Problem with check box status.

[TNH]

Hi
I wrote a small program for checking check box status.
When i push the "Button" it is checking the check box status and it is all the time 1.
It suppose to be 0 if check box unchecked. 
Can somebody please help me with this issue?
Thanks

Code:

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str dd=
 BEGIN DIALOG
 0 "" 0x90C80AC8 0x0 0 0 180 60 "Dialog" "4"
 3 Button 0x54032000 0x0 8 36 48 14 "Button"
 4 Button 0x54012003 0x0 8 16 48 10 "Check"
 1 Button 0x54030001 0x4 64 36 48 14 "OK"
 2 Button 0x54030000 0x4 120 36 48 14 "Cancel"
 END DIALOG
 DIALOG EDITOR: "" 0x2040A00 "*" "" "" ""

str controls = "4"
str c4Che
if(!ShowDialog(dd &sub.DlgProc &controls)) ret


#sub DlgProc
function# hDlg message wParam lParam

sel message
case WM_INITDIALOG
case WM_DESTROY
case WM_COMMAND goto messages2
ret
 messages2
sel wParam
case IDOK
case IDCANCEL
case 3
int cChecked=val(c4Che); out "Check: %s" iif(cChecked "checked" "unchecked")
out cChecked
ret 1