Unsupported Edit Control Functionality
Rich edit controls support most but not all of the functionality of multiline edit controls. This section lists the edit control messages and window styles that are not supported by rich edit controls.
The following messages are processed by edit controls but not by rich edit controls.
| Unsupported message | Comments |
| EM_FMTLINES | Not supported. |
| EM_GETHANDLE | Rich edit controls do not store text as a simple array of characters. |
| EM_GETMARGINS | Not supported. |
| EM_GETPASSWORDCHAR | The ES_PASSWORD style is not supported. |
| EM_SETHANDLE | Rich edit controls do not store text as a simple array of characters. |
| EM_SETMARGINS | Not supported. |
| EM_SETPASSWORDCHAR | The ES_PASSWORD style is not supported. |
| EM_SETRECTNP | Not supported. |
| EM_SETTABSTOPS | The EM_SETPARAFORMAT message is used instead. |
| WM_CTLCOLOR | The EM_SETBKGNDCOLOR message is used instead. |
| WM_GETFONT | The EM_GETCHARFORMAT message is used instead. |
The following window styles are used with multiline edit controls but not with rich edit controls:
| ES_LOWERCASE | ES_PASSWORD |
| ES_OEMCONVERT | ES_UPPERCASE |