WoW:User defined functions: Difference between revisions

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{{wowapi}}
{{userfunc}}
These are cut-and-paste functions that you can use in your addons, submitted by WoWWiki contributors.  See also [[UI Snippets]].


These are cut-and-paste functions that you can use in your addons, submitted by WoWWiki contributors.
Additional snippets and useful ideas:<br />
&rarr; [[AddOn defined functions]]<br />
&rarr; [[User defined macros]]<br />
&rarr; [[User defined modules]]<br />
&rarr; [[User defined snippets]]<br />


== API ==
 
== Reference ==
The following functions aim at extending the information WoW API provides; some are provided by specialized addons rather than being copy/pastable.
The following functions aim at extending the information WoW API provides; some are provided by specialized addons rather than being copy/pastable.
:[[GetPlayerBearing]]() - Returns the player's current facing bearing.
:[[GetSellValue]](item) - Returns an item's merchant sell price.


== Arguments & Returns ==
=== API ===
: [[setArgs]](myTable, "name", ...) - remember list of arguments to use for a callback
:{{id|USERAPI|allAreType}}(type,...) - Returns true if all the additional parameters are of the type specified.
: [[getArgs]](myTable, "name", ...) - retreive stored list of arguments, plus optional extras
 
: [[GetReturnValues|GetReturnValues]](order, functionCall) - Get the return values from ''functionCall'' in any ''order'' you want.
=== Arguments & Returns ===
:{{id|USERAPI|setArgs}}(myTable, "name", ...) - remember list of arguments to use for a callback
:{{id|USERAPI|getArgs}}(myTable, "name", ...) - retreive stored list of arguments, plus optional extras
:{{id|USERAPI|GetReturnValues}}(order, functionCall) - Get the return values from ''functionCall'' in any ''order'' you want.
 
=== Color Functions ===
:{{id|USERAPI|ColorGradient}}(perc, R1, G1, B1, R2, G2, B2[, ...]) - Converts a percent value into a gradient from 2 or more RGB values
:{{id|USERAPI|HexToRGB}}("string") - Converts a hex color string to RGB values (0-255)
:{{id|USERAPI|HexToRGBPerc}}("string") - Converts a hex color string to RGB values (0.0-1.0)
:{{id|USERAPI|RGBToHex}}(red, green, blue) - Converts a RGB value (0-255) into a hex string
:{{id|USERAPI|RGBPercToHex}}(red, green, blue) - Converts a RGB value (0.0-1.0) into a hex string


== Color Functions ==
=== Cursor Functions ===
:[[ColorGradient]](perc, R1, G1, B1, R2, G2, B2[, ...]) - Converts a percent value into a gradient from 2 or more RGB values
:{{id|USERAPI|GetCursorScaledPosition}}() - Return the exact position the cursor is at based on scale.
:[[HexToRGB]]("string") - Converts a hex color string to RGB values (0-255)
:[[HexToRGBPerc]]("string") - Converts a hex color string to RGB values (0.0-1.0)
:[[RGBToHex]](red, green, blue) - Converts a RGB value (0-255) into a hex string
:[[RGBPercToHex]](red, green, blue) - Converts a RGB value (0.0-1.0) into a hex string


== Cursor Functions ==
=== Event Functions ===
:[[GetCursorScaledPosition]]() - Return the exact position the cursor is at based on scale.
:{{id|USERAPI|PLAYER_MONEY}} - Add a message to the chat frame when you gain or spend money.


== Frame Functions ==
=== Frame Functions ===
: [[GetQuadrant]](frame) - Find which quadrant of the screen a frame lies in.
:{{id|USERAPI|GetQuadrant}}(frame) - Find which quadrant of the screen a frame lies in.
: [[GetUIParentAnchor]](frame) - Returns SetPoint args for the frame, anchor is relative to the nearest corner of the screen.
:{{id|USERAPI|GetUIParentAnchor}}(frame) - Returns SetPoint args for a frame, anchor is relative to nearest corner of screen.
: [[Frame:SetManyAttributes]](...) - Simple function to embed in a frame to set many atributes at once.
:{{id|USERAPI|Frame|RegisterEvents}}(...) - Register '''n''' number of events at once.
:{{id|USERAPI|Frame|UnregisterEvents}}(...) - Unregister '''n''' number of events at once.
:{{id|USERAPI|Frame|SetManyAttributes}}(...) - Simple function to embed in a frame to set many atributes at once.
:{{id|USERAPI|UnregisterEventFromAllFrames}}(event) - Tell all the frames listening for '''event''' to stop listening for it.
:{{id|USERAPI|addDropDownMenuButton}}(uid, dropdown, index, title, usable, onClick [, hint]) - Adds a new button to a drop down (right-click menu)


== Item Functions ==
=== Guild Functions ===
:[[EquipItemByLink]](link) - Equips the first matching item found in the player's bags.
:{{id|USERAPI|GuildNameToIndex}}(name, searchOffline) - finds the 'guild' player index for a player name, for other guild functions.


== Localization Tables ==
=== Item Functions ===
: [[LocalizedClassNames]] - Table of localized classes
:{{id|USERAPI|EquipItemByLink}}(link) - Equips the first matching item found in the player's bags.


== Metatables ==
=== Localization Tables ===
: [[Memorizing table]] - A special table that calculates values as needed and saves them into itself
:{{id|USERAPI|LocalizedClassNames}} - Table of localized classes


== Slash Function ==  
=== Map Functions ===
: [[RunSlashCmd]] - Passes a slash command to the chatframe
:{{id|USERAPI|GetPlayerBearing}}() - Returns the player's current facing bearing based on minimap arrow


== String Functions ==
=== Metatables ===
:{{id|USERAPI|Memorizing table}} - A special table that calculates values as needed and saves them into itself


:[[ChunkSplit]](string [, length [, endChars]]) &nbsp; - Split a string into groups of "length" each ending with "endChars" (identical to the [http://php.net/chunk-split PHP function] of the same name).
=== Number Functions ===
:[[CountChars]](haystack, needle) &nbsp; - Return how many times ''needle'' is contained in ''haystack''.
:{{id|USERAPI|round}}(input, n) - Round '''input''' to '''n''' places.
:[[GetWords]]("string") &nbsp; - Split words on space boundary, return table
:{{id|USERAPI|truncate}}(number, n) - Truncate a number to n decimal places.
:[[printMSG]]("string") &nbsp; - Displays a custom message to the default chat frame, for the user to see (time, code and size saver).
:[[strfindt]](tabCaptures, ...) &nbsp; - Wrapper for [[API strfind|strfind]]() that returns captures in a table - can be used in if() clauses!
:[[StringHash]]("string") &nbsp; - Create a fair-quality 32-bit hash of a string
:[[substr]]("string", start [, length]) &nbsp; - Imp [[API_strsub|strsub]]. Returns a string starting from ''start'' to ''length'' characters from ''start'' (identical to the [http://php.net/substr PHP function] of the same name).


== Table Functions ==
=== Slash Function ===
:[[EraseTable]](t) - Erase all values from a table
:{{id|USERAPI|GetSlashFunc}} - Get an existing slash command function for hooking.
:[[tinsertbeforeval]](tab, valBefore, val) &nbsp; - Insert one value before another (without knowing its index)
:{{id|USERAPI|RunSlashCmd}} - Passes a slash command to the chatframe
:[[tremovebyval]](tab, val) &nbsp; - Remove a value (without knowing its index)
:{{id|USERAPI|SlashCmdList_AddSlashCommand}}(name, func, ...)
:[[tcount]](tab) &nbsp; - Count table members (works on non-integer-indexed tables)
:[[tcopy]](tabTo, tabFrom) &nbsp; - Recursively copy contents of one table to another


== Time Functions ==
=== String Functions ===
:[[GameTime:Get]]() &nbsp; - Get server time including seconds and milliseconds
:{{id|USERAPI|ChunkSplit}}(string [, length [, endChars]]) - Splits string into groups of 'length' each ending with 'endChars' (identical to  [http://php.net/chunk-split PHP] ChunkSplit).
:{{id|USERAPI|CountChars}}(haystack, needle) - Return how many times ''needle'' is contained in ''haystack''.
:{{id|USERAPI|GetWords}}("string") - Split words on space boundary, return table
:{{id|USERAPI|printMSG}}("string") - Displays a custom message to the default chat frame, for the user to see (time, code and size saver).
:{{id|USERAPI|strfindt}}(tabCaptures, ...) - Wrapper for [[API strfind|strfind]]() that returns captures in a table. can be used in if() clauses!
:{{id|USERAPI|StringHash}}("string") - Create a fair-quality 32-bit hash of a string
:{{id|USERAPI|substr}}("string", start [, length]) - Imp [[API strsub|strsub]]. Returns a string from ''start'' of ''length'' (identical to [http://php.net/substr PHP] substr).
 
=== Table Functions ===
:{{id|USERAPI|EraseTable}}(t) - Erase all values from a table
:{{id|USERAPI|tinsertbeforeval}}(tab, valBefore, val) - Insert one value before another (without knowing its index)
:{{id|USERAPI|tremovebyval}}(tab, val) - Remove a value (without knowing its index)
:{{id|USERAPI|tcount}}(tab) - Count table members (works on non-integer-indexed tables)
:{{id|USERAPI|tcopy}}(tabTo, tabFrom) - Recursively copy contents of one table to another
 
=== Time Functions ===
:{{id|USERAPI|GameTime|Get}}() - Get server time including seconds and milliseconds
:{{id|USERAPI|wait}}(delay,function [, param [,param [,...]]]) - runs a function (with paramenters) after specified amount of time before
:{{id|USERAPI|SecondsToDays}}() - Converts seconds to days/hours/minutes/seconds


== See also ==
== See also ==
* [[:Category:HOWTOs]] - must have cut-and-pasteable code snippets
* [[:Category:HOWTOs]] - must have cut-and-pasteable code snippets
 
[[Category:User defined functions| User defined functions]]
[[Category:Interface Customization]]
[[Category:User Defined Functions| {{PAGENAME}}]]

Latest revision as of 21:22, 2 August 2025

This page documents a user-defined function that you can copy and paste into your addon. Replace PREFIX with your addon or lib prefix to avoid conflicts between different versions of these functions.

These are cut-and-paste functions that you can use in your addons, submitted by WoWWiki contributors.  See also UI Snippets.

Additional snippets and useful ideas:
→ AddOn defined functions
→ User defined macros
→ User defined modules
→ User defined snippets


Reference

The following functions aim at extending the information WoW API provides; some are provided by specialized addons rather than being copy/pastable.

API

allAreType(type,...) - Returns true if all the additional parameters are of the type specified.

Arguments & Returns

setArgs(myTable, "name", ...) - remember list of arguments to use for a callback
getArgs(myTable, "name", ...) - retreive stored list of arguments, plus optional extras
GetReturnValues(order, functionCall) - Get the return values from functionCall in any order you want.

Color Functions

ColorGradient(perc, R1, G1, B1, R2, G2, B2[, ...]) - Converts a percent value into a gradient from 2 or more RGB values
HexToRGB("string") - Converts a hex color string to RGB values (0-255)
HexToRGBPerc("string") - Converts a hex color string to RGB values (0.0-1.0)
RGBToHex(red, green, blue) - Converts a RGB value (0-255) into a hex string
RGBPercToHex(red, green, blue) - Converts a RGB value (0.0-1.0) into a hex string

Cursor Functions

GetCursorScaledPosition() - Return the exact position the cursor is at based on scale.

Event Functions

PLAYER_MONEY - Add a message to the chat frame when you gain or spend money.

Frame Functions

GetQuadrant(frame) - Find which quadrant of the screen a frame lies in.
GetUIParentAnchor(frame) - Returns SetPoint args for a frame, anchor is relative to nearest corner of screen.
RegisterEvents(...) - Register n number of events at once.
UnregisterEvents(...) - Unregister n number of events at once.
SetManyAttributes(...) - Simple function to embed in a frame to set many atributes at once.
UnregisterEventFromAllFrames(event) - Tell all the frames listening for event to stop listening for it.
addDropDownMenuButton(uid, dropdown, index, title, usable, onClick [, hint]) - Adds a new button to a drop down (right-click menu)

Guild Functions

GuildNameToIndex(name, searchOffline) - finds the 'guild' player index for a player name, for other guild functions.

Item Functions

EquipItemByLink(link) - Equips the first matching item found in the player's bags.

Localization Tables

LocalizedClassNames - Table of localized classes

Map Functions

GetPlayerBearing() - Returns the player's current facing bearing based on minimap arrow

Metatables

Memorizing table - A special table that calculates values as needed and saves them into itself

Number Functions

round(input, n) - Round input to n places.
truncate(number, n) - Truncate a number to n decimal places.

Slash Function

GetSlashFunc - Get an existing slash command function for hooking.
RunSlashCmd - Passes a slash command to the chatframe
SlashCmdList_AddSlashCommand(name, func, ...)

String Functions

ChunkSplit(string [, length [, endChars]]) - Splits string into groups of 'length' each ending with 'endChars' (identical to PHP ChunkSplit).
CountChars(haystack, needle) - Return how many times needle is contained in haystack.
GetWords("string") - Split words on space boundary, return table
printMSG("string") - Displays a custom message to the default chat frame, for the user to see (time, code and size saver).
strfindt(tabCaptures, ...) - Wrapper for strfind() that returns captures in a table. can be used in if() clauses!
StringHash("string") - Create a fair-quality 32-bit hash of a string
substr("string", start [, length]) - Imp strsub. Returns a string from start of length (identical to PHP substr).

Table Functions

EraseTable(t) - Erase all values from a table
tinsertbeforeval(tab, valBefore, val) - Insert one value before another (without knowing its index)
tremovebyval(tab, val) - Remove a value (without knowing its index)
tcount(tab) - Count table members (works on non-integer-indexed tables)
tcopy(tabTo, tabFrom) - Recursively copy contents of one table to another

Time Functions

Get() - Get server time including seconds and milliseconds
wait(delay,function [, param [,param [,...]]]) - runs a function (with paramenters) after specified amount of time before
SecondsToDays() - Converts seconds to days/hours/minutes/seconds

See also

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