ES_NOHIDESEL top-level constant
int
const ES_NOHIDESEL
Negates the default behavior for an edit control. The default behavior hides the selection when the control loses the input focus and inverts the selection when the control receives the input focus. If you specify ES_NOHIDESEL, the selected text is inverted, even if the control does not have the focus.
Implementation
const ES_NOHIDESEL = 0x0100;