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* NKSP: Added built-in function same_region().

1 schoenebeck 3229 <html>
2     <head>
3     <meta name="author" content="Christian Schoenebeck">
4     <title>same_region() function</title>
5     <meta name="description" content="Check whether two keys are mapped to the same region.">
6     </head>
7     <body>
8     <h1>same_region()</h1>
9     <p>
10     The key range (or note range if you will) of instruments is assigned to
11     one more multiple keyboard regions. So each "region" is responsible for
12     mapping audio samples and synthesis parameters for a certain key range.
13     This function takes two keys on the keyboard (as MIDI note numbers) as
14     arguments and checks the region relationship of the two keys, that is if the two
15     keys have a region mapped each, and if yes how the relationship of those two
16     regions exactly is. So the result value of this function depends on the
17     precise regions layout of the currently loaded instrument.
18     </p>
19    
20     <h3>Function Prototype</h3>
21     <p/>
22     <code lang="nksp">
23     same_region(??key1??, ??key2??)
24     </code>
25    
26     <h3>Arguments</h3>
27     <table>
28     <tr>
29     <th>Argument Name</th> <th>Data Type</th> <th>Description</th>
30     </tr>
31     <tr>
32     <td><code>??key1??</code></td>
33     <td>Integer Number</td>
34     <td>Note number.<br>
35     [required]</td>
36     </tr>
37     <tr>
38     <td><code>??key2??</code></td>
39     <td>Integer Number</td>
40     <td>Note number.<br>
41     [required]</td>
42     </tr>
43     </table>
44    
45     <h3>Return Value</h3>
46     <table>
47     <tr>
48     <th>Description</th> <th>Data Type</th>
49     </tr>
50     <tr>
51     <td>Relationship of the two keys:<br>
52     0: Both keys have a region, however they are two different
53     regions, which also and don't overlap each other.<br>
54     1: Both keys have a region and it is exactly the same region.<br>
55     2: Both keys have a region, which are two different regions, they are overlapping each other though.<br>
56     3: <code>??key1??</code> has a region, <code>??key2??</code> does not have any region.<br>
57     4: <code>??key1??</code> does not have any region, <code>??key2??</code> has a region.<br>
58     5: <code>??key1??</code> and <code>??key2??</code> both don't have any region.
59     </td>
60     <td>Integer Number</td>
61     </tr>
62     </table>
63    
64     <note>
65     The GigaStudio/Gigasampler format currently does not officially allow
66     overlapping regions. So the designated return value <code>2</code> is
67     reserved for such a potential future feature.
68     </note>
69    
70     <h3>Examples</h3>
71     <p>None yet.</p>
72    
73     <h3>Availability</h3>
74     <p>Since LinuxSampler 2.0.0.svn53.<p>
75    
76     <note class="important">
77     This function is currently only available for the GigaStudio/Gigasampler
78     format engine.
79     </note>
80    
81     </body>
82     </html>

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