342 lines
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342 lines
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<h1 class="topictitle1">I/O feedback area for ICF and display files</h1>
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<div><p>The table in this topic shows the I/O feedback area for ICF and
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display files.</p>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" width="100%" frame="hsides" border="0" rules="none"><caption>Table 1. I/O feedback area for ICF and
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display files</caption><thead align="left"><tr><th align="left" valign="bottom" width="13.333333333333334%" id="d0e53">Offset</th>
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<th align="left" valign="bottom" width="17.59259259259259%" id="d0e55">Data type</th>
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<th align="left" valign="bottom" width="13.703703703703704%" id="d0e57">Length</th>
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<th align="left" valign="bottom" width="40.55555555555556%" id="d0e59">Contents</th>
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<th align="left" valign="bottom" width="14.814814814814813%" id="d0e61">File type</th>
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</tr>
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</thead>
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<tbody><tr><td align="left" valign="top" width="13.333333333333334%" headers="d0e53 "><strong>0</strong></td>
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<td align="left" valign="top" width="17.59259259259259%" headers="d0e55 "><strong>Character</strong></td>
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<td align="left" valign="top" width="13.703703703703704%" headers="d0e57 "><strong>2</strong></td>
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<td align="left" valign="top" width="40.55555555555556%" headers="d0e59 "><strong>Flag bits.</strong> <dl><dt class="dlterm">Bit 1:</dt>
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<dd>Cancel-read indicator. <dl><dt class="dlterm">0</dt>
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<dd>The cancel-read operation did not cancel the read request.</dd>
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<dt class="dlterm">1</dt>
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<dd>The cancel-read operation canceled the read request.</dd>
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</dl>
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</dd>
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<dt class="dlterm">Bit 2:</dt>
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<dd>Data-returned indicator. <dl><dt class="dlterm">0</dt>
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<dd>The cancel-read operation did not change the contents of the input buffer.</dd>
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<dt class="dlterm">1</dt>
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<dd>The cancel-read operation placed the data from the read-with-no-wait operation
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into the input buffer.</dd>
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</dl>
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</dd>
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<dt class="dlterm">Bit 3:</dt>
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<dd>Command key indicator. <dl><dt class="dlterm">0</dt>
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<dd>Conditions for setting this indicator did not occur.</dd>
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<dt class="dlterm">1</dt>
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<dd>The Print, Help, Home, Roll Up, Roll Down, or Clear key was pressed. The
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key is enabled with a DDS keyword, but without a response indicator specified.</dd>
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</dl>
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</dd>
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<dt class="dlterm">Bits 4-16:</dt>
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<dd>Reserved.</dd>
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</dl>
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</td>
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<td align="left" valign="top" width="14.814814814814813%" headers="d0e61 "><strong>Display</strong></td>
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</tr>
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<tr><td align="left" valign="top" width="13.333333333333334%" headers="d0e53 "><strong>2</strong></td>
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<td align="left" valign="top" width="17.59259259259259%" headers="d0e55 "><strong>Character</strong></td>
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<td align="left" valign="top" width="13.703703703703704%" headers="d0e57 "><strong>1</strong></td>
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<td align="left" valign="top" width="40.55555555555556%" headers="d0e59 "><strong>Attention indicator byte (AID). This field
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identifies which function key was pressed.</strong> <p>For ICF files, this field
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will always contain the value hex F1 to imitate the Enter key being pressed
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on a display device.</p>
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<div class="p">For display files, this field will contain the
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1-byte hexadecimal value returned from the device. <dl><dt><strong>Hex codes</strong></dt>
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<dd><strong>Function keys</strong></dd>
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<dt class="dlterm">hex 31</dt>
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<dd>1</dd>
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<dt class="dlterm">hex 32</dt>
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<dd>2</dd>
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<dt class="dlterm">hex 33</dt>
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<dd>3</dd>
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<dt class="dlterm">hex 34</dt>
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<dd>4</dd>
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<dt class="dlterm">hex 35</dt>
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<dd>5</dd>
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<dt class="dlterm">hex 36</dt>
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<dd>6</dd>
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<dt class="dlterm">hex 37</dt>
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<dd>7</dd>
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<dt class="dlterm">hex 38</dt>
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<dd>8</dd>
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<dt class="dlterm">hex 39</dt>
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<dd>9</dd>
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<dt class="dlterm">hex 3A</dt>
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<dd>10</dd>
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<dt class="dlterm">hex 3B</dt>
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<dd>11</dd>
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<dt class="dlterm">hex 3C</dt>
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<dd>12</dd>
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<dt class="dlterm">hex B1</dt>
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<dd>13</dd>
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<dt class="dlterm">hex B2</dt>
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<dd>14</dd>
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<dt class="dlterm">hex B3</dt>
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<dd>15</dd>
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<dt class="dlterm">hex B4</dt>
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<dd>16</dd>
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<dt class="dlterm">hex B5</dt>
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<dd>17</dd>
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</dl>
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</div>
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</td>
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<td valign="top" width="14.814814814814813%" headers="d0e61 "> </td>
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</tr>
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<tr><td align="left" valign="top" width="13.333333333333334%" headers="d0e53 "> </td>
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<td align="left" valign="top" width="17.59259259259259%" headers="d0e55 "> </td>
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<td align="left" valign="top" width="13.703703703703704%" headers="d0e57 "> </td>
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<td align="left" valign="top" width="40.55555555555556%" headers="d0e59 "> <dl><dt class="dlterm">hex B6</dt>
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<dd>18</dd>
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<dt class="dlterm">hex B7</dt>
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<dd>19</dd>
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<dt class="dlterm">hex B8</dt>
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<dd>20</dd>
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<dt class="dlterm">hex B9</dt>
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<dd>21</dd>
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<dt class="dlterm">hex BA</dt>
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<dd>22</dd>
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<dt class="dlterm">hex BB</dt>
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<dd>23</dd>
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<dt class="dlterm">hex BC</dt>
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<dd>24</dd>
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<dt class="dlterm">hex BD</dt>
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<dd>Clear</dd>
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<dt class="dlterm">hex F1</dt>
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<dd>Enter/Rec Adv</dd>
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<dt class="dlterm">hex F3</dt>
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<dd>Help (not in operator-error mode)</dd>
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<dt class="dlterm">hex F4</dt>
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<dd>Roll Down</dd>
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<dt class="dlterm">hex F5</dt>
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<dd>Roll Up</dd>
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<dt class="dlterm">hex F6</dt>
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<dd>Print</dd>
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<dt class="dlterm">hex F8</dt>
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<dd>Record Backspace</dd>
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<dt class="dlterm">hex 3F</dt>
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<dd>Auto Enter (for Selector Light Pen)</dd>
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</dl>
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</td>
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<td align="left" valign="top" width="14.814814814814813%" headers="d0e61 "><strong>Display, ICF</strong></td>
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</tr>
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<tr><td align="left" valign="top" width="13.333333333333334%" headers="d0e53 "><strong>3</strong></td>
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<td align="left" valign="top" width="17.59259259259259%" headers="d0e55 "><strong>Character</strong></td>
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<td align="left" valign="top" width="13.703703703703704%" headers="d0e57 "><strong>2</strong></td>
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<td align="left" valign="top" width="40.55555555555556%" headers="d0e59 "><strong>Cursor location (line and position)</strong>.
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Updated on input operations that are not subfile operations that return data
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to the program. For example, hex 0102 means line 1, position 2. Line 10, position
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33 would be hex 0A21.</td>
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<td align="left" valign="top" width="14.814814814814813%" headers="d0e61 "><strong>Display</strong></td>
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</tr>
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<tr><td align="left" valign="top" width="13.333333333333334%" headers="d0e53 "><strong>5</strong></td>
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<td align="left" valign="top" width="17.59259259259259%" headers="d0e55 "><strong>Binary</strong></td>
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<td align="left" valign="top" width="13.703703703703704%" headers="d0e57 "><strong>4</strong></td>
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<td align="left" valign="top" width="40.55555555555556%" headers="d0e59 "><strong>Actual data length</strong>. For an ICF file,
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see the <a href="../books/sc415442.pdf" target="_blank">ICF
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Programming</a> <img src="wbpdf.gif" alt="Link to
PDF" /> book for additional information. For a display file, this
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is the length of the record format processed by the I/O operation.</td>
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<td align="left" valign="top" width="14.814814814814813%" headers="d0e61 "><strong>Display, ICF</strong></td>
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</tr>
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<tr><td align="left" valign="top" width="13.333333333333334%" headers="d0e53 "><strong>9</strong></td>
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<td align="left" valign="top" width="17.59259259259259%" headers="d0e55 "><strong>Binary</strong></td>
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<td align="left" valign="top" width="13.703703703703704%" headers="d0e57 "><strong>2</strong></td>
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<td align="left" valign="top" width="40.55555555555556%" headers="d0e59 "><strong>Relative record number of a subfile record</strong>.
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Updated for a subfile record operation. For input operations, updated only
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if data is returned to the program. If multiple subfiles are on the display,
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this offset will contain the relative record number for the last subfile updated.</td>
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<td align="left" valign="top" width="14.814814814814813%" headers="d0e61 "><strong>Display</strong></td>
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</tr>
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<tr><td align="left" valign="top" width="13.333333333333334%" headers="d0e53 "><strong>11</strong></td>
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<td align="left" valign="top" width="17.59259259259259%" headers="d0e55 "><strong>Binary</strong></td>
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<td align="left" valign="top" width="13.703703703703704%" headers="d0e57 "><strong>2</strong></td>
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<td align="left" valign="top" width="40.55555555555556%" headers="d0e59 "><strong>Lowest subfile</strong>. ndicates the lowest
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subfile relative record number currently displayed in the uppermost subfile
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display area if the last write operation was done to the subfile control record
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with SFLDSP specified. Updated for roll up and roll down operations. Reset
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to 0 on a write operation to another record. Not set for message subfiles.</td>
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<td align="left" valign="top" width="14.814814814814813%" headers="d0e61 "><strong>Display</strong></td>
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</tr>
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<tr><td align="left" valign="top" width="13.333333333333334%" headers="d0e53 "><strong>13</strong></td>
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<td align="left" valign="top" width="17.59259259259259%" headers="d0e55 "><strong>Binary</strong></td>
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<td align="left" valign="top" width="13.703703703703704%" headers="d0e57 "><strong>2</strong></td>
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<td align="left" valign="top" width="40.55555555555556%" headers="d0e59 "><strong>Total number of records in a subfile</strong>.
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Updated on a put-relative operation to any subfile record. The number is set
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to zero on a write or write-read operation to any subfile control record with
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the SFLINZ keyword optioned on. If records are put to multiple subfiles on
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the display, this offset will contain the total number of records for all
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subfiles assuming that no write or write-read operations were performed to
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any subfile control record with the SFLINZ keyword optioned on.</td>
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<td align="left" valign="top" width="14.814814814814813%" headers="d0e61 "><strong>Display</strong></td>
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</tr>
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<tr><td align="left" valign="top" width="13.333333333333334%" headers="d0e53 "><strong>15</strong></td>
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<td align="left" valign="top" width="17.59259259259259%" headers="d0e55 "><strong>Character</strong></td>
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<td align="left" valign="top" width="13.703703703703704%" headers="d0e57 "><strong>2</strong></td>
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<td align="left" valign="top" width="40.55555555555556%" headers="d0e59 "><strong>Cursor location (line and position) within
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active window</strong>. Updated on input operations that are not subfile operations
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that return data to the program. For example, hex 0203 means line 2, position
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3 relative to the upper-left corner of the active window.</td>
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<td align="left" valign="top" width="14.814814814814813%" headers="d0e61 "><strong>Display</strong></td>
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</tr>
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<tr><td align="left" valign="top" width="13.333333333333334%" headers="d0e53 "><strong>17</strong></td>
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<td align="left" valign="top" width="17.59259259259259%" headers="d0e55 "><strong>Character</strong></td>
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<td align="left" valign="top" width="13.703703703703704%" headers="d0e57 "><strong>17</strong></td>
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<td align="left" valign="top" width="40.55555555555556%" headers="d0e59 "><strong>Reserved.</strong></td>
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<td valign="top" width="14.814814814814813%" headers="d0e61 "> </td>
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</tr>
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<tr><td align="left" valign="top" width="13.333333333333334%" headers="d0e53 "><strong>34</strong></td>
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<td align="left" valign="top" width="17.59259259259259%" headers="d0e55 "><strong>Character</strong></td>
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<td align="left" valign="top" width="13.703703703703704%" headers="d0e57 "><strong>2</strong></td>
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<td align="left" valign="top" width="40.55555555555556%" headers="d0e59 "><strong>Major return code.</strong> <dl><dt class="dlterm">00</dt>
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<dd>Operation completed successfully.</dd>
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<dt class="dlterm">02</dt>
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<dd>Input operation completed successfully, but job is being canceled (controlled).</dd>
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<dt class="dlterm">03</dt>
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<dd>Input operation completed successfully, but no data received.</dd>
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<dt class="dlterm">04</dt>
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<dd>Output exception.</dd>
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<dt class="dlterm">08</dt>
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<dd>Device already acquired.</dd>
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<dt class="dlterm">11</dt>
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<dd>Read from invited devices was not successful.</dd>
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<dt class="dlterm">34</dt>
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<dd>Input exception.</dd>
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<dt class="dlterm">80</dt>
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<dd>Permanent server or file error.</dd>
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<dt class="dlterm">81</dt>
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<dd>Permanent session or device error.</dd>
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<dt class="dlterm">82</dt>
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<dd>Acquire or open operation failed.</dd>
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<dt class="dlterm">83</dt>
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<dd>Recoverable session or device error.</dd>
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</dl>
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</td>
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<td align="left" valign="top" width="14.814814814814813%" headers="d0e61 "><strong>Display, ICF</strong></td>
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</tr>
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<tr><td align="left" valign="top" width="13.333333333333334%" headers="d0e53 "><strong>36</strong></td>
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<td align="left" valign="top" width="17.59259259259259%" headers="d0e55 "><strong>Character</strong></td>
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<td align="left" valign="top" width="13.703703703703704%" headers="d0e57 "><strong>2</strong></td>
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<td align="left" valign="top" width="40.55555555555556%" headers="d0e59 "><strong>Minor return code</strong>. For the values
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for a display file, see the <a href="../books/sc415715.pdf" target="_blank">Application Display Programming</a> <img src="wbpdf.gif" alt="Link to PDF" /> book. For the values for
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an ICF file, see the <a href="../books/sc415442.pdf" target="_blank">ICF
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Programming</a> <img src="wbpdf.gif" alt="Link to
PDF" /> book and the appropriate communications-type programmer's
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guide.</td>
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<td align="left" valign="top" width="14.814814814814813%" headers="d0e61 "><strong>Display, ICF</strong></td>
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</tr>
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<tr><td align="left" valign="top" width="13.333333333333334%" headers="d0e53 "><strong>38</strong></td>
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<td align="left" valign="top" width="17.59259259259259%" headers="d0e55 "><strong>Character</strong></td>
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<td align="left" valign="top" width="13.703703703703704%" headers="d0e57 "><strong>8</strong></td>
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<td align="left" valign="top" width="40.55555555555556%" headers="d0e59 "><strong>Systems Network Architecture (SNA) sense
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return code</strong>. For some return codes, this field might contain more detailed
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information about the reason for the error. For a description of the SNA sense
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codes, see the appropriate SNA book.</td>
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<td align="left" valign="top" width="14.814814814814813%" headers="d0e61 "><strong>ICF</strong></td>
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</tr>
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<tr><td align="left" valign="top" width="13.333333333333334%" headers="d0e53 "><strong>46</strong></td>
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<td align="left" valign="top" width="17.59259259259259%" headers="d0e55 "><strong>Character</strong></td>
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<td align="left" valign="top" width="13.703703703703704%" headers="d0e57 "><strong>1</strong></td>
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<td align="left" valign="top" width="40.55555555555556%" headers="d0e59 "><strong>Safe indicator:</strong> <dl><dt class="dlterm">0</dt>
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<dd>An end-of-text (ETX) control character has not been received.</dd>
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<dt class="dlterm">1</dt>
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<dd>An ETX control character has been received.</dd>
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</dl>
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</td>
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<td align="left" valign="top" width="14.814814814814813%" headers="d0e61 "><strong>ICF</strong></td>
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</tr>
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<tr><td align="left" valign="top" width="13.333333333333334%" headers="d0e53 "><strong>47</strong></td>
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<td align="left" valign="top" width="17.59259259259259%" headers="d0e55 "><strong>Character</strong></td>
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<td align="left" valign="top" width="13.703703703703704%" headers="d0e57 "><strong>1</strong></td>
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<td align="left" valign="top" width="40.55555555555556%" headers="d0e59 "><strong>Reserved.</strong></td>
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<td valign="top" width="14.814814814814813%" headers="d0e61 "> </td>
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</tr>
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<tr><td align="left" valign="top" width="13.333333333333334%" headers="d0e53 "><strong>48</strong></td>
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<td align="left" valign="top" width="17.59259259259259%" headers="d0e55 "><strong>Character</strong></td>
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<td align="left" valign="top" width="13.703703703703704%" headers="d0e57 "><strong>1</strong></td>
|
|
<td align="left" valign="top" width="40.55555555555556%" headers="d0e59 "><strong>Request Write (RQSWRT) command from remote
|
|
system/application.</strong> <dl><dt class="dlterm">0</dt>
|
|
<dd>RQSWRT not received</dd>
|
|
<dt class="dlterm">1</dt>
|
|
<dd>RQSWRT received</dd>
|
|
</dl>
|
|
</td>
|
|
<td align="left" valign="top" width="14.814814814814813%" headers="d0e61 "><strong>ICF</strong></td>
|
|
</tr>
|
|
<tr><td align="left" valign="top" width="13.333333333333334%" headers="d0e53 "><strong>49</strong></td>
|
|
<td align="left" valign="top" width="17.59259259259259%" headers="d0e55 "><strong>Character</strong></td>
|
|
<td align="left" valign="top" width="13.703703703703704%" headers="d0e57 "><strong>10</strong></td>
|
|
<td align="left" valign="top" width="40.55555555555556%" headers="d0e59 "><strong>Record format name received from the remote
|
|
server.</strong></td>
|
|
<td align="left" valign="top" width="14.814814814814813%" headers="d0e61 "><strong>ICF</strong></td>
|
|
</tr>
|
|
<tr><td align="left" valign="top" width="13.333333333333334%" headers="d0e53 "><strong>59</strong></td>
|
|
<td align="left" valign="top" width="17.59259259259259%" headers="d0e55 "><strong>Character</strong></td>
|
|
<td align="left" valign="top" width="13.703703703703704%" headers="d0e57 "><strong>4</strong></td>
|
|
<td align="left" valign="top" width="40.55555555555556%" headers="d0e59 "><strong>Reserved.</strong></td>
|
|
<td valign="top" width="14.814814814814813%" headers="d0e61 "> </td>
|
|
</tr>
|
|
<tr><td align="left" valign="top" width="13.333333333333334%" headers="d0e53 "><strong>63</strong></td>
|
|
<td align="left" valign="top" width="17.59259259259259%" headers="d0e55 "><strong>Character</strong></td>
|
|
<td align="left" valign="top" width="13.703703703703704%" headers="d0e57 "><strong>8</strong></td>
|
|
<td align="left" valign="top" width="40.55555555555556%" headers="d0e59 "><strong>Mode name.</strong></td>
|
|
<td align="left" valign="top" width="14.814814814814813%" headers="d0e61 "><strong>ICF</strong></td>
|
|
</tr>
|
|
<tr><td align="left" valign="top" width="13.333333333333334%" headers="d0e53 "><strong>71</strong></td>
|
|
<td align="left" valign="top" width="17.59259259259259%" headers="d0e55 "><strong>Character</strong></td>
|
|
<td align="left" valign="top" width="13.703703703703704%" headers="d0e57 "><strong>9</strong></td>
|
|
<td align="left" valign="top" width="40.55555555555556%" headers="d0e59 "><strong>Reserved.</strong></td>
|
|
<td valign="top" width="14.814814814814813%" headers="d0e61 "> </td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
</div>
|
|
</div>
|
|
<div>
|
|
<div class="familylinks">
|
|
<div class="parentlink"><strong>Parent topic:</strong> <a href="rbal3fedbk.htm" title="iSeries uses OS/400 messages and I/O feedback information to communicate the results of I/O operations to the program. The server updates the I/O feedback area for every successful I/O operation unless your program uses blocked record I/O.">I/O feedback area</a></div>
|
|
</div>
|
|
<div class="relconcepts"><strong>Related concepts</strong><br />
|
|
<div><a href="rbal3openiofba.htm" title="The server monitors the status of a file in feedback areas once it has successfully opened the file. As the server performs operations on a file, it updates the feedback areas to reflect the latest status. These feedback areas give you greater control over applications and provide important information when errors occur.">Monitor file status with the open and I/O feedback area</a></div>
|
|
</div>
|
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</div>
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</body>
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</html> |