This section contains information about the programming elements used with rich edit controls. A rich edit control enables the user to enter, edit, print, and save text. The text can be assigned character and paragraph formatting, and can include embedded Component Object Model (COM) objects.
Because rich edit controls support almost all of the messages and notification messages used with multiline Edit Controls, applications that already use edit controls can easily be changed to use rich edit controls.
About Rich Edit Controls This section introduces rich edit controls.Printing Rich Edit Controls This section contains information about how to print the contents of rich edit controls.Using COM in Rich Edit Controls This section contains information about using Object Linking and Embedding (OLE) in rich edit controls.Using Rich Edit Controls This section contains information about implementing rich edit controls.
This section introduces rich edit controls.
This section contains information about how to print the contents of rich edit controls.
This section contains information about using Object Linking and Embedding (OLE) in rich edit controls.
This section contains information about implementing rich edit controls.
EditStreamCallback The EditStreamCallback function is an application defined callback function used with the EM_STREAMIN and EM_STREAMOUT messages. It is used to transfer a stream of data into or out of a rich edit control. The EDITSTREAMCALLBACK type defines a pointer to this callback function. EditStreamCallback is a placeholder for the application-defined function name. EditWordBreakProcEx The EditWordBreakProcEx function is an application defined–callback function used with the EM_SETWORDBREAKPROCEX message. It determines the character index of the word break or the character class and word-break flags of the characters in the specified text. The EDITWORDBREAKPROCEX type defines a pointer to this callback function. EditWordBreakProcEx is a placeholder for the application-defined function name. HyphenateProc The HyphenateProc function is an application–defined callback function used with the EM_SETHYPHENATEINFO message. It determines how hyphenation is done in a Microsoft Rich Edit control.
The EditStreamCallback function is an application defined callback function used with the EM_STREAMIN and EM_STREAMOUT messages. It is used to transfer a stream of data into or out of a rich edit control. The EDITSTREAMCALLBACK type defines a pointer to this callback function. EditStreamCallback is a placeholder for the application-defined function name.
The EditWordBreakProcEx function is an application defined–callback function used with the EM_SETWORDBREAKPROCEX message. It determines the character index of the word break or the character class and word-break flags of the characters in the specified text. The EDITWORDBREAKPROCEX type defines a pointer to this callback function. EditWordBreakProcEx is a placeholder for the application-defined function name.
The HyphenateProc function is an application–defined callback function used with the EM_SETHYPHENATEINFO message. It determines how hyphenation is done in a Microsoft Rich Edit control.
IRichEditOle The IRichEditOle interface exposes the COM functionality of a rich edit control. The interface can be obtained by sending the EM_GETOLEINTERFACE message. This interface has the following methods.IRichEditOleCallback The IRichEditOleCallback interface is used by a rich text edit control to retrieve OLE-related information from its client. A rich edit control client is responsible for implementing this interface and assigning it to the control by using the EM_SETOLECALLBACK message.
The IRichEditOle interface exposes the COM functionality of a rich edit control. The interface can be obtained by sending the EM_GETOLEINTERFACE message.
This interface has the following methods.
The IRichEditOleCallback interface is used by a rich text edit control to retrieve OLE-related information from its client. A rich edit control client is responsible for implementing this interface and assigning it to the control by using the EM_SETOLECALLBACK message.
EM_AUTOURLDETECT An EM_AUTOURLDETECT message enables or disables automatic detection of URLs by a rich edit control. EM_CANPASTE The EM_CANPASTE message determines whether a rich edit control can paste a specified clipboard format.EM_CANREDO The EM_CANREDO message determines whether there are any actions in the control redo queue. EM_DISPLAYBAND The EM_DISPLAYBAND message displays a portion of the contents of a rich edit control, as previously formatted for a device using the EM_FORMATRANGE message.EM_EXGETSEL The EM_EXGETSEL message retrieves the starting and ending character positions of the selection in a rich edit control.EM_EXLIMITTEXT The EM_EXLIMITTEXT message sets an upper limit to the amount of text the user can type or paste into a rich edit control.EM_EXLINEFROMCHAR The EM_EXLINEFROMCHAR message determines which line contains the specified character in a rich edit control.EM_EXSETSEL The EM_EXSETSEL message selects a range of characters or COM objects in a Rich Edit control.EM_FINDTEXT The EM_FINDTEXT message finds text within a rich edit control.EM_FINDTEXTEX The EM_FINDTEXTEX message finds text within a rich edit control.EM_FINDTEXTEXW The EM_FINDTEXTEXW message finds Unicode text within a rich edit control.EM_FINDTEXTW The EM_FINDTEXTW message finds Unicode text within a rich edit control.EM_FINDWORDBREAK The EM_FINDWORDBREAK message finds the next word break before or after the specified character position or retrieves information about the character at that position.EM_FORMATRANGE The EM_FORMATRANGE message formats a range of text in a rich edit control for a specific device.EM_GETAUTOURLDETECT The EM_GETAUTOURLDETECT message indicates whether the auto URL detection is turned on in the rich edit control. EM_GETBIDIOPTIONS The EM_GETBIDIOPTIONS message indicates the current state of the bidirectional options in the rich edit control. EM_GETCHARFORMAT The EM_GETCHARFORMAT message determines the character formatting in a rich edit control.EM_GETCTFMODEBIAS An application sends a EM_GETCTFMODEBIAS message to get the Text Services Framework mode bias values for a Rich Edit control. EM_GETCTFOPENSTATUS An application sends an EM_GETCTFOPENSTATUS message to determine if the Text Services Framework (TSF) keyboard is open or closed. EM_GETEDITSTYLE The EM_GETEDITSTYLE message retrieves the current edit style flags.EM_GETEVENTMASK The EM_GETEVENTMASK message retrieves the event mask for a rich edit control. The event mask specifies which notification messages the control sends to its parent window.EM_GETHYPHENATEINFO An application sends an EM_GETHYPHENATEINFO message to get information about hyphenation for a Rich Edit control. EM_GETIMECOLOR The EM_GETIMECOLOR message retrieves the Input Method Editor (IME) composition color. This message is available only in Asian-language versions of the operating system.EM_GETIMECOMPMODE An application sends an EM_GETIMECOMPMODE message to get the current IME mode for a rich edit control.EM_GETIMECOMPTEXT An application sends an EM_GETIMECOMPTEXT message to get the IME composition text. EM_GETIMEMODEBIAS An application sends an EM_GETIMEMODEBIAS message to get the IME mode bias for a Rich Edit control. EM_GETIMEOPTIONS The EM_GETIMEOPTIONS message retrieves the current IME options. This message is available only in Asian-language versions of the operating system.EM_GETIMEPROPERTY An application sends a EM_GETIMEPROPERTY message to get the property and capabilities of the IME associated with the current input locale. EM_GETLANGOPTIONS An application sends an EM_GETLANGOPTIONS message to get a rich edit control's option settings for IME and Asian language support. EM_GETOLEINTERFACE The EM_GETOLEINTERFACE message retrieves an IRichEditOle object that a client can use to access a rich edit control's COM functionality.EM_GETOPTIONS The EM_GETOPTIONS message retrieves rich edit control options.EM_GETPAGEROTATE Deprecated. An application sends an EM_GETPAGEROTATE message to get the text layout for a Rich Edit control. EM_GETPARAFORMAT The EM_GETPARAFORMAT message retrieves the paragraph formatting of the current selection in a rich edit control.EM_GETPUNCTUATION The EM_GETPUNCTUATION message gets the current punctuation characters for the rich edit control. This message is available only in Asian-language versions of the operating system.EM_GETREDONAME An application sends an EM_GETREDONAME message to a rich edit control to retrieve the type of the next action, if any, in the control's redo queue. To send this message, call the SendMessage function with the following parameters.EM_GETSCROLLPOS An application sends an EM_GETSCROLLPOS message to obtain the current scroll position of the edit control. EM_GETSELTEXT The EM_GETSELTEXT message retrieves the currently selected text in a rich edit control.EM_GETTEXTEX The EM_GETTEXTEX message allows you to get all of the text from the rich edit control in any particular code base you want. EM_GETTEXTLENGTHEX The EM_GETTEXTLENGTHEX message calculates text length in various ways. It is usually called before creating a buffer to receive the text from the control. EM_GETTEXTMODE An application sends an EM_GETTEXTMODE message to get the current text mode and undo level of a rich edit control. EM_GETTEXTRANGE The EM_GETTEXTRANGE message retrieves a specified range of characters from a rich edit control.EM_GETTYPOGRAPHYOPTIONS The EM_GETTYPOGRAPHYOPTIONS message returns the current state of the typography options of a rich edit control.EM_GETUNDONAME Rich Edit 2.0 and later: An application sends an EM_GETUNDONAME message to a rich edit control to retrieve the type of the next undo action, if any.Rich Edit 1.0: This message is not supported.To send this message, call the SendMessage function with the following parameters.EM_GETWORDBREAKPROCEX The EM_GETWORDBREAKPROCEX message retrieves the address of the currently registered extended word-break procedure.EM_GETWORDWRAPMODE The EM_GETWORDWRAPMODE message gets the current word wrap and word-break options for the rich edit control. This message is available only in Asian-language versions of the operating system.EM_GETZOOM The EM_GETZOOM message gets the current zoom ratio, which is always between 1/64 and 64. EM_HIDESELECTION The EM_HIDESELECTION message hides or shows the selection in a rich edit control.EM_ISIME An application sends a EM_ISIME message to determine if current input locale is an East Asian locale. EM_PASTESPECIAL The EM_PASTESPECIAL message pastes a specific clipboard format in a rich edit control.EM_RECONVERSION The EM_RECONVERSION message invokes the IME reconversion dialog box. EM_REDO Send an EM_REDO message to a rich edit control to redo the next action in the control's redo queue.EM_REQUESTRESIZE The EM_REQUESTRESIZE message forces a rich edit control to send an EN_REQUESTRESIZE notification message to its parent window.EM_SELECTIONTYPE The EM_SELECTIONTYPE message determines the selection type for a rich edit control.EM_SETBIDIOPTIONS The EM_SETBIDIOPTIONS message sets the current state of the bidirectional options in the rich edit control. EM_SETBKGNDCOLOR The EM_SETBKGNDCOLOR message sets the background color for a rich edit control.EM_SETCHARFORMAT The EM_SETCHARFORMAT message sets character formatting in a rich edit control.EM_SETCTFMODEBIAS An application sends an EM_SETCTFMODEBIAS message to set the Text Services Framework (TSF) mode bias for a Rich Edit control. EM_SETCTFOPENSTATUS An application sends an EM_SETCTFOPENSTATUS message to open or close the Text Services Framework (TSF) keyboard. EM_SETEDITSTYLE The EM_SETEDITSTYLE message sets the current edit style flags. EM_SETEVENTMASK The EM_SETEVENTMASK message sets the event mask for a rich edit control. The event mask specifies which notification messages the control sends to its parent window.EM_SETFONTSIZE The EM_SETFONTSIZE message sets the font size for the selected text. EM_SETHYPHENATEINFO An application sends an EM_SETHYPHENATEINFO message to set the way a Rich Edit control does hyphenation. EM_SETIMECOLOR The EM_SETIMECOLOR message sets the IME composition color. This message is available only in Asian-language versions of the operating system.EM_SETIMEMODEBIAS An application sends an EM_SETIMEMODEBIAS message to set the IME mode bias for a Rich Edit control. EM_SETIMEOPTIONS The EM_SETIMEOPTIONS message sets the IME options. This message is available only in Asian-language versions of the operating system.EM_SETLANGOPTIONS An application sends an EM_SETLANGOPTIONS message to set options for IME and Asian language support in a rich edit control. EM_SETOLECALLBACK The EM_SETOLECALLBACK message gives a rich edit control an IRichEditOleCallback object that the control uses to get OLE-related resources and information from the client.EM_SETOPTIONS The EM_SETOPTIONS message sets the options for a rich edit control.EM_SETPAGEROTATE Deprecated. An application sends an EM_SETPAGEROTATE message to set the text layout for a Rich Edit control. EM_SETPALETTE An application sends an EM_SETPALETTE message to change the palette that rich edit uses for its display window. EM_SETPARAFORMAT The EM_SETPARAFORMAT message sets the paragraph formatting for the current selection in a rich edit control.EM_SETPUNCTUATION The EM_SETPUNCTUATION message sets the punctuation characters for a rich edit control. This message is available only in Asian-language versions of the operating system.EM_SETSCROLLPOS An application sends an EM_SETSCROLLPOS message to tell the rich edit control to scroll to a particular point.EM_SETTARGETDEVICE The EM_SETTARGETDEVICE message sets the target device and line width used for "what you see is what you get" (WYSIWYG) formatting in a rich edit control.EM_SETTEXTEX The EM_SETTEXTEX message combines the functionality of WM_SETTEXT and EM_REPLACESEL and adds the ability to set text using a code page and to use either rich text or plain text.EM_SETTEXTMODE An application sends an EM_SETTEXTMODE message to set the text mode or undo level of a rich edit control. The message fails if the control contains any text. EM_SETTYPOGRAPHYOPTIONS The EM_SETTYPOGRAPHYOPTIONS message sets the current state of the typography options of a rich edit control. EM_SETUNDOLIMIT An application sends an EM_SETUNDOLIMIT message to a rich edit control to set the maximum number of actions that can stored in the undo queue. EM_SETWORDBREAKPROCEX The EM_SETWORDBREAKPROCEX message sets the extended word-break procedure.EM_SETWORDWRAPMODE The EM_SETWORDWRAPMODE message sets the word-wrapping and word-breaking options for the rich edit control. This message is available only in Asian-language versions of the operating system.EM_SETZOOM The EM_SETZOOM message sets the zoom ratio anywhere between 1/64 and 64. EM_SHOWSCROLLBAR The EM_SHOWSCROLLBAR message shows or hides one of the scroll bars in the Text Host window. EM_STOPGROUPTYPING An application sends an EM_STOPGROUPTYPING message to a rich edit control to stop the control from collecting additional typing actions into the current undo action. The control stores the next typing action, if any, into a new action in the undo queue. EM_STREAMIN The EM_STREAMIN message replaces the contents of a rich edit control with a stream of data provided by an application definedEM_STREAMOUT The EM_STREAMOUT message causes a rich edit control to pass its contents to an application
An EM_AUTOURLDETECT message enables or disables automatic detection of URLs by a rich edit control.
The EM_CANPASTE message determines whether a rich edit control can paste a specified clipboard format.
The EM_CANREDO message determines whether there are any actions in the control redo queue.
The EM_DISPLAYBAND message displays a portion of the contents of a rich edit control, as previously formatted for a device using the EM_FORMATRANGE message.
The EM_EXGETSEL message retrieves the starting and ending character positions of the selection in a rich edit control.
The EM_EXLIMITTEXT message sets an upper limit to the amount of text the user can type or paste into a rich edit control.
The EM_EXLINEFROMCHAR message determines which line contains the specified character in a rich edit control.
The EM_EXSETSEL message selects a range of characters or COM objects in a Rich Edit control.
The EM_FINDTEXT message finds text within a rich edit control.
The EM_FINDTEXTEX message finds text within a rich edit control.
The EM_FINDTEXTEXW message finds Unicode text within a rich edit control.
The EM_FINDTEXTW message finds Unicode text within a rich edit control.
The EM_FINDWORDBREAK message finds the next word break before or after the specified character position or retrieves information about the character at that position.
The EM_FORMATRANGE message formats a range of text in a rich edit control for a specific device.
The EM_GETAUTOURLDETECT message indicates whether the auto URL detection is turned on in the rich edit control.
The EM_GETBIDIOPTIONS message indicates the current state of the bidirectional options in the rich edit control.
The EM_GETCHARFORMAT message determines the character formatting in a rich edit control.
An application sends a EM_GETCTFMODEBIAS message to get the Text Services Framework mode bias values for a Rich Edit control.
An application sends an EM_GETCTFOPENSTATUS message to determine if the Text Services Framework (TSF) keyboard is open or closed.
The EM_GETEDITSTYLE message retrieves the current edit style flags.
The EM_GETEVENTMASK message retrieves the event mask for a rich edit control. The event mask specifies which notification messages the control sends to its parent window.
An application sends an EM_GETHYPHENATEINFO message to get information about hyphenation for a Rich Edit control.
The EM_GETIMECOLOR message retrieves the Input Method Editor (IME) composition color. This message is available only in Asian-language versions of the operating system.
An application sends an EM_GETIMECOMPMODE message to get the current IME mode for a rich edit control.
An application sends an EM_GETIMECOMPTEXT message to get the IME composition text.
An application sends an EM_GETIMEMODEBIAS message to get the IME mode bias for a Rich Edit control.
The EM_GETIMEOPTIONS message retrieves the current IME options. This message is available only in Asian-language versions of the operating system.
An application sends a EM_GETIMEPROPERTY message to get the property and capabilities of the IME associated with the current input locale.
An application sends an EM_GETLANGOPTIONS message to get a rich edit control's option settings for IME and Asian language support.
The EM_GETOLEINTERFACE message retrieves an IRichEditOle object that a client can use to access a rich edit control's COM functionality.
The EM_GETOPTIONS message retrieves rich edit control options.
Deprecated. An application sends an EM_GETPAGEROTATE message to get the text layout for a Rich Edit control.
The EM_GETPARAFORMAT message retrieves the paragraph formatting of the current selection in a rich edit control.
The EM_GETPUNCTUATION message gets the current punctuation characters for the rich edit control. This message is available only in Asian-language versions of the operating system.
An application sends an EM_GETREDONAME message to a rich edit control to retrieve the type of the next action, if any, in the control's redo queue.
To send this message, call the SendMessage function with the following parameters.
An application sends an EM_GETSCROLLPOS message to obtain the current scroll position of the edit control.
The EM_GETSELTEXT message retrieves the currently selected text in a rich edit control.
The EM_GETTEXTEX message allows you to get all of the text from the rich edit control in any particular code base you want.
The EM_GETTEXTLENGTHEX message calculates text length in various ways. It is usually called before creating a buffer to receive the text from the control.
An application sends an EM_GETTEXTMODE message to get the current text mode and undo level of a rich edit control.
The EM_GETTEXTRANGE message retrieves a specified range of characters from a rich edit control.
The EM_GETTYPOGRAPHYOPTIONS message returns the current state of the typography options of a rich edit control.
Rich Edit 2.0 and later: An application sends an EM_GETUNDONAME message to a rich edit control to retrieve the type of the next undo action, if any.
Rich Edit 1.0: This message is not supported.
The EM_GETWORDBREAKPROCEX message retrieves the address of the currently registered extended word-break procedure.
The EM_GETWORDWRAPMODE message gets the current word wrap and word-break options for the rich edit control. This message is available only in Asian-language versions of the operating system.
The EM_GETZOOM message gets the current zoom ratio, which is always between 1/64 and 64.
The EM_HIDESELECTION message hides or shows the selection in a rich edit control.
An application sends a EM_ISIME message to determine if current input locale is an East Asian locale.
The EM_PASTESPECIAL message pastes a specific clipboard format in a rich edit control.
The EM_RECONVERSION message invokes the IME reconversion dialog box.
Send an EM_REDO message to a rich edit control to redo the next action in the control's redo queue.
The EM_REQUESTRESIZE message forces a rich edit control to send an EN_REQUESTRESIZE notification message to its parent window.
The EM_SELECTIONTYPE message determines the selection type for a rich edit control.
The EM_SETBIDIOPTIONS message sets the current state of the bidirectional options in the rich edit control.
The EM_SETBKGNDCOLOR message sets the background color for a rich edit control.
The EM_SETCHARFORMAT message sets character formatting in a rich edit control.
An application sends an EM_SETCTFMODEBIAS message to set the Text Services Framework (TSF) mode bias for a Rich Edit control.
An application sends an EM_SETCTFOPENSTATUS message to open or close the Text Services Framework (TSF) keyboard.
The EM_SETEDITSTYLE message sets the current edit style flags.
The EM_SETEVENTMASK message sets the event mask for a rich edit control. The event mask specifies which notification messages the control sends to its parent window.
The EM_SETFONTSIZE message sets the font size for the selected text.
An application sends an EM_SETHYPHENATEINFO message to set the way a Rich Edit control does hyphenation.
The EM_SETIMECOLOR message sets the IME composition color. This message is available only in Asian-language versions of the operating system.
An application sends an EM_SETIMEMODEBIAS message to set the IME mode bias for a Rich Edit control.
The EM_SETIMEOPTIONS message sets the IME options. This message is available only in Asian-language versions of the operating system.
An application sends an EM_SETLANGOPTIONS message to set options for IME and Asian language support in a rich edit control.
The EM_SETOLECALLBACK message gives a rich edit control an IRichEditOleCallback object that the control uses to get OLE-related resources and information from the client.
The EM_SETOPTIONS message sets the options for a rich edit control.
Deprecated. An application sends an EM_SETPAGEROTATE message to set the text layout for a Rich Edit control.
An application sends an EM_SETPALETTE message to change the palette that rich edit uses for its display window.
The EM_SETPARAFORMAT message sets the paragraph formatting for the current selection in a rich edit control.
The EM_SETPUNCTUATION message sets the punctuation characters for a rich edit control. This message is available only in Asian-language versions of the operating system.
An application sends an EM_SETSCROLLPOS message to tell the rich edit control to scroll to a particular point.
The EM_SETTARGETDEVICE message sets the target device and line width used for "what you see is what you get" (WYSIWYG) formatting in a rich edit control.
The EM_SETTEXTEX message combines the functionality of WM_SETTEXT and EM_REPLACESEL and adds the ability to set text using a code page and to use either rich text or plain text.
An application sends an EM_SETTEXTMODE message to set the text mode or undo level of a rich edit control. The message fails if the control contains any text.
The EM_SETTYPOGRAPHYOPTIONS message sets the current state of the typography options of a rich edit control.
An application sends an EM_SETUNDOLIMIT message to a rich edit control to set the maximum number of actions that can stored in the undo queue.
The EM_SETWORDBREAKPROCEX message sets the extended word-break procedure.
The EM_SETWORDWRAPMODE message sets the word-wrapping and word-breaking options for the rich edit control. This message is available only in Asian-language versions of the operating system.
The EM_SETZOOM message sets the zoom ratio anywhere between 1/64 and 64.
The EM_SHOWSCROLLBAR message shows or hides one of the scroll bars in the Text Host window.
An application sends an EM_STOPGROUPTYPING message to a rich edit control to stop the control from collecting additional typing actions into the current undo action. The control stores the next typing action, if any, into a new action in the undo queue.
The EM_STREAMIN message replaces the contents of a rich edit control with a stream of data provided by an application defined
The EM_STREAMOUT message causes a rich edit control to pass its contents to an application
EN_ALIGNLTR The EN_ALIGNLTR notification message notifies a rich edit control's parent window that the paragraph direction has changed to left-to-right. A rich edit control sends this notification message in the form of a WM_COMMAND message.EN_ALIGNRTL The EN_ALIGNRTL notification message notifies a rich edit control's parent window that the paragraph direction changed to right-to-left. A rich edit control sends this notification message in the form of a WM_COMMAND message.EN_CORRECTTEXT The EN_CORRECTTEXT message notifies a rich edit control parent window that a SYV_CORRECT gesture occurred, giving the parent window a chance to cancel correcting the text. A rich edit control sends this notification message in the form of a WM_NOTIFY message. EN_DRAGDROPDONE The EN_DRAGDROPDONE notification message notifies a rich edit control's parent window that the drag-and-drop operation has completed. A rich edit control sends this notification message in the form of a WM_NOTIFY message.EN_DROPFILES The EN_DROPFILES message notifies a rich edit control parent window that the user is attempting to drop files into the control. A rich edit control sends this notification message in the form of a WM_NOTIFY message when it receives the WM_DROPFILES message.EN_IMECHANGE The EN_IMECHANGE message notifies a rich edit control's parent that the IME conversion status has changed. This message is available only for Asian-language versions of the operating system. A rich edit control sends this notification message in the form of a WM_COMMAND message.EN_LINK A rich edit control sends EN_LINK messages when it receives various messages, for example, when the user clicks the mouse or when the mouse pointer is over text that has the CFE_LINK effect. The parent window of the control receives this notification message through a WM_NOTIFY message.EN_LOWFIRTF The EN_LOWFIRTF notification message notifies the parent window of a Rich Edit control that an unsupported Rich Text Format (RTF) keyword was received. A Rich Edit control sends this notification message in the form of a WM_NOTIFY message.EN_MSGFILTER The EN_MSGFILTER message notifies a rich edit control's parent window of a keyboard or mouse event in the control. A rich edit control sends this notification message in the form of a WM_NOTIFY message.EN_OBJECTPOSITIONS The EN_OBJECTPOSITIONS notification message notifies a rich edit control's parent window when the control reads in objects. A rich edit control sends this notification message in the form of a WM_NOTIFY message.EN_OLEOPFAILED The EN_OLEOPFAILED message notifies a rich edit control's parent window that a user action on a COM object has failed. A rich edit control sends this notification message in the form of a WM_NOTIFY message.EN_PROTECTED The EN_PROTECTED message notifies a rich edit control's parent window that the user is taking an action that would change a protected range of text. A rich edit control sends this notification message in the form of a WM_NOTIFY message.EN_REQUESTRESIZE The EN_REQUESTRESIZE message notifies a rich edit control's parent window that the control's contents are either smaller or larger than the control's window size. A rich edit control sends this notification message in the form of a WM_NOTIFY message.EN_SAVECLIPBOARD The EN_SAVECLIPBOARD message notifies the rich edit control's parent window that the control is closing and the clipboard contains information. A rich edit control sends this notification message in the form of a WM_NOTIFY message.EN_SELCHANGE The EN_SELCHANGE message notifies a rich edit control's parent window that the current selection has changed. A rich edit control sends this notification message in the form of a WM_NOTIFY message.EN_STOPNOUNDO The EN_STOPNOUNDO message notifies a rich edit control's parent window that an action occurred for which the control cannot allocate enough memory to maintain the undo state. A rich edit control sends this notification message in the form of a WM_NOTIFY message.
The EN_ALIGNLTR notification message notifies a rich edit control's parent window that the paragraph direction has changed to left-to-right. A rich edit control sends this notification message in the form of a WM_COMMAND message.
The EN_ALIGNRTL notification message notifies a rich edit control's parent window that the paragraph direction changed to right-to-left. A rich edit control sends this notification message in the form of a WM_COMMAND message.
The EN_CORRECTTEXT message notifies a rich edit control parent window that a SYV_CORRECT gesture occurred, giving the parent window a chance to cancel correcting the text. A rich edit control sends this notification message in the form of a WM_NOTIFY message.
The EN_DRAGDROPDONE notification message notifies a rich edit control's parent window that the drag-and-drop operation has completed. A rich edit control sends this notification message in the form of a WM_NOTIFY message.
The EN_DROPFILES message notifies a rich edit control parent window that the user is attempting to drop files into the control. A rich edit control sends this notification message in the form of a WM_NOTIFY message when it receives the WM_DROPFILES message.
The EN_IMECHANGE message notifies a rich edit control's parent that the IME conversion status has changed. This message is available only for Asian-language versions of the operating system. A rich edit control sends this notification message in the form of a WM_COMMAND message.
A rich edit control sends EN_LINK messages when it receives various messages, for example, when the user clicks the mouse or when the mouse pointer is over text that has the CFE_LINK effect.
The parent window of the control receives this notification message through a WM_NOTIFY message.
The EN_LOWFIRTF notification message notifies the parent window of a Rich Edit control that an unsupported Rich Text Format (RTF) keyword was received. A Rich Edit control sends this notification message in the form of a WM_NOTIFY message.
The EN_MSGFILTER message notifies a rich edit control's parent window of a keyboard or mouse event in the control. A rich edit control sends this notification message in the form of a WM_NOTIFY message.
The EN_OBJECTPOSITIONS notification message notifies a rich edit control's parent window when the control reads in objects. A rich edit control sends this notification message in the form of a WM_NOTIFY message.
The EN_OLEOPFAILED message notifies a rich edit control's parent window that a user action on a COM object has failed. A rich edit control sends this notification message in the form of a WM_NOTIFY message.
The EN_PROTECTED message notifies a rich edit control's parent window that the user is taking an action that would change a protected range of text. A rich edit control sends this notification message in the form of a WM_NOTIFY message.
The EN_REQUESTRESIZE message notifies a rich edit control's parent window that the control's contents are either smaller or larger than the control's window size. A rich edit control sends this notification message in the form of a WM_NOTIFY message.
The EN_SAVECLIPBOARD message notifies the rich edit control's parent window that the control is closing and the clipboard contains information. A rich edit control sends this notification message in the form of a WM_NOTIFY message.
The EN_SELCHANGE message notifies a rich edit control's parent window that the current selection has changed. A rich edit control sends this notification message in the form of a WM_NOTIFY message.
The EN_STOPNOUNDO message notifies a rich edit control's parent window that an action occurred for which the control cannot allocate enough memory to maintain the undo state. A rich edit control sends this notification message in the form of a WM_NOTIFY message.
BIDIOPTIONS The BIDIOPTIONS structure contains bidirectional information about a rich edit control. This structure is used by the EM_GETBIDIOPTIONS and EM_SETBIDIOPTIONS messages to get and set the bidirectional information for a control.CHARFORMAT The CHARFORMAT structure contains information about character formatting in a rich edit control. Rich Edit 2.0: The CHARFORMAT2 structure is a Rich Edit 2.0 extension of the CHARFORMAT structure. Rich Edit 2.0 and later allows you to use either structure with the EM_GETCHARFORMAT and EM_SETCHARFORMAT messages. CHARFORMAT2 The CHARFORMAT2 structure contains information about character formatting in a rich edit control. CHARFORMAT2 is a Rich Edit 2.0 extension of the CHARFORMAT structure. Rich Edit 2.0 allows you to use either structure with the EM_GETCHARFORMAT and EM_SETCHARFORMAT messages. CHARRANGE The CHARRANGE structure specifies a range of characters in a rich edit control.If the cpMin and cpMax members are equal, the range is empty. The range includes everything if cpMin is 0 and cpMax is COMPCOLOR The COMPCOLOR structure contains color settings for a composition string.EDITSTREAM The EDITSTREAM structure contains information that an application passes to a rich edit control in a EM_STREAMIN or EM_STREAMOUT message. The rich edit control uses the information to transfer a stream of data into or out of the control. ENCORRECTTEXT The ENCORRECTTEXT structure contains information about the selected text to be corrected. ENDROPFILES The ENDROPFILES structure contains information associated with an EN_DROPFILES notification message. A rich edit control sends this notification message when it receives a WM_DROPFILES message.ENLINK The ENLINK structure contains information about an EN_LINK notification message from a rich edit control. ENLOWFIRTF The ENLOWFIRTF structure contains information about an unsupported RTF keyword in a Rich Edit control. ENOLEOPFAILED The ENOLEOPFAILED structure contains information about a failed operation.ENPROTECTED The ENPROTECTED structure contains information associated with an EN_PROTECTED notification message. A rich edit control sends this notification when the user attempts to edit protected text.ENSAVECLIPBOARD The ENSAVECLIPBOARD structure contains information about objects and text on the clipboard.FINDTEXT The FINDTEXT structure contains information about a search operation in a rich edit control. This structure is used with the EM_FINDTEXT message.FINDTEXTEX The FINDTEXTEX structure contains information about text to search for in a rich edit control. This structure is used with the EM_FINDTEXTEX message.FORMATRANGE The FORMATRANGE structure contains information that a rich edit control uses to format its output for a particular device. This structure is used with the EM_FORMATRANGE message.GETTEXTEX The GETTEXTEX structure contains information about an operation to get text from a rich edit control. This structure is passed in the wParam in the EM_GETTEXTEX message.GETTEXTLENGTHEX The GETTEXTLENGTHEX structure contains information about how the text length of a rich edit control should be calculated. This structure is passed in the wParam in the EM_GETTEXTLENGTHEX message.HYPHENATEINFO The HYPHENATEINFO structure contains information about hyphenation in a Rich Edit control. HYPHRESULT The HYPHRESULT structure contains information about the result of hyphenation in a Rich Edit control. IMECOMPTEXT The IMECOMPTEXT structure contains information about the composition text in a Rich Edit control. MSGFILTER The MSGFILTER structure contains information about a keyboard or mouse event. A rich edit control sends this structure to its parent window as part of an EN_MSGFILTER notification message, enabling the parent to change the message or prevent it from being processed.OBJECTPOSITIONS The OBJECTPOSITIONS structure contains object position information. PARAFORMAT The PARAFORMAT structure contains information about paragraph formatting attributes in a rich edit control. This structure is used with the EM_GETPARAFORMAT and EM_SETPARAFORMAT messages. In Rich Edit 2.0, the PARAFORMAT2 structure is a Rich Edit 2.0 extension of the PARAFORMAT structure. Rich Edit 2.0 allows you to use either structure with EM_GETPARAFORMAT and EM_SETPARAFORMAT. PARAFORMAT2 The PARAFORMAT2 structure contains information about paragraph formatting attributes in a rich edit control. PARAFORMAT2 is a Rich Edit 2.0 extension of the PARAFORMAT structure. Rich Edit 2.0 allows you to use either structure with the EM_GETPARAFORMAT and EM_SETPARAFORMAT messages. PUNCTUATION The PUNCTUATION structure contains information about the punctuation used in a rich edit control.REOBJECT The REOBJECT structure contains information about an object. REPASTESPECIAL The REPASTESPECIAL structure contains information identifying whether the display aspect of a pasted object should be based on the content of the object or the icon that represent the object.REQRESIZE The REQRESIZE structure contains the requested size of a rich edit control. A rich edit control sends this structure to its parent window as part of an EN_REQUESTRESIZE notification message.SELCHANGE The SELCHANGE structure contains information associated with an EN_SELCHANGE notification message. A rich edit control sends this notification to its parent window when the current selection changes.SETTEXTEX The SETTEXTEX structure specifies which code page (if any) to use in setting text, whether the text replaces all the text in the control or just the selection, and whether the undo state is to be preserved.TEXTRANGE The TEXTRANGE structure receives a range of text from a rich edit control. This structure is filled in by the EM_GETTEXTRANGE message. The buffer pointed to by the lpstrText member must be large enough to receive all characters and the terminating null character.
The BIDIOPTIONS structure contains bidirectional information about a rich edit control. This structure is used by the EM_GETBIDIOPTIONS and EM_SETBIDIOPTIONS messages to get and set the bidirectional information for a control.
The CHARFORMAT structure contains information about character formatting in a rich edit control.
Rich Edit 2.0: The CHARFORMAT2 structure is a Rich Edit 2.0 extension of the CHARFORMAT structure. Rich Edit 2.0 and later allows you to use either structure with the EM_GETCHARFORMAT and EM_SETCHARFORMAT messages.
The CHARFORMAT2 structure contains information about character formatting in a rich edit control. CHARFORMAT2 is a Rich Edit 2.0 extension of the CHARFORMAT structure. Rich Edit 2.0 allows you to use either structure with the EM_GETCHARFORMAT and EM_SETCHARFORMAT messages.
The CHARRANGE structure specifies a range of characters in a rich edit control.
If the cpMin and cpMax members are equal, the range is empty. The range includes everything if cpMin is 0 and cpMax is
The COMPCOLOR structure contains color settings for a composition string.
The EDITSTREAM structure contains information that an application passes to a rich edit control in a EM_STREAMIN or EM_STREAMOUT message. The rich edit control uses the information to transfer a stream of data into or out of the control.
The ENCORRECTTEXT structure contains information about the selected text to be corrected.
The ENDROPFILES structure contains information associated with an EN_DROPFILES notification message. A rich edit control sends this notification message when it receives a WM_DROPFILES message.
The ENLINK structure contains information about an EN_LINK notification message from a rich edit control.
The ENLOWFIRTF structure contains information about an unsupported RTF keyword in a Rich Edit control.
The ENOLEOPFAILED structure contains information about a failed operation.
The ENPROTECTED structure contains information associated with an EN_PROTECTED notification message. A rich edit control sends this notification when the user attempts to edit protected text.
The ENSAVECLIPBOARD structure contains information about objects and text on the clipboard.
The FINDTEXT structure contains information about a search operation in a rich edit control. This structure is used with the EM_FINDTEXT message.
The FINDTEXTEX structure contains information about text to search for in a rich edit control. This structure is used with the EM_FINDTEXTEX message.
The FORMATRANGE structure contains information that a rich edit control uses to format its output for a particular device. This structure is used with the EM_FORMATRANGE message.
The GETTEXTEX structure contains information about an operation to get text from a rich edit control. This structure is passed in the wParam in the EM_GETTEXTEX message.
The GETTEXTLENGTHEX structure contains information about how the text length of a rich edit control should be calculated. This structure is passed in the wParam in the EM_GETTEXTLENGTHEX message.
The HYPHENATEINFO structure contains information about hyphenation in a Rich Edit control.
The HYPHRESULT structure contains information about the result of hyphenation in a Rich Edit control.
The IMECOMPTEXT structure contains information about the composition text in a Rich Edit control.
The MSGFILTER structure contains information about a keyboard or mouse event. A rich edit control sends this structure to its parent window as part of an EN_MSGFILTER notification message, enabling the parent to change the message or prevent it from being processed.
The OBJECTPOSITIONS structure contains object position information.
The PARAFORMAT structure contains information about paragraph formatting attributes in a rich edit control. This structure is used with the EM_GETPARAFORMAT and EM_SETPARAFORMAT messages.
In Rich Edit 2.0, the PARAFORMAT2 structure is a Rich Edit 2.0 extension of the PARAFORMAT structure. Rich Edit 2.0 allows you to use either structure with EM_GETPARAFORMAT and EM_SETPARAFORMAT.
The PARAFORMAT2 structure contains information about paragraph formatting attributes in a rich edit control. PARAFORMAT2 is a Rich Edit 2.0 extension of the PARAFORMAT structure. Rich Edit 2.0 allows you to use either structure with the EM_GETPARAFORMAT and EM_SETPARAFORMAT messages.
The PUNCTUATION structure contains information about the punctuation used in a rich edit control.
The REOBJECT structure contains information about an object.
The REPASTESPECIAL structure contains information identifying whether the display aspect of a pasted object should be based on the content of the object or the icon that represent the object.
The REQRESIZE structure contains the requested size of a rich edit control. A rich edit control sends this structure to its parent window as part of an EN_REQUESTRESIZE notification message.
The SELCHANGE structure contains information associated with an EN_SELCHANGE notification message. A rich edit control sends this notification to its parent window when the current selection changes.
The SETTEXTEX structure specifies which code page (if any) to use in setting text, whether the text replaces all the text in the control or just the selection, and whether the undo state is to be preserved.
The TEXTRANGE structure receives a range of text from a rich edit control. This structure is filled in by the EM_GETTEXTRANGE message. The buffer pointed to by the lpstrText member must be large enough to receive all characters and the terminating null character.
Rich Edit Control Event Mask Flags The event mask specifies which notification messages a rich edit control sends to its parent window. The event mask can be none or a combination of these values. Rich Edit Control Styles The following window styles are unique to rich edit controls.
The event mask specifies which notification messages a rich edit control sends to its parent window. The event mask can be none or a combination of these values.
The following window styles are unique to rich edit controls.