create_an_organization_attribute_class.htm

acis说明文档

</p>
<ol><li> Copy the at_tsl.cxx file from the ACIS installation directory and rename it at_abc.cxx. (If you do not have the source file, enter the content from this example into a file.)
</li><li> Change the bold sentinels as was done for the at_abc.hxx header file.
</li><li> Enter statements to include the header files necessary to define the attribute.
</li></ol>
<blockquote class="templatequote"><div>
<p><i><b>Note:</b>  File acis.hxx should always be the first header file included in every ACIS application implementation file.</i>
</p>
</div></blockquote>
<p>The following example of the attribute implementation file shows the sentinels that are to be replaced in <b>bold</b> font. In the new file, the new sentinel is shown in<i> <b>bold italic</b></i> font.
</p>
<a name="C.2B.2B_Example_3"></a><h3> <span class="mw-headline"> C++ Example </span></h3>
<pre class="source-cpp"><span class="kw2">#include</span> &lt;stdio.<span class="me1">h</span>&gt;
<span class="kw2">#include</span> <span class="st0">&quot;acis.hxx&quot;</span>
<span class="kw2">#include</span> <span class="st0">&quot;dcl_kern.h&quot;</span>
<span class="kw2">#include</span> <span class="st0">&quot;at_tsl.hxx&quot;</span>
<span class="kw2">#include</span> <span class="st0">&quot;datamsc.hxx&quot;</span>
<span class="co1">// Define macros for this attribute and its parent, to provide</span>
<span class="co1">// the information to the definition macro.</span>
<span class="kw2">#define</span> <span class="kw3">THIS</span><span class="br0">&#40;</span><span class="br0">&#41;</span> <span class="kw7">ATTRIB_TSL</span>
<span class="kw2">#define</span> <span class="kw7">THIS_LIB</span> KERN
<span class="kw2">#define</span> <span class="kw7">PARENT</span><span class="br0">&#40;</span><span class="br0">&#41;</span> <span class="kw7">ATTRIB</span>
<span class="kw2">#define</span> <span class="kw7">PARENT_LIB</span> KERN
<span class="co1">// Identifier used externally to identify a particular entity</span>
<span class="co1">// type. This is only used within the save/restore system for</span>
<span class="co1">// translating to/from external file format, but must be unique</span>
<span class="co1">// amongst attributes derived directly from ATTRIB, across all</span>
<span class="co1">// application developers.</span>
<span class="kw2">#define</span> <span class="kw7">ATTRIB_TSL_NAME</span> <span class="st0">&quot;tsl&quot;</span>
<span class="kw7">MASTER_ATTRIB_DEFN</span><span class="br0">&#40;</span> <span class="st0">&quot;tsl master attribute&quot;</span> <span class="br0">&#41;</span></pre>
<p>Example. Original at_tsl.cxx
</p><p>The macro MASTER_ATTRIB_DEFN generates all the code necessary to define the organization attribute class. The character string is the value returned by the type_name method. After customizing .at_tsl.cxx into .at_abc.cxx, the organization class file should appear similar to the next example.
</p>
<a name="C.2B.2B_Example_4"></a><h3> <span class="mw-headline"> C++ Example </span></h3>
<pre class="source-cpp"><span class="kw2">#include</span> &lt;stdio.<span class="me1">h</span>&gt;
<span class="kw2">#include</span> <span class="st0">&quot;acis.hxx&quot;</span>
<span class="kw2">#include</span> <span class="st0">&quot;dcl_kern.h&quot;</span>
<span class="kw2">#include</span> <span class="st0">&quot;datamsc.hxx&quot;</span>
<span class="kw2">#include</span> <span class="st0">&quot;at_abc.hxx&quot;</span>
&nbsp;
<span class="co1">// Define macros for this attribute and its parent, to provide</span>
<span class="co1">// the information to the definition macro.</span>
&nbsp;
<span class="kw2">#define</span> <span class="kw3">THIS</span><span class="br0">&#40;</span><span class="br0">&#41;</span> ATTRIB_ABC
<span class="kw2">#define</span> <span class="kw7">THIS_LIB</span> NONE
<span class="kw2">#define</span> <span class="kw7">PARENT</span><span class="br0">&#40;</span><span class="br0">&#41;</span> <span class="kw7">ATTRIB</span>
<span class="kw2">#define</span> <span class="kw7">PARENT_LIB</span> KERN
&nbsp;
<span class="co1">// Identifier used externally to identify a particular entity</span>
<span class="co1">// type. This is only used within the save/restore system for</span>
<span class="co1">// translating to/from external file format, but must be unique</span>
<span class="co1">// amongst attributes derived directly from ATTRIB, across all</span>
<span class="co1">// application developers.</span>
&nbsp;
<span class="kw2">#define</span> ATTRIB_ABC_NAME abc
<span class="kw7">MASTER_ATTRIB_DEFN</span><span class="br0">&#40;</span> abc master attribute <span class="br0">&#41;</span></pre>
<p>Example. Customized at_abc.cxx
</p>
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