>Dear Sir,
>
>Please write some codes to according to your advice.
>I shall be very thankful to you.
>
>Thanks in advance

In your first form's button that calls the second form:

DO FORM f2 WITH thisform

In your second form, you need code in 2 places. You need to have the oCallingForm property added in the designer, or you can have a line of code like thisform.AddProperty("oCallingForm") if you're using VFP6 or above. You need code in the Init:

LPARAMETERS toCallingForm
thisform.oCallingForm = toCallingForm
thisform.oCallingForm.Visible = .f.

and in the Unload:

thisform.oCallingForm.Visible = .t.

No timers involved, and the focus is still on form 1 button that called form 2 when you return.

Or, another way to achieve the same effect without needing to pass a parameter to the second form (this code goes in form2.Load):

thisform.oCallingForm = _SCREEN.ActiveForm
thisform.oCallingForm.Visible = .f.

You still need the oCallingForm property and the code in the Unload.

Or, if you don't really need to hide the first form, you can just make your second form modal.