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Author Topic: Unknown Run-Time error : 087.  (Read 1909 times)

Uli

  • Newbie
  • Posts: 5
Unknown Run-Time error : 087.
« on: January 12, 2018, 08:47:08 pm »
Hi,

during run-time of a program written with Lazarus v1.4.4 under Win XP SP3 I get a
Unknown Run-Time error : 087.

Where can I find a explanation for it?

Thanks.

Uli
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taazz

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  • Posts: 5368
Re: Unknown Run-Time error : 087.
« Reply #1 on: January 12, 2018, 08:52:21 pm »
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Good judgement is the result of experience … Experience is the result of bad judgement.

OS : Windows 7 64 bit
Laz: Lazarus 1.4.4 FPC 2.6.4 i386-win32-win32/win64

jamie

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  • Posts: 6130
Re: Unknown Run-Time error : 087.
« Reply #2 on: January 12, 2018, 11:39:16 pm »
That's a "Invalid Parameter". which means something made its way to the windows API with a
invalid parameter in a function call.

 It could be a lot of things, like garbage values getting passed to a function in laz or what ever
that is simply passing it on to the API..

 You need to run it under debug so you can get a break point on and check the stack to see
who called it.
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The only true wisdom is knowing you know nothing
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