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Thread: A new (and better?) way to Subclass in VB 6!

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    Cool A new (and better?) way to Subclass in VB 6!

    *** CODE ATTACHED TO THIS POST ***

    Hi, I just figured out what may be a really great way to
    Subclass in VB 6. Here are the some of the features of this 'alpha'
    product.

    * Every handle you subclass gets a UNIQUE WindowProc ().
    By 'unique' I mean the actual binary code for every
    WindowProc is within it's own dynamically allocated chunk
    of memory.

    * Pressing the 'Stop' button does not crash the IDE. In fact
    you can use breakpoints, step through code, and basically
    perform all normal debugging operations.

    * The implementation is an event-driven class. You can
    respond before and after a window handle is subclassed
    and before and after a WindowProc () is processed. If you
    happen to respond before then you may also optinally
    change the data before it reaches the original WindowProc ()
    OR you may simply cancel the original WindowProc () (of
    course meaning that you are handling the message 100%
    on your own).

    The attached ZIP file contains the class' code and a demo
    application (code of course). I apologize for the lack of comments,
    and the occasional un-used function... but this is hot off the grill.
    To install and run everything:

    * Unzip the attached .zip file to a location of your choosing.

    * Compile \<Zip Location>\ldsClasser\ldsClasser.vbp (this is
    the actual subclasser). A DLL will now exist (and the
    compilation should have registered it). Note, when you first
    open up the project you will get (an expected) error
    message 'Unable to set version compatible component...'.
    You can safely igore this because I had the project set to
    binary compatibility in my environment.

    * Compile \<Zip Location>\MITestApp\MultiTestAppProject.vbp
    (this is the demo program). Note, you will need to change
    the reference to the location of the newly compiled DLL or
    you will get a missing-reference compilation error.

    * Execute MultiTestAppProject.exe

    My intention (aside from sharing this 'hopefully' new discovery)
    is to get feedback from all you VB Subclassing maniacs out there...
    whether you like it, hate it, think it needs to work differently,
    think it's dangerous... (you get the point).

    Thanks,

    -CC
    Attached Files Attached Files
    Last edited by Crunchy Cat; Sep 29th, 2002 at 01:12 AM.

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