Quick question about winAPI resource files & icons

This is a discussion on Quick question about winAPI resource files & icons within the Windows Programming forums, part of the Platform Specific Boards category; Tutorial: Using Resources The above tutorial has some very nice explanations and I feel pretty good with the content it ...

  1. #1
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    Quick question about winAPI resource files & icons

    Tutorial: Using Resources

    The above tutorial has some very nice explanations and I feel pretty good with the content it taught me; however, one thing I'm not too clear on is:

    1) What are these integers representing? E.g:

    Code:
    #define IDI_ICON 101
    What does the int 101 stand for?

    2) What actually goes within a resource file? Like in the tutorial, it's example was: resource.h - however, it never actually seemed to talk about that file itself and what actually gets put in it.

    Thanks,
    Justin

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    "...What does the int 101 stand for?..."

    Resources are represented by integers, and you define an integer with an easily readable value

    Code:
    //resource file *rc
    MY_APPLICATION_ICON ICON "my_application_icon.ico"
    
    //definitions file
    #define MY_APPLICATION_ICON 101
    
    //whatever where you need in application code
    LoadIcon(hInstance, MAKEINTRESOURCE(MY_APPLICATION_ICON));
    Is easier and more understandable to use MY_APPLICATION_ICON as reference to my application icon that a 101 value. That value is arbitrary (it can be 4567 as well if you want), just do not repeat it by identifing resources.

    The trick I do is (i.ex.): knowing that I usually won't load more that 100 objects of each resource type (BITMAP, ICON, etc..), just use the range from 100-199 for icons, 200-299 to bitmaps, and so on.

    Hope that helps
    Niara
    Last edited by Niara; 01-04-2013 at 12:27 PM.

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    "...What actually goes within a resource file?..."

    Well, on the resource files goes the resources

    Heres a sample from both files:

    Code:
    //definitions.h
    #define ARBITRARY_IMAGE_ID 100
    #define QUIT_MENU_BUTTON 200
    Code:
    //resource.rc
    #include <windows.h>
    #include "definitions.h"
    
    ARBITRARY_IMAGE_ID BITMAP "image.bmp"
    
    //can mix with menu templates
    menu MENU
    BEGIN
        POPUP "&File"
        BEGIN
            MENUITEM "&Quit", QUIT_MENU_BUTTON
        END
    END
    Niara
    Last edited by Niara; 01-04-2013 at 12:35 PM.

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    Thanks! I really appreciate the replies, and definitely understand it a bit more. Thanks.

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