setAlwaysOn method
Implementation
@override
void setAlwaysOn(final bool turnOn) {
if (true == turnOn) {
final style = GetWindowLongPtr(_windowId, GWL_STYLE);
if (style & WS_MINIMIZE > 0) ShowWindow(_windowId, SW_RESTORE);
_setTopMost(_windowId);
_setTop(_windowId);
} else {
_setNoTopMost(_windowId);
}
}