#219 Wrong Integer Type Returned

[Anonymous]

Hello.

I have problem with reading dword registry values that are larger than int32. The code simply returns -1.

For example I have a dword value for FileSizeLimitInBytes as 0xffffffff (uint32 - 4294967295), however, TWAPI is treating the value as int32 and returns -1.

[ibakhmoutski]

Forgot to point to the MS doc page for DWORD.

https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-dtyp/262627d8-3418-4627-9218-4ffe110850b2?redirectedfrom=MSDN

[Ashok P. Nadkarni]

Thanks for the report. It might a bit of time before I put out a new release though. Have you tried reading using Tcl's registry command? As a work around in the meanwhile perhaps you can do a

format 0x%x $regdwordvalue

when you read.

[ibakhmoutski]

I appreciate your quick response.

Unfortunately, Tcl's registry command returns -1 as well.

However, the workaround you provided works fine with a minor modification. I needed a decimal number to calculate the max file size.

format %u $regdwordvalue

I didn't realize that the value of -1 can be converted, I thought it was just an error.

Thank you for the help.

[Anonymous]

Finally revisiting this, I agree that the value should be unsigned. However, not just Tcl's registry command, but .Net as well (see https://github.com/dotnet/runtime/issues/24954) treat REG_DWORD as signed. So I am hesitant to change it to return unsigned values. Closing.