Questions tagged [rubydl]
7 questions
6
votes
8 answers
How can I write a generic C function for calling a Win32 function?
To allow access to the Win32 API from a scripting language (written in C), I would like to write a function such as the following:
void Call(LPCSTR DllName, LPCSTR FunctionName,
LPSTR ReturnValue, USHORT ArgumentCount, LPSTR Arguments[])
which…
Matthew Murdoch
- 30,874
- 30
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4
votes
2 answers
I am familiar with Ruby /DL but not sure how to use the C function calls that have pointers for return parameters
I have this function in this Module
require 'dl'
require 'dl/import'
module LibCalendars
extend DL::Importer
dlload './cal2jd.o'
extern 'int iauCal2jd(int, int, int, double *, double *)'
end
How do I set this up in a Module to get access to…
Douglas G. Allen
- 2,203
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3
votes
3 answers
How do you use Ruby/DL? Is this right?
I am trying to write an interface between RSPEC (ruby flavoured BDD) and a Windows application. The application itself is written in an obscure language, but it has a C API to provide access. I've gone with Ruby/DL but am having difficulties…
Brett
- 129
- 2
- 10
2
votes
1 answer
No sound. Uses Ruby and winmm through RubyDL
Expected behavior: middle C played on one midi instrunment, then another. Actual behavior: a DL deprecation warning and no sound. Running Windows 7.
The code:
require "dl/import"
class LiveMIDI
ON = 0x90
OFF =0x80
PC = 0xc0
def…
Fluffy Ribbit
- 316
- 1
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1
vote
0 answers
Undefined Method With DL::Importer
The debugger states that the method message is undefined is it becuase it is nested in C and if so how do i change this
class LiveMIDI
module C
extend DL::Importer
dlload…
0
votes
3 answers
How do you return a variable in a C -> ruby interface?
A follow up to an earlier question, showing the part that fails when I try to get the error message from my target library:
require 'gt4r'
@@test_environment = "INCLUDE=C:\\graphtalk\\env\\aiadev\\config\\aiadev.ini"
@@normal_user =…
Brett
- 129
- 2
- 10
0
votes
1 answer
Segfault when calling OpenProcessToken via Ruby/DL
Please see the update below
I have been attempting to fix a Ruby library's ability to communicate with another program across UAC contexts and need to create a shared file map with the same security attributes as the current user. I'm using Ruby/dl…
Chris Hunt
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