If text is selected do action

[Gintaras]

Function Dialog72

Code:

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

str controls = "3 4"
str rea3 cb4
if(!ShowDialog("" &Dialog72 &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 RichEdit20A 0x54233044 0x200 2 0 218 92 ""
;4 ComboBox 0x54230243 0x0 4 104 96 213 ""
;END DIALOG
;DIALOG EDITOR: "" 0x2030009 "" "" ""

ret
;messages
sel message
,case WM_INITDIALOG
,EnableWindow id(4 hDlg) 0
,SendMessage id(3 hDlg) EM_SETEVENTMASK 0 ENM_SELCHANGE
,case WM_DESTROY
,case WM_COMMAND goto messages2
,case WM_NOTIFY goto messages3
ret
;messages2
sel wParam
,case IDOK
,case IDCANCEL
ret 1
;messages3
NMHDR* nh=+lParam
sel nh.code
,case EN_SELCHANGE
,SELCHANGE* sc=+nh
,sel nh.idFrom
,,case 3
,,EnableWindow id(4 hDlg) sc.chrg.cpMax!=sc.chrg.cpMin