这个问题很简单，用下面这和函数就可以做到！ CWnd::ModifyStyle BOOL ModifyStyle( DWORD dwRemove, DWORD dwAdd, UINT nFlags = 0 ); 先让我们回顾一下CEdit 的内容，cedit 风格有以下几种 其中可以看到要想给edit 加上自动回卷的功能，只能修必一个它的属性就可以啦 代码如下，在适当的地方插入 CEdit* pEdit=&你的edit类对象 pEdit->ModifyStyle(NULL,ES_AUTOHSCROLL);Edit Styles ES_AUTOHSCROLL Automatically scrolls text to the right by 10 characters when the user types a character at the end of the line. When the user presses the ENTER key, the control scrolls all text back to position 0. ES_AUTOVSCROLL Automatically scrolls text up one page when the user presses ENTER on the last line. ES_CENTER Centers text in a single-line or multiline edit control. ES_LEFT Left-aligns text in a single-line or multiline edit control. ES_LOWERCASE Converts all characters to lowercase as they are typed into the edit control. ES_MULTILINE Designates a multiple-line edit control. (The default is single line.) If the ES_AUTOVSCROLL style is specified, the edit control shows as many lines as possible and scrolls vertically when the user presses the ENTER key. If ES_AUTOVSCROLL is not given, the edit control shows as many lines as possible and beeps if ENTER is pressed when no more lines can be displayed. If the ES_AUTOHSCROLL style is specified, the multiple-line edit control automatically scrolls horizontally when the caret goes past the right edge of the control. To start a new line, the user must press ENTER. If ES_AUTOHSCROLL is not given, the control automatically wraps words to the beginning of the next line when necessary; a new line is also started if ENTER is pressed. The position of the wordwrap is determined by the window size. If the window size changes, the wordwrap position changes and the text is redisplayed. Multiple-line edit controls can have scroll bars. An edit control with scroll bars processes its own scroll-bar messages. Edit controls without scroll bars scroll as described above and process any scroll messages sent by the parent window. ES_NOHIDESEL Normally, an edit control hides the selection when the control loses the input focus and inverts the selection when the control receives the input focus. Specifying ES_NOHIDESEL deletes this default action. ES_OEMCONVERT Text entered in the edit control is converted from the ANSI character set to the OEM character set and then back to ANSI. This ensures proper character conversion when the application calls the AnsiToOem Windows function to convert an ANSI string in the edit control to OEM characters. This style is most useful for edit controls that contain filenames. ES_PASSWORD Displays all characters as an asterisk (*) as they are typed into the edit control. An application can use the SetPasswordChar member function to change the character that is displayed. ES_RIGHT Right-aligns text in a single-line or multiline edit control. ES_UPPERCASE Converts all characters to uppercase as they are typed into the edit control. ES_READONLY Prevents the user from entering or editing text in the edit control. ES_WANTRETURN Specifies that a carriage return be inserted when the user presses the ENTER key while entering text into a multiple-line edit control in a dialog box. Without this style, pressing the ENTER key has the same effect as pressing the dialog box’s default pushbutton. This style has no effect on a single-line edit control.
其实，如果说只要换行的话，不用修改width了。
什么时候要用了，再在程序中，修改输入框的属性既可。
CWnd::ModifyStyle
BOOL ModifyStyle( DWORD dwRemove, DWORD dwAdd, UINT nFlags = 0 );
先让我们回顾一下CEdit 的内容，cedit 风格有以下几种
其中可以看到要想给edit 加上自动回卷的功能，只能修必一个它的属性就可以啦
代码如下，在适当的地方插入
CEdit* pEdit=&你的edit类对象
pEdit->ModifyStyle(NULL,ES_AUTOHSCROLL);Edit Styles
ES_AUTOHSCROLL Automatically scrolls text to the right by 10 characters when the user types a character at the end of the line. When the user presses the ENTER key, the control scrolls all text back to position 0.
ES_AUTOVSCROLL Automatically scrolls text up one page when the user presses ENTER on the last line.
ES_CENTER Centers text in a single-line or multiline edit control.
ES_LEFT Left-aligns text in a single-line or multiline edit control.
ES_LOWERCASE Converts all characters to lowercase as they are typed into the edit control.
ES_MULTILINE Designates a multiple-line edit control. (The default is single line.) If the ES_AUTOVSCROLL style is specified, the edit control shows as many lines as possible and scrolls vertically when the user presses the ENTER key. If ES_AUTOVSCROLL is not given, the edit control shows as many lines as possible and beeps if ENTER is pressed when no more lines can be displayed. If the ES_AUTOHSCROLL style is specified, the multiple-line edit control automatically scrolls horizontally when the caret goes past the right edge of the control. To start a new line, the user must press ENTER. If ES_AUTOHSCROLL is not given, the control automatically wraps words to the beginning of the next line when necessary; a new line is also started if ENTER is pressed. The position of the wordwrap is determined by the window size. If the window size changes, the wordwrap position changes and the text is redisplayed. Multiple-line edit controls can have scroll bars. An edit control with scroll bars processes its own scroll-bar messages. Edit controls without scroll bars scroll as described above and process any scroll messages sent by the parent window.
ES_NOHIDESEL Normally, an edit control hides the selection when the control loses the input focus and inverts the selection when the control receives the input focus. Specifying ES_NOHIDESEL deletes this default action.
ES_OEMCONVERT Text entered in the edit control is converted from the ANSI character set to the OEM character set and then back to ANSI. This ensures proper character conversion when the application calls the AnsiToOem Windows function to convert an ANSI string in the edit control to OEM characters. This style is most useful for edit controls that contain filenames.
ES_PASSWORD Displays all characters as an asterisk (*) as they are typed into the edit control. An application can use the SetPasswordChar member function to change the character that is displayed.
ES_RIGHT Right-aligns text in a single-line or multiline edit control.
ES_UPPERCASE Converts all characters to uppercase as they are typed into the edit control.
ES_READONLY Prevents the user from entering or editing text in the edit control.
ES_WANTRETURN Specifies that a carriage return be inserted when the user presses the ENTER key while entering text into a multiple-line edit control in a dialog box. Without this style, pressing the ENTER key has the same effect as pressing the dialog box’s default pushbutton. This style has no effect on a single-line edit control.
pEdit->ModifyStyle(WS_HSCROLL|ES_AUTOVSCROLL,ES_AUTOVSCROLL);