Looks like a bug to me. The behavior has definitely changed between VFP8 and VFP9.

>Hi,
>bonjour,
>
>I should like a textbox for entry a hour.( ex 10H23)
>under vfp8 my code functioned well but any more under vfp9.
>
>that I badly made?
>
>

>
>**************************************************
>*-- Form:         form1 (c:\cdbk90\amline\form1.scx)
>*-- ParentClass:  form
>*-- BaseClass:    form
>*-- Time Stamp:   04/15/05 05:52:01 PM
>*
>DEFINE CLASS form1 AS form
>
>
>	DoCreate = .T.
>	Caption = "Form1"
>	Name = "Form1"
>
>
>	ADD OBJECT text1 AS textbox WITH ;
>		Format = "R", ;
>		Height = 23, ;
>		InputMask = "99H99", ;
>		Left = 216, ;
>		Top = 72, ;
>		Width = 100, ;
>		Name = "Text1"
>
>
>ENDDEFINE
>*
>*-- EndDefine: form1
>**************************************************
>
>

>
>Thank in advance
>
>bernhart