https://nsis.sourceforge.io/mediawiki/index.php?action=history&feed=atom&title=Reference%2FReadRegStr 2026-06-06T23:12:48Z Revision history for this page on the wiki MediaWiki 1.39.17 https://nsis.sourceforge.io/mediawiki/index.php?title=Reference/ReadRegStr&diff=24496&oldid=prev 2015-06-15T17:46:01Z

<p><span dir="auto"><span class="autocomment">ReadRegStr: </span> Document behavior on string overflow</span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 17:46, 15 June 2015</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l3">Line 3:</td> <td colspan="2" class="diff-lineno">Line 3:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>  user_var(output) root_key sub_key name</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>  user_var(output) root_key sub_key name</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Reads from the registry into the user variable $x. Valid values for root_key are listed under [[Reference/WriteRegStr|WriteRegStr]]. The error flag will be set and $x will be set to an empty string (&quot;&quot;) if the string is not present. If the value is present, but is of type REG_DWORD, it will be read and converted to a string and the error flag will be set.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Reads from the registry into the user variable $x. Valid values for root_key are listed under [[Reference/WriteRegStr|WriteRegStr]]. The error flag will be set and $x will be set to an empty string (&quot;&quot;) if the string is not present <ins style="font-weight: bold; text-decoration: none;">or longer than NSIS_MAX_STRLEN</ins>. If the value is present, but is of type REG_DWORD, it will be read and converted to a string and the error flag will be set.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>&lt;highlight-nsis&gt;ReadRegStr $0 HKLM Software\NSIS &quot;&quot;</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>&lt;highlight-nsis&gt;ReadRegStr $0 HKLM Software\NSIS &quot;&quot;</div></td></tr> <!-- diff cache key n22049_wiki-wiki_:diff::1.12:old-23613:rev-24496 --> </table>

ChrFranke https://nsis.sourceforge.io/mediawiki/index.php?title=Reference/ReadRegStr&diff=23613&oldid=prev 2013-06-04T20:20:58Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 20:20, 4 June 2013</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l7">Line 7:</td> <td colspan="2" class="diff-lineno">Line 7:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>&lt;highlight-nsis&gt;ReadRegStr $0 HKLM Software\NSIS &quot;&quot;</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>&lt;highlight-nsis&gt;ReadRegStr $0 HKLM Software\NSIS &quot;&quot;</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>DetailPrint &quot;NSIS is installed at: $0&quot;&lt;/highlight-nsis&gt;</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>DetailPrint &quot;NSIS is installed at: $0&quot;&lt;/highlight-nsis&gt;</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">''Command introduced with NSIS v1.2g''</ins></div></td></tr> <!-- diff cache key n22049_wiki-wiki_:diff::1.12:old-21300:rev-23613 --> </table>

Jan https://nsis.sourceforge.io/mediawiki/index.php?title=Reference/ReadRegStr&diff=21300&oldid=prev 2011-11-25T17:05:15Z

<p>Created page with &quot;=ReadRegStr= user_var(output) root_key sub_key name Reads from the registry into the user variable $x. Valid values for root_key are listed under [[Reference/WriteRegStr|Write...&quot;</p> <p><b>New page</b></p><div>=ReadRegStr=<br /> <br /> user_var(output) root_key sub_key name<br /> <br /> Reads from the registry into the user variable $x. Valid values for root_key are listed under [[Reference/WriteRegStr|WriteRegStr]]. The error flag will be set and $x will be set to an empty string (&quot;&quot;) if the string is not present. If the value is present, but is of type REG_DWORD, it will be read and converted to a string and the error flag will be set.<br /> <br /> &lt;highlight-nsis&gt;ReadRegStr $0 HKLM Software\NSIS &quot;&quot;<br /> DetailPrint &quot;NSIS is installed at: $0&quot;&lt;/highlight-nsis&gt;</div>

Jan