the nickname, as in the Settings->Advanced->TextEvents window in xchat */
+
+	return XCHAT_EAT_NONE;		/* don't eat this event, HexChat needs to see it! */
+}
+
+static int
+autooptoggle_cb (char *word[], char *word_eol[], void *userdata)
+{
+	if (!enable)
+	{
+		enable = 1;
+		xchat_print (ph, "AutoOping now enabled!\n");
+	}
+	else
+	{
+		enable = 0;
+		xchat_print (ph, "AutoOping now disabled!\n");
+	}
+
+	return XCHAT_EAT_ALL;		/* eat this command so HexChat and other plugins can't process it */
+}
+
+void
+xchat_plugin_get_info (char **name, char **desc, char **version, void **reserved)
+{
+	*name = PNAME;
+	*desc = PDESC;
+	*version = PVERSION;
+}
+
+int
+xchat_plugin_init (xchat_plugin *plugin_handle, char **plugin_name, char **plugin_desc, char **plugin_version, char *arg)
+{
+	/* we need to save this for use with any xchat_* functions */
+	ph = plugin_handle;
+
+	/* tell HexChat our info */
+	*plugin_name = PNAME;
+	*plugin_desc = PDESC;
+	*plugin_version = PVERSION;
+
+	xchat_hook_command (ph, "AutoOpToggle", XCHAT_PRI_NORM, autooptoggle_cb, "Usage: AUTOOPTOGGLE, Turns OFF/ON Auto Oping", 0);
+	xchat_hook_print (ph, "Join", XCHAT_PRI_NORM, join_cb, 0);
+
+	xchat_print (ph, "AutoOpPlugin loaded successfully!\n");
+
+	return 1;		/* return 1 for success */
+}
+
+ + +## What's _word_ and _word\_eol_? + +They are arrays of strings. They contain the parameters the user entered +for the particular command. For example, if you executed: + +
+/command NICK hi there
+
+word[1] is command
+word[2] is NICK
+word[3] is hi
+word[4] is there
+
+word_eol[1] is command NICK hi there
+word_eol[2] is NICK hi there
+word_eol[3] is hi there
+word_eol[4] is there
+
+ +These arrays are simply provided for your convenience. You are **not** allowed +to alter them. Both arrays are limited to 32 elements (index 31). _word[0]_ and +_word\_eol[0]_ are reserved and should not be read. + +## Lists and Fields +Lists of information (DCCs, Channels, User list, etc.) can be retreived +with _xchat\_list\_get_. All fields are **read only** and must be copied if +needed for a long time after calling _xchat\_list\_str_. The types of lists and fields available are: + +
+ +"channels" - list of channels, querys and their servers. +
+ + + + + + + + + + + + + + + +
NameDescriptionType
channelChannel or query namestring
chantypesChannel types e.g. "#!&"
(Added in version 2.0.9. Older versions will return NULL)		string
context(xchat_context *) pointer. Can be used with xchat_set_contextstring
flagsServer/Channel Bits:
+ + + + + + + + + + + + + +
Bit #ValueDescription
01Connected
12Connecting in Progress
24You are away
38End of MOTD (Login complete)
416Has WHOX (ircu)
532Has IDMSG (FreeNode)
664Hide Join/Part Messages
7128unused (was Color Paste in old versions)
8256Beep on Message
9512Blink Tray
101024Blink Task Bar
+
(Bits 0-5 added in 2.0.9. Bits 6-8 added in 2.6.6. Bit 9 added in 2.8.0. Bit 10 in 2.8.6)		int
idUnique server ID
(Added in version 2.0.8. Older versions will return -1)		int
lagLag in milliseconds
(Added in version 2.6.8. Older versions will return -1)		int
maxmodesMaximum modes per line
(Added in version 2.0.9. Older versions will return -1)		int
networkNetwork name to which this channel belongs
(Added in version 2.0.2. Older versions will return NULL)		string
nickprefixesNickname prefixes e.g. "@+"
(Added in version 2.0.9. Older versions will return NULL)		string
nickmodesNickname mode chars e.g. "ov"
(Added in version 2.0.9. Older versions will return NULL)		string
queueNumber of bytes in the send-queue
(Added in version 2.6.8. Older versions will return -1)		int
serverServer name to which this channel belongsstring
typeType of context this is: 1-Server 2-Channel 3-Dialog
(Added in version 2.0.2. Older versions will return -1)		int
usersNumber of users in this channel
(Added in version 2.0.8. Older versions will return -1)		int
+
+ +"dcc" - list of DCC file transfers. Fields: +
+ + + + + + + + + + + + + + + +
NameDescriptionType
address32Address of the remote user (ipv4 address)int
cpsBytes per second (speed)int
destfileDestination full pathnamestring
fileFile namestring
nickNickname of person who the file is from/tostring
portTCP port numberint
posBytes sent/receivedint
poshighBytes sent/received, high order 32 bitsint
resumePoint at which this file was resumed (or zero if it was not resumed)int
resumehighPoint at which this file was resumed, high order 32 bitsint
sizeFile size in bytes, low order 32 bits (cast it to unsigned)int
sizehighFile size in bytes, high order 32 bitsint
statusDCC Status: 0-Queued 1-Active 2-Failed 3-Done 4-Connecting 5-Abortedint
typeDCC Type: 0-Send 1-Receive 2-ChatRecv 3-ChatSendint
+
+ +"ignore" - current ignore list. +
+ + + +
NameDescriptionType
maskIgnore mask. .e.g: *!*@*.aol.comstring
flagsBit field of flags. 0=Private 1=Notice 2=Channel 3=Ctcp
+4=Invite 5=UnIgnore 6=NoSave 7=DCC		int
+
+ +"notify" - list of people on notify. +
+ + + + + + + +
NameDescriptionType
networksNetworks to which this nick applies. Comma separated. May be NULL. +
(Added in version 2.6.8)		string
nickNicknamestring
flagsBit field of flags. 0=Is online.int
onTime when user came online.time_t
offTime when user went offline.time_t
seenTime when user the user was last verified still online.time_t
+The entire "notify" list was added in xchat 2.0.8. Fields are +only valid for the context when xchat_list_get() was called +(i.e. you get information about the user ON THAT ONE SERVER ONLY). You +may cycle through the "channels" list to find notify information for every +server. +
+ +"users" - list of users in the current channel. +
+ + + + + + + + +
NameDescriptionType
awayAway status (boolean)
(Added in version 2.0.6. Older versions will return -1)		int
lasttalkLast time the user was seen talking
(Added in version 2.4.2. Older versions will return -1)		time_t
nickNick namestring
hostHost name in the form: user@host (or NULL if not known).string
prefixPrefix character, .e.g: @ or +. Points to a single char.string
realnameReal name or NULL
(Added in version 2.8.6)		string
selectedSelected status in the user list, only works for retrieving the user list of the focused tab
(Added in version 2.6.1. Older versions will return -1)		int
+
+ +
+ +Example: + +
+	list = xchat_list_get (ph, "dcc");
+
+	if (list)
+	{
+		xchat_print (ph, "--- DCC LIST ------------------\nFile  To/From   KB/s   Position\n");
+
+		while (xchat_list_next (ph, list))
+		{
+			xchat_printf (ph, "%6s %10s %.2f  %d\n",
+				xchat_list_str (ph, list, "file"),
+				xchat_list_str (ph, list, "nick"),
+				xchat_list_int (ph, list, "cps") / 1024,
+				xchat_list_int (ph, list, "pos"));
+		}
+
+		xchat_list_free (ph, list);
+	}
+
+ +## Plugins on Windows (Win32) + +Yes, it can be done. All you need is Visual Studio setup as explained in [Building](http://www.hexchat.org/developers/building). Your best bet is to use an existing plugin in the HexChat solution as a starting point. You should have the following files: + + +* [hexchat-plugin.h](https://github.com/hexchat/hexchat/blob/master/plugins/hexchat-plugin.h) - main plugin header +* plugin.c - Your plugin, you need to write this one :) +* plugin.def - A simple text file containing the following: + +
+	EXPORTS
+	xchat_plugin_init
+	xchat_plugin_deinit
+	xchat_plugin_get_info
+
+ +Leave out _xchat\_plugin\_deinit_ if you don't intend to define that +function. Then compile your plugin in Visual Studio as usual. + +**Caveat:** plugins compiled on Win32 **must** have a +global variable called _ph_, which is the _plugin\_handle_, much like +in the sample plugin above. + +## Controlling the GUI + +A simple way to perform basic GUI functions is to use the _/GUI_ command. +You can execute this command through the input box, or by calling _xchat\_command (ph, "GUI .....");_. + +
+ + + + + + + + + + + +
GUI ATTACHSame function as "Attach Window" in the HexChat menu (new for 2.6.2).
GUI DETACHSame function as "Detach Tab" in the HexChat menu (new for 2.6.2).
GUI APPLYSimilar to clicking OK in the settings window. Execute this after /SET to activate GUI changes (new for 2.8.0)
GUI COLOR nChange the tab color of the current context, where n is a number from 0 to 3.
GUI FOCUSFocus the current window or tab.
GUI FLASHFlash the taskbar button. It will flash only if the window isn't focused and will stop when it is focused by the user.
GUI HIDEHide the main HexChat window completely (this is used by the Systray plugin).
GUI ICONIFYIconify (minimize to taskbar) the current HexChat window.
GUI MSGBOX textDisplays a asynchronous message box with your text (new for 2.4.5).
GUI SHOWShow the main HexChat window (if currently hidden).
+
+ +You can add your own items to the menu bar. The menu command has this syntax: +
+	MENU [-eX] [-i<ICONFILE>] [-k<mod>,<key>] [-m] [-pX] [-rX,group] [-tX] {ADD|DEL} <path> [command] [unselect command]
+
+ +For example: + +
+	MENU -p5 ADD FServe
+	MENU ADD "FServe/Show File List" "fs list"
+	MENU ADD FServe/-
+	MENU -k4,101 -t1 ADD "FServe/Enabled" "fs on" "fs off"
+	MENU -e0 ADD "FServe/Do Something" "fs action"
+
+ +In the example above, it would be recommended to execute _MENU DEL FServe_ inside your _xchat\_plugin\_deinit_ function. The special item with name "-" will add a separator line. + +Parameters and flags: + +
+ + + + + + + + +
-eXSet enable flag to X. -e0 for disable, -e1 for enable. This lets you create a disabled (shaded) item.
-iFILEUse an icon filename FILE (new for 2.8.0). Not supported for toggles or radio items.
-k<mod>,<key>Specify a keyboard shortcut. "mod" is the modifier which is a bitwise OR of: 1-SHIFT 4-CTRL 8-ALT in decimal. "key" is the key value in decimal, e.g. -k5,101 would specify SHIFT-CTRL-E.
-mSpecify that this label should be treated as Pango Markup language. Since forward slash ("/") is already used in menu paths, you should replace closing tags with an ASCII 003 instead e.g.: xchat_command(ph, "MENU -m ADD \"<b>Bold Menu<\003b>\""); (new for 2.6.6).
-pXSpecify a menu item's position number. e.g. -p5 will cause the item to be inserted in the 5th place. New for 2.8.0: If the position is a negative number, it will be used as an offset from the bottom/right-most item.
-rX,groupSpecify a radio menu item, with initial state X and a group name (new for 2.8.0). The group name should be the exact label of another menu item (without the path) that this item will be grouped with. For radio items, only a select command will be executed (no unselect command).
-tXSpecify a toggle menu item with an initial state. -t0 for an "unticked" item and -t1 for a "ticked" item.
+
+ +If you want to change an item's toggle state or enabled flag, +just _ADD_ an item with exactly the same name and command and specify the _-tX -eX_ parameters you need. + +It's also possible to add items to HexChat's existing menus, for example: + +
+	MENU ADD "Settings/Sub Menu"
+	MENU -t0 ADD "Settings/Sub Menu/My Setting" myseton mysetoff
+
+ +However, internal names and layouts of HexChat's menu may change in the future, so use at own risk. + +Here is an example of Radio items: + +
+	MENU ADD "Language"
+	MENU -r1,"English" ADD "Language/English" cmd1
+	MENU -r0,"English" ADD "Language/Spanish" cmd2
+	MENU -r0,"English" ADD "Language/German" cmd3
+
+ +You can also change menus other than the main one (i.e popup menus). Currently they are: + +
+ + + + + + + +
Root NameMenu
$TABTab menu (right click a channel/query tab or treeview row)
$TRAYSystem Tray menu
$URLURL link menu
$NICKUserlist nick-name popup menu
$CHANMenu when clicking a channel in the text area (since 2.8.4)
+
+ +Example: + +
+	MENU -p0 ADD "$TAB/Cycle Channel" cycle
+
+ +You can manipulate HexChat's system tray icon using the _/TRAY_ command: + +
+	Usage:
+	TRAY -f <timeout> <file1> [<file2>] Flash tray between two icons. Leave off file2 to use default HexChat icon.
+	TRAY -f <filename>                  Set tray to a fixed icon.
+	TRAY -i <number>                    Flash tray with an internal icon.
+	TRAY -t <text>                      Set the tray tooltip.
+	TRAY -b <title> <text>              Set the tray balloon.
+
+ +Icon numbers: + + * 2: Message + * 5: Highlight + * 8: Private + * 11:File + +For tray balloons on Linux, you'll need libnotify. + +Filenames can be _ICO_ or _PNG_ format. _PNG_ format is supported on Linux/BSD and Windows XP. Set a timeout of -1 to use HexChat's default. + +## Handling UTF-8/Unicode strings + +The HexChat plugin API specifies that strings passed to and from HexChat must be encoded in UTF-8. + +What does this mean for the plugin programmer? You just have to be a little careful when +passing strings obtained from IRC to system calls. For example, if you're writing a file-server +bot, someone might message you a filename. Can you pass this filename directly to open()? Maybe! +If you're lazy... The correct thing to do is to convert the string to "system locale encoding", +otherwise your plugin will fail on non-ascii characters. + +Here are examples on how to do this conversion on Unix and Windows. In this example, someone will +CTCP you the message "SHOWFILE <filename>". + +
+static int
+ctcp_cb (char *word[], char *word_eol[], void *userdata)
+{
+	if(strcmp(word[1], "SHOWFILE") == 0)
+	{
+		get_file_name (nick, word[2]);
+	}
+
+	return XCHAT_EAT_XCHAT;
+}
+
+static void
+get_file_name (char *nick, char *fname)
+{
+	char buf[256];
+	FILE *fp;
+
+	/* the fname is in UTF-8, because it came from the HexChat API */
+
+#ifdef _WIN32
+
+	wchar_t wide_name[MAX_PATH];
+
+	/* convert UTF-8 to WIDECHARs (aka UTF-16LE) */
+	if (MultiByteToWideChar (CP_UTF8, 0, fname, -1, wide_name, MAX_PATH) < 1)
+	{
+		return;
+	}
+
+	/* now we have WIDECHARs, so we can _wopen() or CreateFileW(). */
+	/* _wfopen actually requires NT4, Win2000, XP or newer. */
+	fp = _wfopen (wide_name, "r");
+
+#else
+
+	char *loc_name;
+
+	/* convert UTF-8 to System Encoding */
+	loc_name = g_filename_from_utf8 (fname, -1, 0, 0, 0);
+	if(!loc_name)
+	{
+		return;
+	}
+
+	/* now open using the system's encoding */
+	fp = fopen (loc_name, "r");
+	g_free (loc_name);
+
+#endif
+
+	if (fp)
+	{
+		while (fgets (buf, sizeof (buf), fp))
+		{
+			/* send every line to the user that requested it */
+			xchat_commandf (ph, "QUOTE NOTICE %s :%s", nick, buf);
+		}
+		fclose (fp);
+	}
+}
+
+ +## Functions + +*** + +### xchat\_hook\_command () + +**Prototype:** xchat\_hook \*xchat\_hook\_command (xchat\_plugin \*ph, const char \*name, int pri, xchat\_cmd\_cb \*callb, const char \*help\_text, void \*userdata); + +**Description:** Adds a new _/command_. This allows your program to +handle commands entered at the input box. To capture text without a "/" at +the start (non-commands), you may hook a special name of "". i.e _xchat\_hook\_command (ph, "", ...);_. + +Commands hooked that begin with a period ('.') will be hidden in _/HELP_ and _/HELP -l_. + +**Arguments:** + + * **ph:** Plugin handle (as given to _xchat\_plugin\_init ()_). + * **name:** Name of the command (without the forward slash). + * **pri:** Priority of this command. Use _XCHAT\_PRI\_NORM_. + * **callb:** Callback function. This will be called when the user executes the given command name. + * **help\_text:** String of text to display when the user executes _/HELP_ for this command. May be NULL if you're lazy. + * **userdata:** Pointer passed to the callback function. + +**Returns:** Pointer to the hook. Can be passed to _xchat\_unhook ()_. + +**Example:** + +
+static int
+onotice_cb (char *word[], char *word_eol[], void *userdata)
+{
+	if (word_eol[2][0] == 0)
+	{
+		xchat_printf (ph, "Second arg must be the message!\n");
+		return XCHAT_EAT_ALL;
+	}
+
+	xchat_commandf (ph, "NOTICE @%s :%s", xchat_get_info (ph, "channel"), word_eol[2]);
+	return XCHAT_EAT_ALL;
+}
+
+xchat_hook_command (ph, "ONOTICE", XCHAT_PRI_NORM, onotice_cb, "Usage: ONOTICE <message> Sends a notice to all ops", NULL);
+
+ +*** + +### xchat\_hook\_fd () + +**Prototype:** xchat\_hook \*xchat\_hook\_fd (xchat\_plugin \*ph, int fd, int flags, xchat\_fd\_cb \*callb, void \*userdata); + +**Description:** Hooks a socket or file descriptor. WIN32: Passing a pipe from MSVCR71, MSVCR80 or other variations is not supported at this time. +**Arguments:** + + * **ph:** Plugin handle (as given to _xchat\_plugin\_init ()_). + * **fd:** The file descriptor or socket. + * **flags:** One or more of _XCHAT\_FD\_READ_, _XCHAT\_FD\_WRITE_, _XCHAT\_FD\_EXCEPTION_, _XCHAT\_FD\_NOTSOCKET_. Use bitwise OR to combine them. _XCHAT\_FD\_NOTSOCKET_ tells HexChat that the provided _fd__ is not a socket, but an "MSVCRT.DLL" pipe. + * **callb:** Callback function. This will be called when the socket is available for reading/writing or exception (depending on your chosen _flags_) + * **userdata:** Pointer passed to the callback function. + +**Returns:** Pointer to the hook. Can be passed to _xchat\_unhook ()_. + +*** + +### xchat\_hook\_print () + +**Prototype:** xchat\_hook \*xchat\_hook\_print (xchat\_plugin \*ph, const char \*name, int pri, xchat\_print\_cb \*callb, void \*userdata); + +**Description:** Registers a function to trap any print events. +The event names may be any available in the "Advanced > Text Events" window. +There are also some extra "special" events you may hook using this function. +Currently they are: + + * "Open Context": Called when a new xchat\_context is created. + * "Close Context": Called when a xchat\_context pointer is closed. + * "Focus Tab": Called when a tab is brought to front. + * "Focus Window": Called a toplevel window is focused, or the main tab-window is focused by the window manager. + * "DCC Chat Text": Called when some text from a DCC Chat arrives. It provides these elements in the _word[]_ array: +
+	word[1] Address
+	word[2] Port
+	word[3] Nick
+	word[4] The Message
+
+ * "Key Press": Called when some keys are pressed in the input box. It provides these elements in the _word[]_ array: +
+	word[1] Key Value
+	word[2] State Bitfield (shift, capslock, alt)
+	word[3] String version of the key
+	word[4] Length of the string (may be 0 for unprintable keys)
+
+ +**Arguments:** + + * **ph:** Plugin handle (as given to _xchat\_plugin\_init ()_). + * **name:** Name of the print event (as in _Edit Event Texts_ window). + * **pri:** Priority of this command. Use XCHAT\_PRI\_NORM. + * **callb:** Callback function. This will be called when this event name is printed. + * **userdata:** Pointer passed to the callback function. + +**Returns:** Pointer to the hook. Can be passed to _xchat\_unhook ()_. + +**Example:** + +
+static int
+youpart_cb (char *word[], void *userdata)
+{
+	xchat_printf (ph, "You have left channel %s\n", word[3]);
+	return XCHAT_EAT_XCHAT;		/* dont let HexChat do its normal printing */
+}
+
+xchat_hook_print (ph, "You Part", XCHAT_PRI_NORM, youpart_cb, NULL);
+
+ +*** + +### xchat\_hook\_server () + +**Prototype:** xchat\_hook \*xchat\_hook\_server (xchat\_plugin \*ph, const char \*name, int pri, xchat\_serv\_cb \*callb, void \*userdata); + +**Description:** Registers a function to be called when a certain server event occurs. You can +use this to trap _PRIVMSG_, _NOTICE_, _PART_, a server numeric, etc. If you want to +hook every line that comes from the IRC server, you may use the special name of _RAW LINE_. + +**Arguments:** + + * **ph:** Plugin handle (as given to _xchat\_plugin\_init ()_). + * **name:** Name of the server event. + * **pri:** Priority of this command. Use XCHAT\_PRI\_NORM. + * **callb:** Callback function. This will be called when this event is received from the server. + * **userdata:** Pointer passed to the callback function. + +**Returns:** Pointer to the hook. Can be passed to _xchat\_unhook_. + +**Example:** +
+static int
+kick_cb (char *word[], char *word_eol[], void *userdata)
+{
+	xchat_printf (ph, "%s was kicked from %s (reason=%s)\n", word[4], word[3], word_eol[5]);
+	return XCHAT_EAT_NONE;		/* don't eat this event, let other plugins and HexChat see it too */
+}
+
+xchat_hook_server (ph, "KICK", XCHAT_PRI_NORM, kick_cb, NULL);
+
+ +*** + +### xchat\_hook\_timer () + +**Prototype:** xchat\_hook \*xchat\_hook\_timer (xchat\_plugin \*ph, int timeout, xchat\_timer\_cb \*callb, void \*userdata); + +**Description:** Registers a function to be called every "timeout" milliseconds. + +**Arguments:** + + * **ph:** Plugin handle (as given to _xchat\_plugin\_init ()_). + * **timeout:** Timeout in milliseconds (1000 is 1 second). + * **callb:** Callback function. This will be called every "timeout" milliseconds. + * **userdata:** Pointer passed to the callback function. + +**Returns:** Pointer to the hook. Can be passed to xchat_unhook. + +**Example:** + +
+static xchat_hook *myhook;
+
+static int
+stop_cb (char *word[], char *word_eol[], void *userdata)
+{
+	if (myhook != NULL)
+	{
+		xchat_unhook (ph, myhook);
+		myhook = NULL;
+		xchat_print (ph, "Timeout removed!\n");
+	}
+
+	return XCHAT_EAT_ALL;
+}
+
+static int
+timeout_cb (void *userdata)
+{
+	xchat_print (ph, "Annoying message every 5 seconds! Type /STOP to stop it.\n");
+	return 1;		/* return 1 to keep the timeout going */
+}
+
+myhook = xchat_hook_timer (ph, 5000, timeout_cb, NULL);
+xchat_hook_command (ph, "STOP", XCHAT_PRI_NORM, stop_cb, NULL, NULL);
+
+ +*** + +### xchat\_unhook () + +**Prototype:** void \*xchat\_unhook (xchat\_plugin \*ph, xchat\_hook \*hook); + +**Description:** Unhooks any hook registered with xchat\_hook\_print/server/timer/command. When plugins are unloaded, all of its hooks are automatically removed, so you don't need to call this within your xchat\_plugin\_deinit () function. + +**Arguments:** + + * **ph:** Plugin handle (as given to _xchat\_plugin\_init ()_). + * **hook:** Pointer to the hook, as returned by xchat\_hook\_*. + +**Returns:** The userdata you originally gave to xchat\_hook\_*. + +*** + +### xchat\_command () + +**Prototype:** void xchat\_command (xchat\_plugin \*ph, const char \*command); + +**Description:** Executes a command as if it were typed in HexChat's input box. + +**Arguments:** + + * **ph:** Plugin handle (as given to _xchat\_plugin\_init ()_). + * **command:** Command to execute, without the forward slash "/". + +*** + +### xchat\_commandf () + +**Prototype:** void xchat\_commandf (xchat\_plugin \*ph, const char \*format, ...); + +**Description:** Executes a command as if it were typed in HexChat's input box and provides string formatting like _printf ()_. + +**Arguments:** + + * **ph:** Plugin handle (as given to _xchat\_plugin\_init ()_). + * **format:** The format string. + +*** + +### xchat\_print () + +**Prototype:** void xchat\_print (xchat\_plugin \*ph, const char \*text); + +**Description:** Prints some text to the current tab/window. + +**Arguments:** + + * **ph:** Plugin handle (as given to _xchat\_plugin\_init ()_). + * **text:** Text to print. May contain mIRC color codes. + +*** + +### xchat\_printf () + +**Prototype:** void xchat\_printf (xchat\_plugin \*ph, const char \*format, ...); + +**Description:** Prints some text to the current tab/window and provides formatting like _printf ()_. + +**Arguments:** + + * **ph:** Plugin handle (as given to _xchat\_plugin\_init ()_). + * **format:** The format string. + +*** + +### xchat\_emit\_print () +**Prototype:** int xchat\_emit\_print (xchat\_plugin \*ph, const char \*event\_name, ...); + +**Description:** Generates a print event. This can be any event found in the Preferences > Advanced > Text Events window. The vararg parameter list **must** always be NULL terminated. Special care should be taken when calling this function inside a print callback (from xchat\_hook\_print), as not to cause endless recursion. + +**Arguments:** + + * **ph:** Plugin handle (as given to _xchat\_plugin\_init ()_). + * **event_name:** Text event to print. + +**Returns:** + + * 1: Success. + * 0: Failure. + +**Example:** + +
+xchat_emit_print (ph, "Channel Message", "John", "Hi there", "@", NULL);
+
+ +*** + +### xchat\_send\_modes () + +**Prototype:** void xchat\_send\_modes (xchat\_plugin \*ph, const char \*targets[], int ntargets, int modes_per_line, char sign, char mode) + +**Description:** Sends a number of channel mode changes to the current channel. For example, you can Op a whole +group of people in one go. It may send multiple MODE lines if the request doesn't fit on one. Pass 0 for +_modes\_per\_line_ to use the current server's maximum possible. This function should only be called while +in a channel context. + +**Arguments:** + + * **ph:** Plugin handle (as given to _xchat\_plugin\_init ()_). + * **targets:** Array of targets (strings). The names of people whom the action will be performed on. + * **ntargets:** Number of elements in the array given. + * **modes_per_line:** Maximum modes to send per line. + * **sign:** Mode sign, '-' or '+'. + * **mode:** Mode char, e.g. 'o' for Ops. + +**Example:** (Ops the three names given) + +
+const char *names_to_Op[] = {"John", "Jack", "Jill"};
+xchat_send_modes (ph, names_to_Op, 3, 0, '+', 'o');
+
+ +*** + +### xchat\_find\_context () + +**Prototype:** xchat\_context \*xchat\_find\_context (xchat\_plugin \*ph, const char \*servname, const char \*channel); + +**Description:** Finds a context based on a channel and servername. If _servname_ is NULL, it finds any channel (or query) by the given name. If _channel_ is NULL, it finds the front-most tab/window of the given _servname_. If NULL is given for both arguments, the currently focused tab/window will be returned. + +Changed in 2.6.1. If _servname_ is NULL, it finds the channel (or query) by the given name in the same server group as the current context. If that doesn't exists then find any by the given name. + +**Arguments:** + + * **ph:** Plugin handle (as given to _xchat\_plugin\_init ()_). + * **servname:** Server name or NULL. + * **channel:** Channel name or NULL. + +**Returns:** Context pointer (for use with _xchat\_set\_context_) or NULL. + +*** + +### xchat\_get\_context () + +**Prototype:** xchat\_context \*xchat\_get\_context (xchat\_plugin \*ph); + +**Description:** Returns the current context for your plugin. You can use this later with _xchat\_set\_context ()_. + +**Arguments:** + + * **ph:** Plugin handle (as given to _xchat\_plugin\_init ()_). + +**Returns:** Context pointer (for use with _xchat\_set\_context_). + +*** + +### xchat\_get\_info () + +**Prototype:** const char \*xchat\_get\_info (xchat\_plugin \*ph, const char \*id); + +**Description:** Returns information based on your current context. + +**Arguments:** + + * **ph:** Plugin handle (as given to _xchat\_plugin\_init ()_). + * **id:** ID of the information you want. Currently supported IDs are (case sensitive): + +
+ + + + + + + + + + + + + + + + + + + + +
awayaway reason or NULL if you are not away.
channelcurrent channel name.
charsetcharacter-set used in the current context (since 2.4.2).
event_text <name>text event format string for name (since 2.8.2).
gtkwin_ptr(GtkWindow *) (since 2.8.9).
hostreal hostname of the server you connected to.
inputboxthe input-box contents, what the user has typed (since 2.4.1).
libdirfslibrary directory. e.g. /usr/lib/xchat. The same directory used for auto-loading plugins (since 2.4.0).This string isn't necessarily UTF-8, but local file system encoding.
modeschannel modes, if known, or NULL (since 2.8.1).
networkcurrent network name or NULL.
nickyour current nick name.
nickservnickserv password for this network or NULL (since 2.4.3).
servercurrent server name (what the server claims to be). NULL if you are not connected.
topiccurrent channel topic.
versionxchat version number.
win_ptrnative window pointer. Unix: (GtkWindow *) Win32: HWND (since 2.6.0).
win_statuswindow status: "active", "hidden" or "normal" (since 2.0.9).
xchatdirxchat config directory, e.g.: /home/user/.xchat2 This string is encoded in UTF-8, which means you _should_ convert it to "locale" encoding before using functions like open() or OpenFile(). For best Unicode support on Linux, convert this string using g_filename_from_utf8 and on Windows convert this string to UTF-16LE (wide) and use OpenFileW() etc.
xchatdirfsxchat config directory, e.g.: /home/user/.xchat2 (since 2.0.9).This string is encoded in local file system encoding, making it ideal for direct use with functions like open() or OpenFile(). For real Unicode support on Windows, it's best not to use HexChatdirfs, but HexChatdir instead.
+
+ +**Returns:** A string of the requested information, or NULL. This string must +not be freed and must be copied if needed after the call to _xchat\_get\_info ()_. + +*** + +### xchat\_get\_prefs () + +**Prototype:** int xchat\_get\_prefs (xchat\_plugin \*ph, const char \*name, const char \*\*string, int \*integer); + +**Description:** Provides HexChat's setting information (that which is available through the _/SET_ command). +A few extra bits of information are available that don't appear in the _/SET_ list, currently they are: + + * **state_cursor:** Current input box cursor position (characters, not bytes). + * **id:** Unique server id + +**Arguments:** + + * **ph:** Plugin handle (as given to _xchat\_plugin\_init ()_). + * **name:** Setting name required. + * **string:** Pointer-pointer which to set. + * **integer:** Pointer to an integer to set, if setting is a boolean or integer type. + +**Returns:** + + * 0: Failed. + * 1: Returned a string. + * 2: Returned an integer. + * 3: Returned a boolean. + +**Example:** + +
+{
+	int i;
+	const char *str;
+
+	if (xchat_get_prefs (ph, "irc_nick1", &str, &i) == 1)
+	{
+		xchat_printf (ph, "Current nickname setting: %s\n", str);
+	}
+}
+
+ +*** + +### xchat\_set\_context () + +**Prototype:** int xchat\_set\_context (xchat\_plugin \*ph, xchat\_context \*ctx); + +**Description:** Changes your current context to the one given. + +**Arguments:** + + * **ph:** Plugin handle (as given to _xchat\_plugin\_init ()_). + * **ctx:** Context to change to (obtained with _xchat\_get\_context ()_ or _xchat\_find\_context ()_). + +**Returns:** + + * 1: Success. + * 0: Failure. + +*** + +### xchat\_nickcmp () + +**Prototype:** int xchat\_nickcmp (xchat\_plugin \*ph, const char \*s1, const char \*s2); + +**Description:** Performs a nick name comparision, based on the current server connection. This might be an RFC1459 compliant string compare, or plain ascii (in the case of DALNet). Use this to compare channels and nicknames. The function works the same way as _strcasecmp ()_. + +**Arguments:** + + * **ph:** Plugin handle (as given to _xchat\_plugin\_init ()_). + * **s1:** String to compare. + * **s2:** String to compare _s1_ to. + +**Quote from RFC1459:** +>Because of IRC's scandanavian origin, the characters {}| are +considered to be the lower case equivalents of the characters []\, +respectively. This is a critical issue when determining the +equivalence of two nicknames. + +**Returns:** An integer less than, equal to, or greater than zero if _s1_ is found, respectively, to be less than, to match, or be greater than _s2_. + +*** + +### xchat\_strip () + +**Prototype:** char \*xchat\_strip (xchat\_plugin \*ph, const char \*str, int len, int flags); + +**Description:** Strips mIRC color codes and/or text attributes (bold, underlined etc) from the given string and returns a newly allocated string. + +**Arguments:** + + * **ph:** Plugin handle (as given to _xchat\_plugin\_init ()_). + * **str:** String to strip. + * **len:** Length of the string (or -1 for NULL terminated). + * **flags:** Bit-field of flags: + * 0: Strip mIRC colors. + * 1: Strip text attributes. + +**Returns:** A newly allocated string or NULL for failure. You must free this string with _xchat\_free ()_. + +**Example:** + +
+{
+	char *new_text;
+
+	/* strip both colors and attributes by using the 0 and 1 bits (1 BITWISE-OR 2) */
+	new_text = xchat_strip (ph, "\00312Blue\003 \002Bold!\002", -1, 1 | 2);
+
+	if (new_text)
+	{
+		/* new_text should now contain only "Blue Bold!" */
+		xchat_printf (ph, "%s\n", new_text);
+		xchat_free (ph, new_text);
+	}
+}
+
+ +*** + +### xchat\_free () + +**Prototype:** void xchat\_free (xchat\_plugin \*ph, void \*ptr); + +**Description:** Frees a string returned by _xchat\_*_ functions. Currently only used to free strings from _xchat\_strip ()_. + +**Arguments:** + + * **ph:** Plugin handle (as given to _xchat\_plugin\_init ()_). + * **ptr:** Pointer to free. + +*** + +### xchat\_pluginpref\_set\_str () + +**Prototype:** int xchat\_pluginpref\_set\_str (xchat\_plugin \*ph, const char \*var, const char \*value); + +**Description:** Saves a plugin-specific setting with string value to a plugin-specific config file. + +**Arguments:** + + * **ph:** Plugin handle (as given to _xchat\_plugin\_init ()_). + * **var:** Name of the setting to save. + * **value:** String value of the the setting. + +**Returns:** + + * 1: Success. + * 0: Failure. + +**Example:** + +
+int
+xchat_plugin_init (xchat_plugin *plugin_handle, char **plugin_name, char **plugin_desc, char **plugin_version, char *arg)
+{
+	ph = plugin_handle;
+	*plugin_name = "Tester Thingie";
+	*plugin_desc = "Testing stuff";
+	*plugin_version = "1.0";
+
+	xchat_pluginpref_set_str (ph, "myvar1", "I want to save this string!");
+	xchat_pluginpref_set_str (ph, "myvar2", "This is important, too.");
+
+	return 1;       /* return 1 for success */
+}
+
+ +In the example above, the settings will be saved to the plugin_tester_thingie.conf file, and its content will be: +>myvar1 = I want to save this string! +myvar2 = This is important, too. + +You should never need to edit this file manually. + +*** + +### xchat\_pluginpref\_get\_str () +**Prototype:** int xchat_pluginpref_get_str (xchat\_plugin \*ph, const char \*var, char \*dest); + +**Description:** Loads a plugin-specific setting with string value from a plugin-specific config file. + +**Arguments:** + + * **ph:** Plugin handle (as given to _xchat\_plugin\_init ()_). + * **var:** Name of the setting to load. + * **dest:** Array to save the loaded setting's string value to. + +**Returns:** + + * 1: Success. + * 0: Failure. + +*** + +### xchat\_pluginpref\_set\_int () + +**Prototype:** int xchat\_pluginpref\_set\_int (xchat\_plugin \*ph, const char \*var, int value); + +**Description:** Saves a plugin-specific setting with decimal value to a plugin-specific config file. + +**Arguments:** + + * **ph:** Plugin handle (as given to _xchat\_plugin\_init ()_). + * **var:** Name of the setting to save. + * **value:** Decimal value of the the setting. + +**Returns:** + + * 1: Success. + * 0: Failure. + +**Example:** + +
+static int
+saveint_cb (char *word[], char *word_eol[], void *user_data)
+{
+	int buffer = atoi (word[2]);
+
+	if (buffer > 0 && buffer < INT_MAX)
+	{
+		if (xchat_pluginpref_set_int (ph, "myint1", buffer))
+		{
+			xchat_printf (ph, "Setting successfully saved!\n");
+		}
+		else
+		{
+			xchat_printf (ph, "Error while saving!\n");
+		}
+	}
+	else
+	{
+		xchat_printf (ph, "Invalid input!\n");
+	}
+
+	return XCHAT_EAT_XCHAT;
+}
+
+ +You only need such complex checks if you're saving user input, which can be non-numeric. + +*** + +### xchat\_pluginpref\_get\_int () + +**Prototype:** int xchat\_pluginpref\_get\_int (xchat\_plugin \*ph, const char \*var); + +**Description:** Loads a plugin-specific setting with decimal value from a plugin-specific config file. + +**Arguments:** + + * **ph:** Plugin handle (as given to _xchat\_plugin\_init ()_). + * **var:** Name of the setting to load. + +**Returns:** The decimal value of the requested setting upon success, -1 for failure. + +*** + +### xchat\_pluginpref\_delete () + +**Prototype:** int xchat\_pluginpref\_delete (xchat\_plugin \*ph, const char \*var); + +**Description:** Deletes a plugin-specific setting from a plugin-specific config file. + +**Arguments:** + + * **ph:** Plugin handle (as given to _xchat\_plugin\_init ()_). + * **var:** Name of the setting to delete. + +**Returns:** + + * 1: Success. + * 0: Failure. + +If the given setting didn't exist, it also returns 1, so 1 only indicates that the setting won't exist after the call. + +*** + +### xchat\_pluginpref\_list () + +**Prototype:** int xchat\_pluginpref\_list (xchat\_plugin \*ph, char \*dest); + +**Description:** Builds a comma-separated list of the currently saved settings from a plugin-specific config file. + +**Arguments:** + + * **ph:** Plugin handle (as given to _xchat\_plugin\_init ()_). + * **dest:** Array to save the list to. + +**Returns:** + + * 1: Success. + * 0: Failure (nonexistent, empty or inaccessible config file). + +**Example:** +
+static void
+list_settings ()
+{
+	char list[512];
+	char buffer[512];
+	char *token;
+
+	xchat_pluginpref_list (ph, list);
+	xchat_printf (ph, "Current Settings:\n");
+	token = strtok (list, ",");
+
+	while (token != NULL)
+	{
+		xchat_pluginpref_get_str (ph, token, buffer);
+		xchat_printf (ph, "%s: %s\n", token, buffer);
+		token = strtok (NULL, ",");
+	}
+}
+
+ +In the example above we query the list of currently stored settings, then print them one by one with their respective values. We always use _xchat\_pluginpref\_get\_str ()_, and that's because we can read an integer as string (but not vice versa). -- cgit 1.4.1