Methods
C
N
Constants
DLL = {}
 
TYPEMAP = {"0" => Fiddle::TYPE_VOID, "S" => Fiddle::TYPE_VOIDP, "I" => Fiddle::TYPE_LONG}
 
POINTER_TYPE = Fiddle::SIZEOF_VOIDP == Fiddle::SIZEOF_LONG_LONG ? 'q*' : 'l!*'
 
Class Public methods
new(dllname, func, import, export = "0", calltype = :stdcall)

Source: show | on GitHub 

# File ext/win32/lib/Win32API.rb, line 13
def initialize(dllname, func, import, export = "0", calltype = :stdcall)
  @proto = [import].join.tr("VPpNnLlIi", "0SSI").sub(/^(.)0*$/, '\1')
  handle = DLL[dllname] ||= Fiddle.dlopen(dllname)

  @func = Fiddle::Function.new(
    handle[func],
    @proto.chars.map { |win_type| TYPEMAP[win_type.tr("VPpNnLlIi", "0SSI")] },
    TYPEMAP[export.tr("VPpNnLlIi", "0SSI")],
    Fiddle::Importer.const_get(:CALL_TYPE_TO_ABI)[calltype]
  )
rescue Fiddle::DLError => e
  raise LoadError, e.message, e.backtrace
end
Instance Public methods
Call(*args)
Alias for: call
call(*args)
Also aliased as: Call

Source: show | on GitHub 

# File ext/win32/lib/Win32API.rb, line 27
def call(*args)
  import = @proto.split("")
  args.each_with_index do |x, i|
    args[i], = [x == 0 ? nil : x].pack("p").unpack(POINTER_TYPE) if import[i] == "S"
    args[i], = [x].pack("I").unpack("i") if import[i] == "I"
  end
  ret, = @func.call(*args)
  return ret || 0
end