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On Mon, Jan 23, 2012 at 4:27 AM, joma <[email protected]> wrote:
> Hi everybody,
>
> I want to call a (already compiled) c-program within android.
> For example I want to read the status of frontkeys of a tablet PC via
> I/O. This is working fine in an extra program.
> This extra program now returns the value of a pressed key and android
> then should work with it. (fe. make the screen brighter).
>
> I'm trying to call the c-program with
> bits9 = system("readFrontKey");
>
>        if (bits9 == 64)
>              entryno = 1;
>
>        if (bits9 == 32)
>              entryno = 2;
>
>        if (bits9 == 16)
>          entryno = 3;
>
>
> The source-file has stdlib.h included at its beginning.
>
> Unfortunately on compiling and linking the project I get an error.
> undefined reference to `system'
>
> I've already been trying several things to solve this but nothing
> worked out.
> Or do you have other ideas on how to call the readFrontKey-program?
>
> Any advince would be appreciated.
>
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