Library /sys$common/syshlp/basichelp.hlb Graphics, GRAPH_METAFILE *Conan The Librarian (sorry for the slow response - running on an old VAX) |
Graphics images can be stored in files called metafiles. Metafiles provide you with a convenient means of storing and reproducing graphics images. They allow you to recreate an image without repeatedly processing the data. To create a metafile, you use the OPEN...FOR GRAPHICS statement specifying a file as device type 2. Output will be sent to the specified file. Once the metafile is created, it can be displayed with the GRAPH METAFILE statement. Example !+ !Open and send output to an output metafile !- OPEN "[MCKAY]swan.pic" FOR GRAPHICS AS DEVICE #1 , TYPE 2 EXTERNAL PICTURE swan DRAW swan CLOSE DEVICE #1 !+ !Display contents of metafile on default device !- GRAPH METAFILE "[MCKAY]swan.pic" END
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