RegisterClassExA getLastError of 87 ?

This is a discussion on RegisterClassExA getLastError of 87 ? within the Windows Programming forums, part of the Platform Specific Boards category; Greetings; For RegisterClassExA,@rc I am getting a getLastError of 87. Is there a listing somewhere of what API error codes ...

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    RegisterClassExA getLastError of 87 ?

    Greetings;
    For RegisterClassExA,@rc
    I am getting a getLastError of 87.
    Is there a listing somewhere of what API error codes mean?
    Else, pls, what does error code 87, indicate?
    Thanks...vmars316

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    and the hat of wrongness Salem's Avatar
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    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
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    train spotter
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    One of Visual Studio's Tools is 'Error Lookup' (type in the number and get the text).
    "Man alone suffers so excruciatingly in the world that he was compelled to invent laughter."
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    put $err, hr in your watch window. Place a breakpoint at the function, step over it and check the error code.

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    C++まいる!Cをこわせ! Elysia's Avatar
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    In Visual Studio 2005+, you only need to put the variable that stores the hresult itself in the watch window to see the error message it means. Regardless, Salem's link has another link that points to system error codes. There is your reference listing.
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    io.h certainly IS included in some modern compilers. It is no longer part of the standard for C, but it is nevertheless, included in the very latest Pelles C versions.
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    You mean it's included as a crutch to help ancient programmers limp along without them having to relearn too much.

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    Ah yes, this is a great help:

    windows system errorCodes
    System Error Codes (Windows)

    Thanks...vmars

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