Messages

EE_ADD_REF	Increments the reference number of the plug-in.
EE_AUTOFILL	Performs the AutoFill or Flash Fill action on the CSV document.
EE_CLIP_HISTORY	Manipulates the Clipboard history.
EE_COMPARE	Compares two documents.
EE_CONVERT	Converts characters.
EE_CONVERT_CSV	Converts the CSV format of the current document.
EE_CONVERT_EX	Converts characters.
EE_CUSTOM_BAR_CLOSE	Closes a custom bar.
EE_CUSTOM_BAR_OPEN	Opens a custom bar.
EE_DEV_TO_VIEW	Converts the device (client) coordinates of a specified position to the display coordinates.
EE_DO_IDLE	Refreshes the toolbar, the window title, the tab, and others.
EE_EDIT_COLUMN	Moves, copies, deletes, or combines specified columns of the current CSV document.
EE_EDIT_TEMP	Opens temporary text as a new document, or activates, saves, or closes the existing temporary text.
EE_EMPTY_UNDO_BUFFER	Empties the buffer for the Undo and Redo commands.
EE_ENUM_CONFIG	Enumerates available configurations.
EE_ENUM_HIGHLIGHT	Enumerates highlighted strings.
EE_EXEC_COMMAND	Executes a specified command.
EE_EXEC_PLUGIN	Executes a specified plug-in.
EE_EXTRACT_FREQUENT	Extracts frequently used strings into a new document.
EE_FILTER	Filters the document with the specified string and settings.
EE_FINDA	Searches for an ANSI string.
EE_FINDW	Searches for an Unicode string.
EE_FIND_IN_FILESA	Searches for an ANSI string from multiple files in the specified path.
EE_FIND_IN_FILESW	Searches for a Unicode string from multiple files in the specified path.
EE_FIND_REGEX	Searches a string for a regular expression.
EE_FIND_REPLACE	Searches or replaces a string.
EE_FREE	Frees a specified plug-in.
EE_GET_ACCEL_ARRAY	Retrieves the array of the shortcut keys.
EE_GET_ACTIVE_STRING	Retrieves the active string.
EE_GET_ANCHOR_POS	Retrieves the origin point of the selection.
EE_GET_ATTR	Retrieves the configurations and attributes at the specified position.
EE_GET_CARET_POS	Retrieves the current cursor position.
EE_GET_CELL	Retrieves the Unicode text on the current cell.
EE_GET_CMD_ID	Obtains the Plug-in command ID.
EE_GET_COLOR	Retrieves the text and background colors and style for the specified part.
EE_GET_COLUMN	Retrieves a column of text in CSV mode.
EE_GET_CONFIGA	Retrieves the selected configuration name by an ANSI string.
EE_GET_CONFIGW	Retrieves the selected configuration name by a Unicode string.
EE_GET_DROPPED_FILE	Retrieves the most recently dropped file.
EE_GET_FILTER	Retrieves the filter strings and settings for the current document.
EE_GET_LINEA	Retrieves the ANSI text on the specified line.
EE_GET_LINES	Retrieves the number of the lines in EmEditor.
EE_GET_LINEW	Retrieves the Unicode text on the specified line.
EE_GET_MARGIN	Retrieves the margin size.
EE_GET_MODIFIED	Retrieves the modified state of the text.
EE_GET_MULTI_SEL	Retrieves the information of a specified selection when multiple selections are available.
EE_GET_OUTLINE_LEVEL	Retrieves the outline level for the specified logical line.
EE_GET_OUTPUT_STRING	Retrieves the text in the output bar.
EE_GET_PAGE_SIZE	Retrieves a page size.
EE_GET_REDRAW	Retrieves the flag that allows changes in EmEditor to be redrawn or prevents changes in EmEditor to be redrawn.
EE_GET_REF	Retrieves the reference number of a specified plug-in.
EE_GET_SCROLL_POS	Retrieves the current positions of the scroll bars.
EE_GET_SEL_END	Retrieves the ending character position of the selection.
EE_GET_SEL_START	Retrieves the starting character position of the selection.
EE_GET_SEL_TEXTA	Retrieves the selected ANSI text.
EE_GET_SEL_TEXTW	Retrieves the selected Unicode text.
EE_GET_SEL_TYPE	Obtains the type of selection status.
EE_GET_STATUSA	Retrieves the ANSI text displayed on the status bar.
EE_GET_STATUSW	Retrieves the Unicode text displayed on the status bar.
EE_GET_UNICODE_NAME	Retrieves the Unicode name of the specified character or string.
EE_GET_VERSION	Returns the version number.
EE_GET_WORD	Returns a word at the cursor position.
EE_HELP	Displays the specified page of the Help.
EE_INFO	Retrieves or sets the value of one of the information parameters used by EmEditor.
EE_INFO_EX	Retrieves or sets the value of one of the information parameters used by EmEditor.
EE_INSERT_FILEA	Inserts the specified file contents at the cursor (ANSI).
EE_INSERT_FILEW	Inserts the specified file contents at the cursor (Unicode).
EE_INSERT_STRINGA	Inserts an ANSI string into the current cursor position.
EE_INSERT_STRINGW	Inserts a Unicode string into the current cursor position.
EE_IS_CHAR_HALF_OR_FULL	Determines whether a specified character is a half-width or full-width character. It can also count the total widths of the specified string.
EE_JOIN	Combines two CSV documents specifying key columns, using a method similar to JOIN operations, and creates a new document.
EE_KEYBOARD_PROP	Displays the Keyboard Properties for the specified command ID and configuration.
EE_LINE_FROM_CHAR	Retrieves the index of the line that contains the specified character index (the serial position).
EE_LINE_INDEX	Retrieves the character index of the first character of a specified line in EmEditor.
EE_LOAD_CONFIGA	Reloads a configuration of which name is specified by an ANSI string.
EE_LOAD_CONFIGW	Reloads a configuration of which name is specified by a Unicode string.
EE_LOAD_FILEA	Loads a specified file into EmEditor (ANSI).
EE_LOAD_FILEW	Loads a specified file into EmEditor (Unicode).
EE_LOGICAL_TO_SERIAL	Converts the logical coordinates to the serial position.
EE_LOGICAL_TO_VIEW	Converts the logical coordinates to the display coordinates.
EE_MANAGE_DUPLICATES	Deletes or bookmarks duplicate lines.
EE_MATCH_REGEX	Searches a string for a regular expression.
EE_NUMBERING	Inserts numbering at the cursor position or vertical selection.
EE_OUTPUT_DIR	Sets the current directory for the output bar.
EE_OUTPUT_STRING	Appends a string to the output bar.
EE_PIVOT_TABLE	Creates a pivot table in the CSV document.
EE_QUERY_STATUS	Queries the status of the command, whether the command is enabled and whether the command is a checked status.
EE_QUERY_STRING	Queries the string associated with the specified command.
EE_QUERY_STRING_EX	Queries the string associated with the specified command. This message supports a long path exceeding MAX_PATH.
EE_REARRANGE_COLUMNS	Rearranges CSV columns.
EE_REDRAW	Allows changes in EmEditor to be redrawn or prevents changes in EmEditor to be redrawn.
EE_REG_QUERY_VALUE	Queries a value from the Registry or an INI file depending on the EmEditor settings.
EE_REG_SET_VALUE	Sets a value into the Registry or an INI file depending on the EmEditor settings.
EE_RELEASE	Decrements the reference number of the plug-in.
EE_REPLACE_IN_FILESA	Replaces an ANSI string in multiple files in the specified path.
EE_REPLACE_IN_FILESW	Replaces a Unicode string in multiple files in the specified path.
EE_REPLACEA	Replaces an ANSI string.
EE_REPLACEW	Replaces an Unicode string.
EE_RUN_MACRO	Runs a macro.
EE_SAVE_FILEA	Saves the text to a specified file(ANSI).
EE_SAVE_FILEW	Saves the text to a specified file(Unicode).
EE_SERIAL_TO_LOGICAL	Converts the serial position to the logical coordinates.
EE_SET_ANCHOR_POS	Sets the origin point of the selection.
EE_SET_CARET_POS	Moves the cursor position and optionally extends the selection.
EE_SET_CELL	Sets the text on the specified cell.
EE_SET_COLUMN	Sets a column of text in CSV mode.
EE_SET_CONFIGA	Changes to a configuration specified by an ANSI string.
EE_SET_CONFIGW	Changes to a configuration specified by a Unicode string.
EE_SET_MODIFIED	Changes the modified state of the text.
EE_SET_MULTI_SEL	Sets the information of a specified selection when multiple selections are available.
EE_SET_OUTLINE_ARRAY	Sets the outline levels for the specified multiple lines.
EE_SET_OUTLINE_LEVEL	Sets the outline level for the specified logical line.
EE_SET_SCROLL_POS	Specifies the scroll bars position.
EE_SET_SEL_LENGTH	Changes the character length of the selection.
EE_SET_SEL_TYPE	Sets the type of selection status.
EE_SET_SEL_VIEW	Changes the starting and ending position of the selection.
EE_SET_STATUSA	Displays an ANSI message on the status bar.
EE_SET_STATUSW	Displays a Unicode message on the status bar.
EE_SHOW_OUTLINE	Shows or hides the outline.
EE_SHOW_TIP	Shows or hides the tooltip.
EE_SORT	Sorts the document.
EE_SPLIT_COLUMN	Splits specified columns of the current CSV document.
EE_TOOLBAR_CLOSE	Closes a custom toolbar.
EE_TOOLBAR_OPEN	Opens a custom toolbar.
EE_TOOLBAR_SHOW	Shows or hides a custom toolbar.
EE_UNPIVOT	Converts columns into rows by flattening the CSV data.
EE_UPDATE_TOOLBAR	Updates a button status in a toolbar.
EE_VIEW_TO_DEV	Converts the display coordinates of a specified position to the device (client) coordinates.
EE_VIEW_TO_LOGICAL	Converts the display coordinates of a specified position to the logical coordinates.

These constants are defined at the header file (plugin.h).

The following Windows API messages are also supported. Some of their supports may not be complete. As the window handle parameter for the message, specify the window handle of the view, not frame of EmEditor. See Microsoft MSDN library for more information on these messages.

EM_GETSEL	Retrieves the starting and ending character positions of the current selection.
EM_SCROLLCARET	Scrolls the cursor into view.
EM_SETSEL	Selects a range of characters.
EM_REPLACESEL	Replaces the current selection with the specified text.
WM_CLEAR	Deletes the current selection.
WM_COPY	Copies the current selection to the Clipboard.
WM_CUT	Deletes the current selection and copy the deleted text to the Clipboard.
WM_GETTEXT	Copies the entire document into a buffer.
WM_GETTEXTLENGTH	Retrieves the size of buffer needed to retrieve the entire document excluding a terminating null character.
WM_PASTE	Copies the current content of the clipboard at the current cursor position.
WM_SETTEXT	Sets the entire document.
WM_UNDO	Undo the last operation.