On 26/04/06, IOhannes m zmoelnig zmoelnig@iem.at wrote:

walter jenner wrote:

...

hello there..

i tried to make the helloworld external described in j.m.zmoelnigs "howto write an external for pd".

great!

...

i used visual studio .net 2003 to build the dll, and had no errors with it.

then i tried using the external, and this did not work. the dll resides in the same directory as the pd file which should use the helloworld object.

i get this error from the pd main window:

load_object: Symbol "helloworld_setup" not found helloworld ... couldn't create

what a possible mistakes i could have made?

most likely you haven't read the archives...

http://lists.puredata.info/search/PD-dev?query=helloworld http://lists.puredata.info/search/PD-list?query=helloworld

you must declare a function to be exported, in order to make pd see it; in this case this would be "helloworld_setup"

specifically, you need to export it like this (for a windows dll):

extern "C" __declspec( dllexport ) void helloworld_setup(void) { ...

pete.