Class: WIN32OLE::Param

Inherits:
Object
  • Object
show all
Defined in:
win32ole_param.c,
win32ole_param.c

Overview

WIN32OLE::Param objects represent param information of

the OLE method.

Instance Method Summary collapse

Constructor Details

#new(method, n) ⇒ WIN32OLE::Param object

Returns WIN32OLE::Param object which represents OLE parameter information. 1st argument should be WIN32OLE::Method object. 2nd argument ‘n’ is n-th parameter of the method specified by 1st argument.

tobj = WIN32OLE::Type.new('Microsoft Scripting Runtime', 'IFileSystem')
method = WIN32OLE::Method.new(tobj, 'CreateTextFile')
param = WIN32OLE::Param.new(method, 2) # => #<WIN32OLE::Param:Overwrite=true>



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# File 'win32ole_param.c', line 145

static VALUE
foleparam_initialize(VALUE self, VALUE olemethod, VALUE n)
{
    int idx;
    if (!rb_obj_is_kind_of(olemethod, cWIN32OLE_METHOD)) {
        rb_raise(rb_eTypeError, "1st parameter must be WIN32OLE::Method object");
    }
    idx = RB_FIX2INT(n);
    return oleparam_ole_param(self, olemethod, idx);
}

Instance Method Details

#default ⇒ Object

Returns default value. If the default value does not exist, this method returns nil.

tobj = WIN32OLE::Type.new('Microsoft Excel 9.0 Object Library', 'Workbook')
method = WIN32OLE::Method.new(tobj, 'SaveAs')
method.params.each do |param|
  if param.default
    puts "#{param.name} (= #{param.default})"
  else
    puts "#{param}"
  end
end

The above script result is following:

Filename
FileFormat
Password
WriteResPassword
ReadOnlyRecommended
CreateBackup
AccessMode (= 1)
ConflictResolution
AddToMru
TextCodepage
TextVisualLayout



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# File 'win32ole_param.c', line 393

static VALUE
foleparam_default(VALUE self)
{
    struct oleparamdata *pparam;
    TypedData_Get_Struct(self, struct oleparamdata, &oleparam_datatype, pparam);
    return ole_param_default(pparam->pTypeInfo, pparam->method_index,
                             pparam->index);
}

#input? ⇒ Boolean

Returns true if the parameter is input.

tobj = WIN32OLE::Type.new('Microsoft Excel 9.0 Object Library', 'Workbook')
method = WIN32OLE::Method.new(tobj, 'SaveAs')
param1 = method.params[0]
puts param1.input? # => true



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# File 'win32ole_param.c', line 265

static VALUE
foleparam_input(VALUE self)
{
    struct oleparamdata *pparam;
    TypedData_Get_Struct(self, struct oleparamdata, &oleparam_datatype, pparam);
    return ole_param_flag_mask(pparam->pTypeInfo, pparam->method_index,
                               pparam->index, PARAMFLAG_FIN);
}

#inspect ⇒ String

Returns the parameter name with class name. If the parameter has default value, then returns name=value string with class name.



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# File 'win32ole_param.c', line 410

static VALUE
foleparam_inspect(VALUE self)
{
    VALUE detail = foleparam_name(self);
    VALUE defval = foleparam_default(self);
    if (defval != Qnil) {
        rb_str_cat2(detail, "=");
        rb_str_concat(detail, rb_inspect(defval));
    }
    return make_inspect("WIN32OLE::Param", detail);
}

#name ⇒ Object Also known as: to_s

Returns name.

tobj = WIN32OLE::Type.new('Microsoft Excel 9.0 Object Library', 'Workbook')
method = WIN32OLE::Method.new(tobj, 'SaveAs')
param1 = method.params[0]
puts param1.name # => Filename



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# File 'win32ole_param.c', line 166

static VALUE
foleparam_name(VALUE self)
{
    return rb_ivar_get(self, rb_intern("name"));
}

#ole_type ⇒ Object

Returns OLE type of WIN32OLE::Param object(parameter of OLE method).

tobj = WIN32OLE::Type.new('Microsoft Excel 9.0 Object Library', 'Workbook')
method = WIN32OLE::Method.new(tobj, 'SaveAs')
param1 = method.params[0]
puts param1.ole_type # => VARIANT



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# File 'win32ole_param.c', line 197

static VALUE
foleparam_ole_type(VALUE self)
{
    struct oleparamdata *pparam;
    TypedData_Get_Struct(self, struct oleparamdata, &oleparam_datatype, pparam);
    return ole_param_ole_type(pparam->pTypeInfo, pparam->method_index,
                              pparam->index);
}

#ole_type_detail ⇒ Object

Returns detail information of type of argument.

tobj = WIN32OLE::Type.new('Microsoft Excel 9.0 Object Library', 'IWorksheetFunction')
method = WIN32OLE::Method.new(tobj, 'SumIf')
param1 = method.params[0]
p param1.ole_type_detail # => ["PTR", "USERDEFINED", "Range"]



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# File 'win32ole_param.c', line 231

static VALUE
foleparam_ole_type_detail(VALUE self)
{
    struct oleparamdata *pparam;
    TypedData_Get_Struct(self, struct oleparamdata, &oleparam_datatype, pparam);
    return ole_param_ole_type_detail(pparam->pTypeInfo, pparam->method_index,
                                     pparam->index);
}

#optional? ⇒ Boolean

Returns true if argument is optional.

tobj = WIN32OLE::Type.new('Microsoft Excel 9.0 Object Library', 'Workbook')
method = WIN32OLE::Method.new(tobj, 'SaveAs')
param1 = method.params[0]
puts "#{param1.name} #{param1.optional?}" # => Filename true



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# File 'win32ole_param.c', line 312

static VALUE
foleparam_optional(VALUE self)
{
    struct oleparamdata *pparam;
    TypedData_Get_Struct(self, struct oleparamdata, &oleparam_datatype, pparam);
    return ole_param_flag_mask(pparam->pTypeInfo, pparam->method_index,
                               pparam->index, PARAMFLAG_FOPT);
}

#output? ⇒ Boolean

Returns true if argument is output.

tobj = WIN32OLE::Type.new('Microsoft Internet Controls', 'DWebBrowserEvents')
method = WIN32OLE::Method.new(tobj, 'NewWindow')
method.params.each do |param|
  puts "#{param.name} #{param.output?}"
end

The result of above script is following:

URL false
Flags false
TargetFrameName false
PostData false
Headers false
Processed true



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# File 'win32ole_param.c', line 293

static VALUE
foleparam_output(VALUE self)
{
    struct oleparamdata *pparam;
    TypedData_Get_Struct(self, struct oleparamdata, &oleparam_datatype, pparam);
    return ole_param_flag_mask(pparam->pTypeInfo, pparam->method_index,
                               pparam->index, PARAMFLAG_FOUT);
}

#retval? ⇒ Boolean

Returns true if argument is return value.

tobj = WIN32OLE::Type.new('DirectX 7 for Visual Basic Type Library',
                          'DirectPlayLobbyConnection')
method = WIN32OLE::Method.new(tobj, 'GetPlayerShortName')
param = method.params[0]
puts "#{param.name} #{param.retval?}"  # => name true



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# File 'win32ole_param.c', line 332

static VALUE
foleparam_retval(VALUE self)
{
    struct oleparamdata *pparam;
    TypedData_Get_Struct(self, struct oleparamdata, &oleparam_datatype, pparam);
    return ole_param_flag_mask(pparam->pTypeInfo, pparam->method_index,
                               pparam->index, PARAMFLAG_FRETVAL);
}