PROMS/Volian.Controls.Library/DisplayRTB.cs

@@ -455,13 +455,15 @@ namespace Volian.Controls.Library
 				// add the character with its font depending on the char....
 				if (!IsControlChar)
 				{
-					if (e.KeyChar == '\b') return;   // return on backspace.
-					// check for symbol - how??
-					AddRtf(e.KeyChar.ToString());
+					if (e.KeyChar == '\b') return;   // return on backspace otherwise, get a block char
+					if (e.KeyChar == '-')
+						AddSymbol(@"\u8209?");
+					else
+						AddRtf(e.KeyChar.ToString());
+					e.Handled = true; // flag that it's been handled, otherwise, will get 2 chars.
 				}
 				IsControlChar = false;
 			}
-			e.Handled = true;  // flag that it's been handled, otherwise, will get 2 chars.
 		}
 		#endregion
 		#endregion