Class: Fzeet::Windows::HTMLElementCollection

Inherits:

Object

• Object
• Fzeet::Windows::HTMLElementCollection

Defined in:

lib/fzeet/windows/mshtml/Common.rb

Instance Method Summary

• #get(selector) ⇒ Object

Instance Method Details

#get(selector) ⇒ Object

# File 'lib/fzeet/windows/mshtml/Common.rb', line 874

def get(selector)
  v = VARIANT.new

  case selector
  when String
    v[:vt] = VT_BSTR
    v[:bstrVal] = bstr = if selector[0] == '#'
      Windows.SysAllocString("#{selector[1..-1]}\0".encode('utf-16le'))
    else
      _tags = true
      Windows.SysAllocString("#{selector}\0".encode('utf-16le'))
    end
  when Integer
    v[:vt] = VT_I4; v[:intVal] = selector
  else raise ArgumentError
  end

  pdisp = nil

  FFI::MemoryPointer.new(:pointer) { |pdisp|
    (_tags) ? tags(v, pdisp) : item(v, VARIANT.new, pdisp)

    return nil if (pdisp = pdisp.read_pointer).null?

    disp = Dispatch.new(pdisp)

    return disp.QueryInstance((_tags) ? HTMLElementCollection : HTMLElement)
  }
ensure
  Windows.SysFreeString(bstr) if bstr
  pdisp.Release if pdisp && !pdisp.null?
end