Re: [Dev-C++] IDC_NUMBER, windows programming

[Daniel G. <sp...@ho...>]

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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