Daniel Rentz wrote:
Gonzalo Diethelm wrote:
Hello,

I am a TOTAL newbie (read: never done anything) when it comes to
developing for OpenOffice.org. But I have done some development of MS
Excel add-ins in C, which end up being registered as additional
functions directly callable from an Excel spreadsheet. So, to make my
question clearer, let's say I have a pure C (not C++) module with one
public function:

  int get_easter(int year, int* month, int* day);

Given a year (i.e. 2007), it will put into month and day the date for
Easter that year (i.e. month == 4, day == 8), and return something
useful (say, the int value 20070408). The question is: how can I make
this function available in Spreadsheet, so that I can write in any given
cell:

Note that you cannot specify out-parameters in Calc addins (i.e. you cannot pass back a value in 'month' and 'day' parameters), only a single
:-) an important detail. I've read over this detail but Daniel is right, out parameters are not allowed here.

Juergen

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