TM_PLAINTEXT = 1

TM_RICHTEXT = 2

TM_SINGLELEVELUNDO = 4

TM_MULTILEVELUNDO = 8

TM_SINGLECODEPAGE = 16

TM_MULTICODEPAGE = 32

TM_PLAINTEXT

Indicates plain-text mode, in which the control is similar to a standard edit control. For more information about plain-text mode, see the following Remarks section.

TM_RICHTEXT

Indicates rich-text mode, in which the control has the standard rich edit functionality. Rich-text mode is the default setting.

TM_SINGLELEVELUNDO

The control allows the user to undo only the last action in the undo queue.

TM_MULTILEVELUNDO

The control supports multiple undo actions. This is the default setting. Use the EM_SETUNDOLIMIT message to set the maximum number of undo actions.

TM_SINGLECODEPAGE

The control only allows the English keyboard and a keyboard corresponding to the default charset. For example, you could have Greek and English. Note that this prevents Unicode text from entering the control. For example, use this value if a Microsoft Rich Edit control must be restricted to ANSI text.

TM_MULTICODEPAGE

The control allows multiple code pages and Unicode text into the control. This is the default setting.