 | | LEGO Tower API and Filenames
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All, I've been messing with the tower API and have discovered what I think is an error in the docs... Fisrt off, the API help file tells us to open "\.\LEGOTOWERx" In fact, the file name must look like this: "\\.\LEGOTOWERx" Even worse, the filename (...) (21 years ago, 4-Feb-04, to lugnet.robotics, lugnet.robotics.rcx.pbforth)
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| | Re: LEGO Tower API and Filenames
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(...) Right with \\.\...., but at least with Win98SE the port is correctly found. Great to here you Ralph. (21 years ago, 5-Feb-04, to lugnet.robotics, lugnet.robotics.rcx.pbforth)
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| | RE: LEGO Tower API and Filenames
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(...) Claude, I've written a little C program that tries to open "\\.\LEGOTOWER1" and on otherwise identical computers (except one is running Win98SE and the othre runs Win2K) only the Win2K machine can open the file. Of course, the LEGO tools work (...) (21 years ago, 5-Feb-04, to lugnet.robotics, lugnet.robotics.rcx.pbforth)
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| | Re: LEGO Tower API and Filenames
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(...) Ralph, I retried it with a Delphi-program that I wrote some time ago. This opens "\\.\LEGOTOWER1" without any problem: ... const DEFAULT_PORT_NAME = '\\.\LEGOTOWER1'; ... function USB_Open():Longint;stdcall; var hFh:Longint; begin (...) (21 years ago, 5-Feb-04, to lugnet.robotics, lugnet.robotics.rcx.pbforth)
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| | Re: LEGO Tower API and Filenames
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(...) Did you escape the backslashes in the C string? CreateFile("\\\\.\\LEGOTOWER1", GENERIC_READ | GENERIC_WRITE, 0, 0, OPEN_EXISTING, 0, 0); Just a thought... it's easy to forget sometimes. Mark (21 years ago, 5-Feb-04, to lugnet.robotics, lugnet.robotics.rcx.pbforth)
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| | RE: LEGO Tower API and Filenames
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(...) Yes, I escaped the characters. The identical code works on the Win2K machine and does not work on the win98SE machine with identical LEGO drivers installed. Hmmmm Ralph (21 years ago, 5-Feb-04, to lugnet.robotics, lugnet.robotics.rcx.pbforth)
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| | Re: LEGO Tower API and Filenames
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(...) One other thing you could try is to physically disconnect and then reconnect the USB tower from the system. I've found that (on Win98 at least) the driver sometimes freezes up and won't open until after I do that little dance. Also, you could (...) (21 years ago, 6-Feb-04, to lugnet.robotics, lugnet.robotics.rcx.pbforth)
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