enable disabled menu item.

This is a discussion on enable disabled menu item. within the Windows Programming forums, part of the Platform Specific Boards category; I need a technic how to enable and/or click on a disabled menu item of MDI style program (not my ...

  1. #1
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    enable disabled menu item.

    I need a technic how to enable and/or click on a disabled menu item of MDI style program (not my program, and I don't have sources). Item is a subitem in File menu. OS is win2000pro. It is possible to find windowproc of this process and post appropriate message as if it was sent by this subitem?

  2. #2
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    What API are you using?
    In MFC I use:

    CMenu *menu = (CMenu* )GetMenu()
    // This will disable
    menu->EnableMenuItem( ID_MENU /*your menu ID*/, MF_GRAYED );

    // This will enable
    menu->EnableMenuItem( ID_MENU /*your menu ID*/, MF_ENABLED );
    Don't talk to strangers, unless they offer candy.

  3. #3
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    This was not newbie question. Of course I know how to enable/disable menu Items using winapi, MFC, etc.
    Task: Imagine you have program that has some menu items grayed. This prevents your user from accessing some advanced features available to full version owners. I was wondering if it will allow me to use these features if I enable grayed items from external program. It was easy to find all calls to disable function and replacing them with NOP (0x90).

  4. #4
    Just one more wrong move. -KEN-'s Avatar
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    possibly...why don't you try it?

  5. #5
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    You want to break into shareware / demo software and steal access to full version functions.

    So you don't have to pay people like me for their work.

    And you want people like me to tell you how to do it.
    "Man alone suffers so excruciatingly in the world that he was compelled to invent laughter."
    Friedrich Nietzsche

    "I spent a lot of my money on booze, birds and fast cars......the rest I squandered."
    George Best

    "If you are going through hell....keep going."
    Winston Churchill

  6. #6
    Registered User johnnie2's Avatar
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    And why would you include all the features of a program in a demo and assume that simply greying out a menu option would provide protection against a determined analytical mind? Unless, of course, the demo is on a timed basis, in which case you can disregard that entire statement.
    "Optimal decisions, once made, do not need to be changed." - Robert Sedgewick, Algorithms in C

  7. #7
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    Hey, people, don't think that I'm trying to crack some program with your help. Remember that real cracker never ask questions.
    Sometimes I hear very clever explanations on how programs are working. So what I wanted is to get deeper understanding what happen if grayed out menu item will be reenabled externally? Will it reenable function that is behind this menu item?
    As well as many of you I'm writing and selling programs so stealing someone's money is not my way of getting credits.


  8. #8
    train spotter
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    >>Will it reenable function that is behind this menu item?

    Yes, a message that could not be generated due to the ctrl being disabled will now flow to the callback.
    In my code the function would check your access level and then kick you out again.
    "Man alone suffers so excruciatingly in the world that he was compelled to invent laughter."
    Friedrich Nietzsche

    "I spent a lot of my money on booze, birds and fast cars......the rest I squandered."
    George Best

    "If you are going through hell....keep going."
    Winston Churchill

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