diff --git a/uppsrc/RichEdit/RichEdit.h b/uppsrc/RichEdit/RichEdit.h
index 0590c6892..bed4f16e6 100644
--- a/uppsrc/RichEdit/RichEdit.h
+++ b/uppsrc/RichEdit/RichEdit.h
@@ -92,6 +92,7 @@ public:
 	virtual Value Format(const Value& v) const;
 	virtual void  SetData(const Value& v);
 	virtual bool  Key(dword key, int repcnt);
+	virtual void  MouseWheel(Point p, int zdelta, dword keyflags);
 
 private:
 	SpinButtons spin;
diff --git a/uppsrc/RichEdit/UnitEdit.cpp b/uppsrc/RichEdit/UnitEdit.cpp
index 04c98621e..1b9cd4a2a 100644
--- a/uppsrc/RichEdit/UnitEdit.cpp
+++ b/uppsrc/RichEdit/UnitEdit.cpp
@@ -34,7 +34,7 @@ void UnitEdit::Read(double& d, int& u) const
 	u = unit;
 	d = Null;
 	if(s && *s) {
-		char *e;
+		const char *e;
 		int sign = 1;
 		for(;;) {
 			if(*s == '-' && sgn)
@@ -44,7 +44,10 @@ void UnitEdit::Read(double& d, int& u) const
 				break;
 			s++;
 		}
-		d = sign * strtod(s, &e);
+		d = ScanDouble(s, &e);
+		if(IsNull(d))
+			return;
+		d *= sign;
 		if(e == s) {
 			d = Null;
 			return;
@@ -104,6 +107,11 @@ bool UnitEdit::Key(dword key, int repcnt)
 	return EditField::Key(key, repcnt);
 }
 
+void UnitEdit::MouseWheel(Point p, int zdelta, dword keyflags)
+{
+	Spin(zdelta < 0 ? -1 : 1);
+}
+
 void UnitEdit::Spin(int delta)
 {
 	double q;