Made XPUI.nsh add the Plugin and Include directories relative to XPUI_SYSDIR to make detached installations work better.
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<h1>Useful macros</h1>
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Of course, there are macros that the ExperienceUI uses for its system that are great in your script. Here are a few:<br>
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<b>XPUI_SET</b> <font color=#294F75>Symbol Value</font> - Defines a symbol, and sets it to the value specified. If the symbol is
already defined, its value will be overwritten.<br>
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<b>XPUI_UNSET</b> <font color=#294F75>Symbol</font> - !undefs a symbol if it is defined. This is a safer way to undefine a symbol,
because if you try to undefine a symbol using !undef, and it isn't defined, MakeNSIS will stop compiling your script.<br>
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<b>XPUI_DEFAULT</b> <font color=#294F75>Symbol Value</font> - Defines a symbol. If the symbol is already defined, its value will
<b>not</b> be overwritten.<br>
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<b>XPUI_INNERDIALOG_TEXT</b> <font color=#294F75>Text Control_ID</font> - Sets control Control_ID to Text on the inner dialog (RECT
1018).<br>
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<b>XPUI_PAGECOLOR_INIT</b> <font color=#294F75>Control_ID</font> - Sets Control_ID on the <b>inner child window</b> to the XPUI
dialog colors.<br>
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<b>XPUI_PAGEBG_INIT</b> <font color=#294F75></font> - Sets control 1005 on the inner dialog to the background color.<br>
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<b>XPUI_SET_BG</b> <font color=#294F75></font> - Initializes the background image. Use this if you have a) a custom skin, and b)
if you have custom pages that occur before the first ExperienceUI-native page.<br>
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<p class=footer>Copyright © 2004-2006 Dan Fuhry. All rights except those explicitly given in the <a href=license_agreement.htm style=color:#A0A0D0 onmouseover="this.style.color='#A0A0A0'" onmouseout="this.style.color='#A0A0D0'">license agreement</a> reserved.</p>
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