EM_SETPASSWORDCHAR top-level constant
int
const EM_SETPASSWORDCHAR
Sets or removes the password character for an edit control.
When a password character is set, that character is displayed in place of the characters typed by the user. You can send this message to either an edit control or a rich edit control.
To learn more, see learn.microsoft.com/windows/win32/Controls/em-setpasswordchar.
Implementation
const EM_SETPASSWORDCHAR = 204;