<html> <head> <title>Developer's Guide: Plugins </title> </head> <body bgcolor=white text=black link=blue vlink=navy alink=red> <TABLE WIDTH="100%"> <TR> <TH ALIGN="left" WIDTH="33%"><img SRC="Images/arrow-left.png" WIDTH="16" HEIGHT="16" ALIGN="top" ALT="Prev"></TH> <TH ALIGN="center" WIDTH="33%"><img SRC="Images/arrow-up.png" WIDTH="16" HEIGHT="16" ALIGN="top" ALT="Up"></TH> <TH ALIGN="right" WIDTH="33%"><img SRC="Images/arrow-right.png" WIDTH="16" HEIGHT="16" ALIGN="top" ALT="Next"></TH> </TR> <TR> <TD ALIGN="left"><A HREF="devguide-19.html">The Undo Mechanism </A></TD> <TD ALIGN="center"><A HREF="devguide.html">Developer's Guide</A></TD> <TD ALIGN="right"><A HREF="devguide-25.html">User Interface </A></TD> </TR> </TABLE> <HR NOSHADE> <H1><FONT face="Helvetica,Arial"><A NAME="N1"></A>Plugins </font></H1> <P>Plugins provide a way to extend Sketch with external modules that can be maintained independently from Sketch itself. Plugin modules can define import and export filters for new file formats or they can define new object types.</P> <P>For this to work, Sketch has to provide a standardized interface to these modules to allow them to create and manipulate graphics objects. In addition, there has to be some fall-back method if someone loads a document containing objects defined by a plugin into an installation where that particular plugin is not available.</P> <H4><FONT face="Helvetica,Arial"><img SRC="Images/bullet.png" WIDTH="9" HEIGHT="9"><A HREF="devguide-21.html">Plugin Configuration</A></font></H4> <H4><FONT face="Helvetica,Arial"><img SRC="Images/bullet.png" WIDTH="9" HEIGHT="9"><A HREF="devguide-22.html">Import Filters </A></font></H4> <H4><FONT face="Helvetica,Arial"><img SRC="Images/bullet.png" WIDTH="9" HEIGHT="9"><A HREF="devguide-23.html">Export Filters </A></font></H4> <H4><FONT face="Helvetica,Arial"><img SRC="Images/bullet.png" WIDTH="9" HEIGHT="9"><A HREF="devguide-24.html">Plugin Objects </A></font></H4> <HR NOSHADE> <TABLE WIDTH="100%"> <TR> <TD ALIGN="left"><A HREF="devguide-19.html">The Undo Mechanism </A></TD> <TD ALIGN="center"><A HREF="devguide.html">Developer's Guide</A></TD> <TD ALIGN="right"><A HREF="devguide-25.html">User Interface </A></TD> </TR> <TR> <TH ALIGN="left" WIDTH="33%"><img SRC="Images/arrow-left.png" WIDTH="16" HEIGHT="16" ALIGN="top" ALT="Prev"></TH> <TH ALIGN="center" WIDTH="33%"><img SRC="Images/arrow-up.png" WIDTH="16" HEIGHT="16" ALIGN="top" ALT="Up"></TH> <TH ALIGN="right" WIDTH="33%"><img SRC="Images/arrow-right.png" WIDTH="16" HEIGHT="16" ALIGN="top" ALT="Next"></TH> </TR> </TABLE> </body> </html>
