Anthony Prechtl

I'm trying to create an external with a few inlets and I want the first one to allow floats. Regardless of what I try, however, when I send it a float in the left inlet, I see a message in the Max window that says that it doesn't understand floats. This is what I have done so far:

class_addmethod(c, (method)DTNyqMultiply_f0, "ft0", A_FLOAT, 0);

class_addmethod(c, (method)DTNyqMultiply_coefficients, "list", A_GIMME, 0);

class_addmethod(c, (method)DTNyqMultiply_samplingRate, "ft2", A_FLOAT, 0);

// create inlets (in reverse order), and the outlet

floatin(x, 0); // I have tried removing this; it doesn't make a difference

How can I get the left inlet to allow floats?

    class_addmethod(c, (method)DTNyqMultiply_f0, "ft0", A_FLOAT, 0);
    class_addmethod(c, (method)DTNyqMultiply_coefficients, "list", A_GIMME, 0);
    class_addmethod(c, (method)DTNyqMultiply_samplingRate, "ft2", A_FLOAT, 0);

    // create inlets (in reverse order), and the outlet
    floatin(x, 2);
    inlet_new(x, "list");
    floatin(x, 0); // I have tried removing this; it doesn't make a difference
    x->p_outlet = listout(x);

How can I get the left inlet to allow floats?


creating-an-external-with-a-left-inlet-allowing-floats

class_addmethod(c, (method)DTNyqMultiply_float, "float", A_FLOAT, 0);
class_addmethod(c, (method)DTNyqMultiply_samplingRate, "ft1", A_FLOAT, 0);
class_addmethod(c, (method)DTNyqMultiply_coefficients, "list", A_GIMME, 0);

// create inlets (in reverse order), and the outlet
floatin(x, 1);
x->p_outlet = listout(x);

void DTNyqMultiply_float(t_DTNyqMultiply *x, double f)
{

}

will receive floats sent to the left inlet ("float").

void DTNyqMultiply_samplingRate(t_DTNyqMultiply *x, double f)
{

}

will receive floats sent to the right inlet ("ft1").

void DTNyqMultiply_coefficients(t_DTNyqMultiply *x, t_symbol *sym, long argc, t_atom *argv)
{

}

will receive lists sent to the left inlet ("list").

You might want to read the MaxAPI SDK docs because it's all there...

That is helpful. Thanks. I think the problem is that I needed to write "float" instead of "ft0". By the way, I have been reading the SDK documentation but the examples are a bit scarce in the "Inlets and Outlets" page.

No, the examples are not scarce at all...

The SDK docs come accompanied with many open source Max/MSP/Jitter externals.

You can check out the code and compile it on your platform.

Although reading the manual is helpful to get a general understanding of the underlying API structure, checking out the code of the examples is crucial to learn how to accomplish specific tasks in code.

No, the examples are not scarce at all...
The SDK docs come accompanied with many open source Max/MSP/Jitter externals.
You can check out the code and compile it on your platform.
Although reading the manual is helpful to get a general understanding of the underlying API structure, checking out the code of the examples is crucial to learn how to accomplish specific tasks in code.

Creating an external with a left inlet allowing floats