ffi-win32-extensions

A Ruby library that adds some core FFI and String methods to supplement development of Ruby libraries on Windows.

Installation

gem install ffi-win32-extensions

Details

The following FFI::MemoryPointer methods have been added:

• read_array_of_string - For reading char** types.
• read_wide_string - Similar to read_string but for wide char* types.

The following FFI module functions have been added:

• windows_error_message - A Windows specific error string using FormatMessage.
• raise_windows_error - Raises a windows specific error using windows_error_message.

The following String instance methods have been added:

• wincode - Converts a string to UTF-16LE for use in wide char functions.
• wstrip - Like String#strip, but for wide strings.
• read_wide_string - Reads a Ruby string up to the first double null.

Example

require 'ffi/win32/extensions'

str = old_string.wincode rv = SomeWideFunctionW(str)

unless rv == 0
  FFI.raise_windows_error('SomeWindowsFunction', rv)
end

Copyright

(C) 2016 Daniel J. Berger, All Rights Reserved

Warranty

This package is provided "as is" and without any express or implied warranties, including, without limitation, the implied warranties of merchantability and fitness for a particular purpose.

License

Apache 2.0

Author

Daniel Berger