Hi all
I have an old app that uses the win3 driver to draw in a HWND that is passed
from the app to the driver. I had also tweaked the HARU pdf driver to draw
into an existing pdf file rather than create one from scratch for the plot. I
now want to port the app to windows x64, and update it to the current version
of plplot.
The old win3 driver took a HWND as a command line argument, I intend to modify
the wingcc driver to do something similar rather than creating a window for
itself. Or is there a better windows driver to use?
Similarly the pdf driver takes a FILE*, initialises a new PDF document, draws
the graph, and saves the pdf file. I had modified the driver to skip the
opening and saving part, and just draw to a supplied handle. I intend to tidy
it up and submit it, so a couple of questions before I do so.
Supplying the HWND, HPDF_Doc and HPDF_Page handles to the drivers - is there a
better way than passing them as driver options through plsetopt()? This would
need a change to include a pointer type as a possible option. The alternative
would be adding a PLESC_DEVINIT handler (or similar) to the drivers and calling
pl_cmd to pass a handle straight to the driver. But currently there is no time
to set the handles between plinit() calling pllib_devinit() which sets the
dispatch table, and plP_init() which would create the handles. So it needs
either plPlotP.h to be included in the app so that pllib_devinit() can be
called from the app, or a new function that does the first part of plinit() to
set up the dispatch table, but stops to allow pl_cmd() calls before calling
plinit().
Should the entire pdf page be treated as the plplot surface, with the calling
program setting a viewport for the plot, or should I add options to specify the
surface as a bounded region within the page?
Should I just submit the changes when I am finished, or should I set up a
change request or something else?
Regards
Alan
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