How Can I Disable a Delete Button if The Form is Blank

I have code to delete the current record on a form.  I want to be able to disable this button if the form is blank.

I have included the code for the record deletion.

How can I do this?

Thanks,
gdunn59

Private Sub cmdDelRec_Click()
On Error GoTo Err_cmdDelRec_Click
Dim rtn As String

DoCmd.SetWarnings False
    rtn = MsgBox("Are you sure you want to Cancel this record?", vbYesNo)
    If rtn = vbYes Then
        RunCommand acCmdDeleteRecord
        'DoCmd.GoToRecord , , acPrevious
        DoCmd.GoToRecord , , acNewRec
        Me.InquiryNum.SetFocus
        Me.Requery
    Else
        Cancel = True
        Me.InquiryNum.SetFocus
    End If

DoCmd.SetWarnings True

Exit_cmdDelRec_Click:
    Exit Sub

Err_cmdDelRec_Click:
    Cancel = True
    Resume Exit_cmdDelRec_Click
    
End Sub

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