Your dialog is IDD_DIALOG but the controls don't have IDC identifiers, which
is odd. Is this generated or have you typed it in yourself?
Remember you can't use #define IDD_ etc. as a literal number, you use the
identifiers to send messages to controls (like SetDlgText()).
>From: "Jorge Abramian" <jab...@ma...>
>Reply-To: <jab...@ma...>
>To: <dev...@li...>
>Subject: [Dev-C++] IDC_NUMBER, windows programming
>Date: Fri, 27 Jun 2003 08:40:10 -0400
>
>Does anybody know why this piece of code does not work? It gives me an
>"invalid pointer operation".
>
>//this is part of main.h file
>
>#define IDD_ABOUT 100
>#define IDC_MAIN_TEXT 1001
>#define IDI_ICON 1
>#define IDD_DIALOG 600
>#define IDC_NUMBER 610
>........
>
>//this is part of the resource file
>
>600 DIALOG DISCARDABLE 0, 0, 300, 150
>STYLE WS_VISIBLE | WS_SYSMENU | WS_POPUP | WS_CAPTION | DS_MODALFRAME
>CAPTION "Dialog Box Example"
>FONT 8,"Helv"
>BEGIN
> ICON 1,5,11,17,20,20
> DEFPUSHBUTTON "&OK",IDOK,220,18,50,14
> PUSHBUTTON "&Cancel",IDCANCEL,220,35,50,14
> GROUPBOX "Random Numbers Generator Version 1.0",102,7,60,200,60
> CTEXT "dialog box example", 103,40,75,130,40
> LTEXT "Low Limit",103,7,10,50,8
> LTEXT "High Limit",103,7,20,50,8
> EDITTEXT IDC_NUMBER,150,7,21,14,ES_NUMBER
>.....
>Instead if I eliminate the "#define IDC_NUMBER 1100" line of the main.h
>file and make "EDITTEXT 610,150,7,21,14,ES_NUMBER" IT WORKS!!
>
>Thanks.
>
>JEA
>
>
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