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Dennis Heuer | 1 Aug 2002 21:02

ghostscript docs

Hi!

I couldn't find a community mailinglist under your www.ghostscript.com
Mailing Lists. So I write to here since I would like to program for a
ghostscript viewer. The documentation of the ghostscript API is not very
fleshy and one has to go directly into the gs-code which is not very
helpful for the beginner. Is there some free and more descriptive API
description available somewhere (not the docs listed on the project
page)?

greetings

Dennis
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Damijan Dolenec | 12 Aug 2002 08:03
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ActiveX control useing gsdll32.dll

I have developed this ActiveX control using GS v5.10. And it works just fine except for one thing. On some computers zoom isn’t working. I realized zoom with changing the resolution. I don’t know if this is the right way to do it (because GSview is working OK on those computers). Error occurs in gsdll_execute_cont(). Function itself doesn’t report any error, but an exception window (like with alert) is raised and image isn’t displayed.

 

To avoid this error I tried with GS v5.50 and GS v7.04. The zoom bug is still here, but something weird is happening: ActiveX with GSv5.10 is working OK, even if application uses more than one control simultaneously. But with GSv5.50 or GSv7.04 function gsdll_init() returns GSDLL_INIT_IN_USE which is used in win 3.1 only (just when multiple instances of  this ActiveX control is used). First instance initializes and works ok. All next instances fail.

 

I would be very thankful if someone could help…

 

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Gmane