Module: WindowsCOM::COMInterface_

Defined in:

lib/windows_com/common.rb

Class Method Summary

• .[](vtbl, siid) ⇒ Object

Class Method Details

.[](vtbl, siid) ⇒ Object

# File 'lib/windows_com/common.rb', line 175

def self.[](vtbl, siid)
  Class.new {
    const_set :Vtbl, vtbl
    const_set :IID, WindowsCOM::GUID[siid]

    def initialize(pointer)
      @vptr = WindowsCOM::COMVptr_.new(pointer)
      @vtbl = self.class::Vtbl.new(@vptr[:lpVtbl])
    end

    attr_reader :vptr, :vtbl

    self::Vtbl.members.each { |name, sig|
      define_method(name) { |*args|
        hresult = @vtbl[name].call(@vptr, *args)

        raise "#{self}.#{name} failed (hresult: #{format('%#08x', hresult)})" if
          WindowsCOM::FAILED(hresult)

        hresult
      }
    }
  }
end