window

• If class_or_index_or_title is a number n, window_id returns the identifier of the nth subwindow in the main window associated with the current document. For example, if the current document is displayed in an edit class window, window_id(1) would return the identifier of the edit subwindow and window_id(2) would return the associated command subwindow identifier.

• If class_or_index_or_title is one of the classes helpwin1 through helpwin4, or msgwin1 through msgwin4, window_id returns the window identifier of the corresponding predefined window, or -1 if it does not exist. window_id never returns a window of one of these classes created by window_create, only built-in windows.

• If class_or_index_or_title is edit or cmd, window_id returns the identifier of the window of the specified class that last had focus. If the current document is associated with a window of one of these classes, window_id returns that window.

Class	Dialog Box
bookmark	Bookmarks
detail	Collapse/Expand Divisions
fileent	File Entities
find	Find/Replace
findent	Find Text or File Entity
findms	Find Marked Section
findpi	Find Processing Instruction
findtag	Find Tag/Attribute
graphent	Graphic Entities
modattrs	Modify Attributes
msp	Marked Section Parameters
notation	Notations
pgsetuped	Page Setup Editor View
spell	Spelling
styler	Arbortext Styler
tag	Insert Markup
tagtmpl	Tag Templates
textent	Text Entities

class_or_index_or_title may also specify a string to match either the title of a window or the name of a document open in a window. For example, window_id("Document1") returns the window identifier of the window displaying the document named “Document1”. If the string does not match a document name, the string is matched against the titles of all open windows. For example, window_id(window_get(0,"title")) would return the id of the current window, the same as window_id(0).