Certain number of characters in an edit

[Gintaras]

You can use EN_CHANGE event. Like this
Function Dialog63

Code:

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\Dialog_Editor
function# hDlg message wParam lParam
if(hDlg) goto messages

str controls = "3"
str e3
if(!ShowDialog("Dialog63" &Dialog63 &controls)) ret

;BEGIN DIALOG
;0 "" 0x90C80A44 0x100 0 0 223 135 "Dialog"
;1 Button 0x54030001 0x4 120 116 48 14 "OK"
;2 Button 0x54030000 0x4 170 116 48 14 "Cancel"
;3 Edit 0x54030080 0x200 8 12 96 14 ""
;END DIALOG
;DIALOG EDITOR: "" 0x2030001 "" "" ""

ret
;messages
sel message
,case WM_INITDIALOG
,case WM_DESTROY
,case WM_COMMAND goto messages2
ret
;messages2
sel wParam
,case EN_CHANGE<<16|3
,str s.getwintext(id(3 hDlg))
,if(s.len>7) s.fix(7); s.setwintext(id(3 hDlg))
,case IDOK
,case IDCANCEL
ret 1