Module: Unknownr::Windows::COM::Factory

Defined in:

lib/unknownr.rb

Class Method Summary

• .[](iface, clsid) ⇒ Object

Class Method Details

.[](iface, clsid) ⇒ Object

# File 'lib/unknownr.rb', line 181

def self.[](iface, clsid)
	Class.new(iface) {
		send(:include, Helpers)

		const_set(:CLSID, clsid)

		def initialize(opts = {})
			@opts = opts

			@opts[:clsctx] ||= CLSCTX_INPROC_SERVER

			FFI::MemoryPointer.new(:pointer) { |ppv|
				raise "CoCreateInstance failed (#{self.class})." if
					Windows.FAILED(Windows.CoCreateInstance(self.class::CLSID, nil, @opts[:clsctx], self.class::IID, ppv))

				self.pointer = ppv.read_pointer
			}

			@vtbl = self.class::VTBL.new(self[:lpVtbl])
		end

		attr_reader :vtbl

		self::VTBL.members.each { |name|
			define_method(name) { |*args|
				raise "#{self}.#{name} failed." if Windows.FAILED(result = @vtbl[name].call(self, *args)); result
			}
		}
	}
end