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<H1><A NAME="SECTION005400000000000000000">
3.4 <tt class="module">aetypes</tt> --
         AppleEvent objects</A>
</H1>

<P>
<A NAME="module-aetypes"></A>  
<p class="availability">Availability: <span
 class="platform">Macintosh</span>.</p>

<P>
The <tt class="module">aetypes</tt> defines classes used to represent Apple Event data
descriptors and Apple Event object specifiers.

<P>
Apple Event data is contained in descriptors, and these descriptors
are typed. For many descriptors the Python representation is simply the
corresponding Python type: <code>typeText</code> in OSA is a Python string,
<code>typeFloat</code> is a float, etc. For OSA types that have no direct
Python counterpart this module declares classes. Packing and unpacking
instances of these classes is handled automatically by <tt class="module">aepack</tt>.

<P>
An object specifier is essentially an address of an object implemented
in a Apple Event server. An Apple Event specifier is used as the direct
object for an Apple Event or as the argument of an optional parameter.
The <tt class="module">aetypes</tt> module contains the base classes for OSA classes
and properties, which are used by the packages generated by
<tt class="module">gensuitemodule</tt> to populate the classes and properties in a
given suite.

<P>
For reasons of backward compatibility, and for cases where you need to
script an application for which you have not generated the stub package
this module also contains object specifiers for a number of common OSA
classes such as <code>Document</code>, <code>Window</code>, <code>Character</code>, etc.

<P>
The <tt class="module">AEObjects</tt> module defines the following classes to represent
Apple Event descriptor data:

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><span class="typelabel">class</span>&nbsp;<tt id='l2h-153' xml:id='l2h-153' class="class">Unknown</tt></b>(</nobr></td>
  <td><var>type, data</var>)</td></tr></table></dt>
<dd>
The representation of OSA descriptor data for which the <tt class="module">aepack</tt>
and <tt class="module">aetypes</tt> modules have no support, i.e. anything that is not
represented by the other classes here and that is not equivalent to a
simple Python value.
</dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><span class="typelabel">class</span>&nbsp;<tt id='l2h-154' xml:id='l2h-154' class="class">Enum</tt></b>(</nobr></td>
  <td><var>enum</var>)</td></tr></table></dt>
<dd>
An enumeration value with the given 4-character string value.
</dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><span class="typelabel">class</span>&nbsp;<tt id='l2h-155' xml:id='l2h-155' class="class">InsertionLoc</tt></b>(</nobr></td>
  <td><var>of, pos</var>)</td></tr></table></dt>
<dd>
Position <code>pos</code> in object <code>of</code>.
</dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><span class="typelabel">class</span>&nbsp;<tt id='l2h-156' xml:id='l2h-156' class="class">Boolean</tt></b>(</nobr></td>
  <td><var>bool</var>)</td></tr></table></dt>
<dd>
A boolean.
</dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><span class="typelabel">class</span>&nbsp;<tt id='l2h-157' xml:id='l2h-157' class="class">StyledText</tt></b>(</nobr></td>
  <td><var>style, text</var>)</td></tr></table></dt>
<dd>
Text with style information (font, face, etc) included.
</dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><span class="typelabel">class</span>&nbsp;<tt id='l2h-158' xml:id='l2h-158' class="class">AEText</tt></b>(</nobr></td>
  <td><var>script, style, text</var>)</td></tr></table></dt>
<dd>
Text with script system and style information included.
</dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><span class="typelabel">class</span>&nbsp;<tt id='l2h-159' xml:id='l2h-159' class="class">IntlText</tt></b>(</nobr></td>
  <td><var>script, language, text</var>)</td></tr></table></dt>
<dd>
Text with script system and language information included.
</dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><span class="typelabel">class</span>&nbsp;<tt id='l2h-160' xml:id='l2h-160' class="class">IntlWritingCode</tt></b>(</nobr></td>
  <td><var>script, language</var>)</td></tr></table></dt>
<dd>
Script system and language information.
</dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><span class="typelabel">class</span>&nbsp;<tt id='l2h-161' xml:id='l2h-161' class="class">QDPoint</tt></b>(</nobr></td>
  <td><var>v, h</var>)</td></tr></table></dt>
<dd>
A quickdraw point.
</dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><span class="typelabel">class</span>&nbsp;<tt id='l2h-162' xml:id='l2h-162' class="class">QDRectangle</tt></b>(</nobr></td>
  <td><var>v0, h0, v1, h1</var>)</td></tr></table></dt>
<dd>
A quickdraw rectangle.
</dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><span class="typelabel">class</span>&nbsp;<tt id='l2h-163' xml:id='l2h-163' class="class">RGBColor</tt></b>(</nobr></td>
  <td><var>r, g, b</var>)</td></tr></table></dt>
<dd>
A color.
</dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><span class="typelabel">class</span>&nbsp;<tt id='l2h-164' xml:id='l2h-164' class="class">Type</tt></b>(</nobr></td>
  <td><var>type</var>)</td></tr></table></dt>
<dd>
An OSA type value with the given 4-character name.
</dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><span class="typelabel">class</span>&nbsp;<tt id='l2h-165' xml:id='l2h-165' class="class">Keyword</tt></b>(</nobr></td>
  <td><var>name</var>)</td></tr></table></dt>
<dd>
An OSA keyword with the given 4-character name.
</dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><span class="typelabel">class</span>&nbsp;<tt id='l2h-166' xml:id='l2h-166' class="class">Range</tt></b>(</nobr></td>
  <td><var>start, stop</var>)</td></tr></table></dt>
<dd>
A range.
</dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><span class="typelabel">class</span>&nbsp;<tt id='l2h-167' xml:id='l2h-167' class="class">Ordinal</tt></b>(</nobr></td>
  <td><var>abso</var>)</td></tr></table></dt>
<dd>
Non-numeric absolute positions, such as <code>"firs"</code>, first, or <code>"midd"</code>,
middle.
</dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><span class="typelabel">class</span>&nbsp;<tt id='l2h-168' xml:id='l2h-168' class="class">Logical</tt></b>(</nobr></td>
  <td><var>logc, term</var>)</td></tr></table></dt>
<dd>
The logical expression of applying operator <code>logc</code> to
<code>term</code>.
</dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><span class="typelabel">class</span>&nbsp;<tt id='l2h-169' xml:id='l2h-169' class="class">Comparison</tt></b>(</nobr></td>
  <td><var>obj1, relo, obj2</var>)</td></tr></table></dt>
<dd>
The comparison <code>relo</code> of <code>obj1</code> to <code>obj2</code>.
</dl>

<P>
The following classes are used as base classes by the generated stub
packages to represent AppleScript classes and properties in Python:

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><span class="typelabel">class</span>&nbsp;<tt id='l2h-170' xml:id='l2h-170' class="class">ComponentItem</tt></b>(</nobr></td>
  <td><var>which</var><big>[</big><var>, fr</var><big>]</big><var></var>)</td></tr></table></dt>
<dd>
Abstract baseclass for an OSA class. The subclass should set the class
attribute <code>want</code> to the 4-character OSA class code. Instances of
subclasses of this class are equivalent to AppleScript Object
Specifiers. Upon instantiation you should pass a selector in
<code>which</code>, and optionally a parent object in <code>fr</code>.
</dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><span class="typelabel">class</span>&nbsp;<tt id='l2h-171' xml:id='l2h-171' class="class">NProperty</tt></b>(</nobr></td>
  <td><var>fr</var>)</td></tr></table></dt>
<dd>
Abstract baseclass for an OSA property. The subclass should set the class
attributes <code>want</code> and <code>which</code> to designate which property we
are talking about. Instances of subclasses of this class are Object
Specifiers.
</dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><span class="typelabel">class</span>&nbsp;<tt id='l2h-172' xml:id='l2h-172' class="class">ObjectSpecifier</tt></b>(</nobr></td>
  <td><var>want, form, seld</var><big>[</big><var>, fr</var><big>]</big><var></var>)</td></tr></table></dt>
<dd>
Base class of <code>ComponentItem</code> and <code>NProperty</code>, a general
OSA Object Specifier. See the Apple Open Scripting Architecture
documentation for the parameters. Note that this class is not abstract.
</dl>

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	54
	55	<H1><A NAME="SECTION005400000000000000000">
	56	3.4 <tt class="module">aetypes</tt> --
	57	AppleEvent objects</A>
	58	</H1>
	59
	60	<P>
	61	<A NAME="module-aetypes"></A>
	62	<p class="availability">Availability: <span
	63	class="platform">Macintosh</span>.</p>
	64
65	<P>
66	The <tt class="module">aetypes</tt> defines classes used to represent Apple Event data
67	descriptors and Apple Event object specifiers.
68
69	<P>
70	Apple Event data is contained in descriptors, and these descriptors
71	are typed. For many descriptors the Python representation is simply the
72	corresponding Python type: <code>typeText</code> in OSA is a Python string,
73	<code>typeFloat</code> is a float, etc. For OSA types that have no direct
74	Python counterpart this module declares classes. Packing and unpacking
75	instances of these classes is handled automatically by <tt class="module">aepack</tt>.
76
77	<P>
78	An object specifier is essentially an address of an object implemented
79	in a Apple Event server. An Apple Event specifier is used as the direct
80	object for an Apple Event or as the argument of an optional parameter.
81	The <tt class="module">aetypes</tt> module contains the base classes for OSA classes
82	and properties, which are used by the packages generated by
83	<tt class="module">gensuitemodule</tt> to populate the classes and properties in a
84	given suite.
85
86	<P>
87	For reasons of backward compatibility, and for cases where you need to
88	script an application for which you have not generated the stub package
89	this module also contains object specifiers for a number of common OSA
90	classes such as <code>Document</code>, <code>Window</code>, <code>Character</code>, etc.
91
92	<P>
93	The <tt class="module">AEObjects</tt> module defines the following classes to represent
94	Apple Event descriptor data:
95
96	<P>
97	<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
98	<td><nobr><b><span class="typelabel">class</span> <tt id='l2h-153' xml:id='l2h-153' class="class">Unknown</tt></b>(</nobr></td>
99	<td><var>type, data</var>)</td></tr></table></dt>
100	<dd>
101	The representation of OSA descriptor data for which the <tt class="module">aepack</tt>
102	and <tt class="module">aetypes</tt> modules have no support, i.e. anything that is not
103	represented by the other classes here and that is not equivalent to a
104	simple Python value.
105	</dl>
106
107	<P>
108	<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
109	<td><nobr><b><span class="typelabel">class</span> <tt id='l2h-154' xml:id='l2h-154' class="class">Enum</tt></b>(</nobr></td>
110	<td><var>enum</var>)</td></tr></table></dt>
111	<dd>
112	An enumeration value with the given 4-character string value.
113	</dl>
114
115	<P>
116	<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
117	<td><nobr><b><span class="typelabel">class</span> <tt id='l2h-155' xml:id='l2h-155' class="class">InsertionLoc</tt></b>(</nobr></td>
118	<td><var>of, pos</var>)</td></tr></table></dt>
119	<dd>
120	Position <code>pos</code> in object <code>of</code>.
121	</dl>
122
123	<P>
124	<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
125	<td><nobr><b><span class="typelabel">class</span> <tt id='l2h-156' xml:id='l2h-156' class="class">Boolean</tt></b>(</nobr></td>
126	<td><var>bool</var>)</td></tr></table></dt>
127	<dd>
128	A boolean.
129	</dl>
130
131	<P>
132	<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
133	<td><nobr><b><span class="typelabel">class</span> <tt id='l2h-157' xml:id='l2h-157' class="class">StyledText</tt></b>(</nobr></td>
134	<td><var>style, text</var>)</td></tr></table></dt>
135	<dd>
136	Text with style information (font, face, etc) included.
137	</dl>
138
139	<P>
140	<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
141	<td><nobr><b><span class="typelabel">class</span> <tt id='l2h-158' xml:id='l2h-158' class="class">AEText</tt></b>(</nobr></td>
142	<td><var>script, style, text</var>)</td></tr></table></dt>
143	<dd>
144	Text with script system and style information included.
145	</dl>
146
147	<P>
148	<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
149	<td><nobr><b><span class="typelabel">class</span> <tt id='l2h-159' xml:id='l2h-159' class="class">IntlText</tt></b>(</nobr></td>
150	<td><var>script, language, text</var>)</td></tr></table></dt>
151	<dd>
152	Text with script system and language information included.
153	</dl>
154
155	<P>
156	<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
157	<td><nobr><b><span class="typelabel">class</span> <tt id='l2h-160' xml:id='l2h-160' class="class">IntlWritingCode</tt></b>(</nobr></td>
158	<td><var>script, language</var>)</td></tr></table></dt>
159	<dd>
160	Script system and language information.
161	</dl>
162
163	<P>
164	<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
165	<td><nobr><b><span class="typelabel">class</span> <tt id='l2h-161' xml:id='l2h-161' class="class">QDPoint</tt></b>(</nobr></td>
166	<td><var>v, h</var>)</td></tr></table></dt>
167	<dd>
168	A quickdraw point.
169	</dl>
170
171	<P>
172	<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
173	<td><nobr><b><span class="typelabel">class</span> <tt id='l2h-162' xml:id='l2h-162' class="class">QDRectangle</tt></b>(</nobr></td>
174	<td><var>v0, h0, v1, h1</var>)</td></tr></table></dt>
175	<dd>
176	A quickdraw rectangle.
177	</dl>
178
179	<P>
180	<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
181	<td><nobr><b><span class="typelabel">class</span> <tt id='l2h-163' xml:id='l2h-163' class="class">RGBColor</tt></b>(</nobr></td>
182	<td><var>r, g, b</var>)</td></tr></table></dt>
183	<dd>
184	A color.
185	</dl>
186
187	<P>
188	<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
189	<td><nobr><b><span class="typelabel">class</span> <tt id='l2h-164' xml:id='l2h-164' class="class">Type</tt></b>(</nobr></td>
190	<td><var>type</var>)</td></tr></table></dt>
191	<dd>
192	An OSA type value with the given 4-character name.
193	</dl>
194
195	<P>
196	<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
197	<td><nobr><b><span class="typelabel">class</span> <tt id='l2h-165' xml:id='l2h-165' class="class">Keyword</tt></b>(</nobr></td>
198	<td><var>name</var>)</td></tr></table></dt>
199	<dd>
200	An OSA keyword with the given 4-character name.
201	</dl>
202
203	<P>
204	<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
205	<td><nobr><b><span class="typelabel">class</span> <tt id='l2h-166' xml:id='l2h-166' class="class">Range</tt></b>(</nobr></td>
206	<td><var>start, stop</var>)</td></tr></table></dt>
207	<dd>
208	A range.
209	</dl>
210
211	<P>
212	<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
213	<td><nobr><b><span class="typelabel">class</span> <tt id='l2h-167' xml:id='l2h-167' class="class">Ordinal</tt></b>(</nobr></td>
214	<td><var>abso</var>)</td></tr></table></dt>
215	<dd>
216	Non-numeric absolute positions, such as <code>"firs"</code>, first, or <code>"midd"</code>,
217	middle.
218	</dl>
219
220	<P>
221	<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
222	<td><nobr><b><span class="typelabel">class</span> <tt id='l2h-168' xml:id='l2h-168' class="class">Logical</tt></b>(</nobr></td>
223	<td><var>logc, term</var>)</td></tr></table></dt>
224	<dd>
225	The logical expression of applying operator <code>logc</code> to
226	<code>term</code>.
227	</dl>
228
229	<P>
230	<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
231	<td><nobr><b><span class="typelabel">class</span> <tt id='l2h-169' xml:id='l2h-169' class="class">Comparison</tt></b>(</nobr></td>
232	<td><var>obj1, relo, obj2</var>)</td></tr></table></dt>
233	<dd>
234	The comparison <code>relo</code> of <code>obj1</code> to <code>obj2</code>.
235	</dl>
236
237	<P>
238	The following classes are used as base classes by the generated stub
239	packages to represent AppleScript classes and properties in Python:
240
241	<P>
242	<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
243	<td><nobr><b><span class="typelabel">class</span> <tt id='l2h-170' xml:id='l2h-170' class="class">ComponentItem</tt></b>(</nobr></td>
244	<td><var>which</var><big>[</big><var>, fr</var><big>]</big><var></var>)</td></tr></table></dt>
245	<dd>
246	Abstract baseclass for an OSA class. The subclass should set the class
247	attribute <code>want</code> to the 4-character OSA class code. Instances of
248	subclasses of this class are equivalent to AppleScript Object
249	Specifiers. Upon instantiation you should pass a selector in
250	<code>which</code>, and optionally a parent object in <code>fr</code>.
251	</dl>
252
253	<P>
254	<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
255	<td><nobr><b><span class="typelabel">class</span> <tt id='l2h-171' xml:id='l2h-171' class="class">NProperty</tt></b>(</nobr></td>
256	<td><var>fr</var>)</td></tr></table></dt>
257	<dd>
258	Abstract baseclass for an OSA property. The subclass should set the class
259	attributes <code>want</code> and <code>which</code> to designate which property we
260	are talking about. Instances of subclasses of this class are Object
261	Specifiers.
262	</dl>
263
264	<P>
265	<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
266	<td><nobr><b><span class="typelabel">class</span> <tt id='l2h-172' xml:id='l2h-172' class="class">ObjectSpecifier</tt></b>(</nobr></td>
267	<td><var>want, form, seld</var><big>[</big><var>, fr</var><big>]</big><var></var>)</td></tr></table></dt>
268	<dd>
269	Base class of <code>ComponentItem</code> and <code>NProperty</code>, a general
270	OSA Object Specifier. See the Apple Open Scripting Architecture
271	documentation for the parameters. Note that this class is not abstract.
272	</dl>
273
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