#Make Foreign PICT
alan,
Making a PICT file which only consists of one 8-bit pixmap would not really
be that difficult. In this regard, PICT is not any more difficult to export
to than TIFF (as a matter of fact, TIFF is much nastier!). Just write out a
512 byte header, the low-order word of your total pic size, your picture
rectangle. Then write out the static header stuff for the PICT 2 format and
finish it off by writing the opcode for pixmap data (according to IM 5) and
then the pixmap dat itself. Not too bad. Just be aware of your byte
swapping. If you want to pack your data, the PackBits algorithm is
mindlessly simple and is supported by the pixmap opcode. The algorithm is
in a technote somewhere.
Good Luck,
Ed Ludwig, Abbott Systems
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