fShowState
else if (fShowState == 0 && kMsgHide && !IsHidden())
if ((how == kMsgShow && fShowState < kMaxShowState)
|| (how == kMsgHide && fShowState > kMinShowState)) {
float factor = 1.f * fShowState / kMaxShowState;
if ((how == kMsgShow && fShowState >= kMaxShowState)
|| (how == kMsgHide && fShowState <= kMinShowState))
fShowState += how == kMsgShow ? 1 : -1;
int32 fShowState;