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Thread: Context Menu - Multi Selected Files - One Instance

  1. Jan 9th, 2008, 02:49 PM #1
    Liquid Metal
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    Context Menu - Multi Selected Files - One Instance

    I created an item in the context menu of Window Explorer. I hooked the exe to:

    HKEY_CLASSES_ROOT\*\SHELL
    HKEY_CLASSES_ROOT\Directory\shell
    HKEY_CLASSES_ROOT\Folder\shell

    It works fine on single files!

    Only problem is when I select multiple files, it runs multiple instance of the exe hooked to that context menu.

    How can I make it so that it take in all selected files as parameters but only fires off the instance only once? Similar to a software called "Beyond Compare".

    Does it have to do something with the registry - Reg_Multi_SZ with %1?
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  2. Jan 9th, 2008, 03:41 PM #2
    westconn1
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    Re: Context Menu - Multi Selected Files - One Instance

    try %1 %2 %3 etc
    i do my best to test code works before i post it, but sometimes am unable to do so for some reason, and usually say so if this is the case.
    Note code snippets posted are just that and do not include error handling that is required in real world applications, but avoid On Error Resume Next

    dim all variables as required as often i have done so elsewhere in my code but only posted the relevant part

    come back and mark your original post as resolved if your problem is fixed
    pete
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  3. Jan 9th, 2008, 04:52 PM #3
    Liquid Metal
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    Re: Context Menu - Multi Selected Files - One Instance

    What if the number of files being selected can vary - nth?
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  4. Jan 10th, 2008, 12:37 PM #4
    Liquid Metal
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    Re: Context Menu - Multi Selected Files - One Instance

    Quote Originally Posted by westconn1
    try %1 %2 %3 etc
    According to this link that RobDogg provided:
    http://msdn2.microsoft.com/en-us/lib...20(VS.85).aspx

    %2 %3 %4 are backward compatibility for Window 3.1 for printers and other stuffs.
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