Thanks for those links Monetus. I'm pretty close with my existing setup and will first try to work with that when I have some more time. Some of the output from the samples/cpp/pdtest appears to be as expected.

However, from main.cpp

    cout << endl << "BEGIN Patch Test" << endl;
    
    // open patch
    Patch patch = pd.openPatch("pd/test.pd", ".");
    cout << patch << endl;
    
    // close patch
    pd.closePatch(patch);
    cout << patch << endl;
    
    // open patch again
    patch = pd.openPatch(patch);
    cout << patch << endl;
    
    // process any received messages
    //
    // in a normal case (not a test like this), you would call this in
    // your application main loop
    pd.processFloat(1, inbuf, outbuf);
    pd.receiveMessages();
    
    cout << "FINISH Patch Test" << endl;

the response

BEGIN Patch Test
Patch: "pd/test.pd" $0: 1003 valid: 1
Patch: "pd/test.pd" $0: 0 valid: 0
Patch: "pd/test.pd" $0: 1005 valid: 1
PD: PATCH OPENED: 1003
print: 0
PD: PATCH OPENED: 1005
print: 0
FINISH Patch Test

seems right but no patch was opened and if I already opened that patch before running the executable, none of the print messages (called later in the code) showed up in the console of pd. I'll focus on this and try to repost to the forum when I have a better idea of what is going on.

Hi! I am running Pd-0.47-1-64bit on Mac OS 10.11.6 and libpd 0.9.2. I am trying to work with the samples/cpp/pdtest. Here's the github repo. I currently have an app that takes video and spits out a 2D array of color values for regions of interest to file. I have a pd patch that then loads those into a table and plays the corresponding pitch. I need the two (patch, c++ app) to coordinate the IPC.

I compiled the cpp code in the samples directory however, when running pdtest executable there is no patch opened. Is this by design? I was not able to find a pd-vanilla to build from source so took the most recent (pd-0.47-1-64bit.mac.tar.gz). Does libpd need to have the pd built after libpd? If so, can anyone please point me to a src file?

Here is a truncated output from running the compiled pdtest. Could someone tell me if this is what is expected?

Thank you for your help.

BEGIN Patch Test
Patch: "pd/test.pd" $0: 1003 valid: 1
Patch: "pd/test.pd" $0: 0 valid: 0
Patch: "pd/test.pd" $0: 1005 valid: 1
PD: PATCH OPENED: 1003
print: 0
PD: PATCH OPENED: 1005
print: 0
FINISH Patch Test

BEGIN Message Test
FINISH Message Test

BEGIN MIDI Test
FINISH MIDI Test

BEGIN Array Test
array1 len: 10
array1 0.0857145 0.328572 0.500001 0.57143 0.514287 0.47143 0.357144 0.285715 0.057143 0
array1 0 1 2 3 4 5 6 7 8 9
array1 10 10 10 10 10 10 10 10 10 10
FINISH Array Test

BEGIN PD Test
FINISH PD Test

Processing PD
PD: bang
PD: 100
PD: symbol test string
PD: bang
PD: 100
PD: symbol test string
PD: 1.23 a symbol
PD dollar zero: 1.23 a symbol
PD: 1.23 sent from a List object
PD: msg 1.23 sent from a List object
PD: 1.23 sent from a streamed list
PD MIDI: notein 2 60 64
PD MIDI: ctlin 2 0 64
PD MIDI: pgm 2 101
PD MIDI: midiin 1 239
PD: symbol test
PD: START MSG TEST
CPP: bang toCPP
CPP: float toCPP: 100
CPP: symbol toCPP: kaaa
CPP: list toCPP: 100 2.3 test 1 2 3 ffsfff
CPP: message toCPP: kaa 1 2.3 test ffs
PD: MSG TEST FINISH
PD: START MIDI TEST
PD: MIDI TEST FINISHED
PD: START ARRAY TEST
PD array1: 10
PD array1: 10
PD array1: 10
PD array1: 10
PD array1: 10
PD array1: 10
PD array1: 10
PD array1: 10
PD array1: 10
PD array1: 10
PD: FINISH ARRAY TEST
PD: test_abs: Hello World!
CPP MIDI: note on: 0 0 127
CPP MIDI: note on: 0 0 127
CPP MIDI: note on: 0 60 64
CPP MIDI: control change: 0 64 100
CPP MIDI: program change: 0 99
CPP MIDI: pitch bend: 0 2000
CPP MIDI: aftertouch: 0 100
CPP MIDI: poly aftertouch: 0 64 100
CPP MIDI: midi byte: 0 239
CPP: float env: 75.5457
CPP: float env: 87.9506
CPP: float env: 93.5842
...

CPP: float env: 88.5503
CPP: float env: 87.7612
print: 1
CPP MIDI: note on: 0 0 0
CPP MIDI: note on: 0 1 127
CPP: float env: 86.8932
...

CPP: float env: 41.2584
CPP: float env: 0
print: 2
CPP MIDI: note on: 0 1 0
CPP MIDI: note on: 0 2 127
...

print: 20
CPP MIDI: note on: 0 19 0
CPP MIDI: note on: 0 20 127