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  #1  
Old 06-03-2016, 01:38 PM
Ciccio Ciccio is offline
Member
  
Join Date: Jun 2016
Posts: 6
Import viz from c++
Hello,

I wrote my Vizard (5.0) program in py and every work perfectly. Right now, I'm trying to write a program c++ that load the python code and call all the different functions that I wrote (using Python.h).
Everything works fine if I don't import any vizard module but if in my python code I have one or more import viz (or related) the python return this error: "viz module can only be imported by Vizard".

Can anyone help me?

this is my code python:
Code:
import sys
sys.path.append('C:/Program Files/WorldViz/Vizard5/python')
import viz


def add(a, b):
	return a+b
and this is my main c++
Code:
#include "stdafx.h"
#include <stdio.h>
#include <stdlib.h>
#include <string>
#ifdef _DEBUG
#undef _DEBUG
#include <Python.h>
#define _DEBUG
#else
#include <Python.h>
#endif


static const char* PLUGIN_NAME = "Sample";

void PrintTotalRefCount()
{
#ifdef Py_REF_DEBUG
	PyObject* refCount = PyObject_CallObject(PySys_GetObject((char*)"gettotalrefcount"), NULL);
	std::clog << "total refcount = " << PyInt_AsSsize_t(refCount) << std::endl;
	Py_DECREF(refCount);
#endif
}

std::string CallPlugIn(const std::string& ln)
{
	PyObject* name = PyString_FromString(PLUGIN_NAME);
	PyObject* pluginModule = PyImport_Import(name);
	Py_DECREF(name);
	if (!pluginModule)
	{
		PyErr_Print();
		return "Error importing module";
	}
	PyObject* filterFunc = PyObject_GetAttrString(pluginModule, "filterFunc");
	Py_DECREF(pluginModule);
	if (!filterFunc)
	{
		PyErr_Print();
		return "Error retrieving 'filterFunc'";
	}
	PyObject* args = Py_BuildValue("(s)", ln.c_str());
	if (!args)
	{
		PyErr_Print();
		Py_DECREF(filterFunc);
		return "Error building args tuple";
	}
	PyObject* resultObj = PyObject_CallObject(filterFunc, args);
	Py_DECREF(filterFunc);
	Py_DECREF(args);
	if (!resultObj)
	{
		PyErr_Print();
		return "Error invoking 'filterFunc'";
	}
	const char* resultStr = PyString_AsString(resultObj);
	if (!resultStr)
	{
		PyErr_Print();
		Py_DECREF(resultObj);
		return "Error converting result to C string";
	}
	std::string result = resultStr;
	Py_DECREF(resultObj);
	return result;
}

int main(int argc, char* argv[])
{
	Py_Initialize();
	PyObject* sysPath = PySys_GetObject((char*)"path");
	PyObject* curDir = PyString_FromString(".");
	PyList_Append(sysPath, curDir);
	Py_DECREF(curDir);
	std::string input;
	
	CallPlugIn(input);
	PrintTotalRefCount();

	Py_Finalize();
	system("PAUSE");
	return 0;
}
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  #2  
Old 06-05-2016, 08:39 PM
Jeff Jeff is offline
WorldViz Team Member
  
Join Date: Aug 2008
Posts: 2,471
You can extend Vizard/Python code with C++ code but I'm not sure it's possible to call Vizard modules from a C++ application. Can you describe what you would like to accomplish and I can check further with a developer? Also, take a look at the Vizard SDK docs, this maybe helpful.
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  #3  
Old 06-06-2016, 04:20 AM
Ciccio Ciccio is offline
Member
  
Join Date: Jun 2016
Posts: 6
Quote:
Originally Posted by Jeff View Post
You can extend Vizard/Python code with C++ code but I'm not sure it's possible to call Vizard modules from a C++ application. Can you describe what you would like to accomplish and I can check further with a developer? Also, take a look at the Vizard SDK docs, this maybe helpful.
I want to create a sort of virtual programming language (like this) in c++ and I would like to call vizard function in my code c++ to make some action like: add an avatar, move etc.. does it exist some other ways to do this?
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  #4  
Old 06-06-2016, 06:16 AM
Ciccio Ciccio is offline
Member
  
Join Date: Jun 2016
Posts: 6
I think I figured out how to call Viz using SDK (a mix of buttonDown and command, I will post my code once I will finish it) but right now I have another question, is it possible to add an c++ extension from a dll and not a dle? I just found this
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  #5  
Old 06-07-2016, 03:21 PM
Ciccio Ciccio is offline
Member
  
Join Date: Jun 2016
Posts: 6
I think I'm getting closer, I created my own extension and from it I load the sensor but I've got a problem:
CExtension.cpp
Code:

extern "C" __declspec(dllexport) viz::Extension* CreateVizardExtension(viz::Data &data)
{
	return new CExtension();
}

viz::Referenced* CExtension::createSensor(viz::Data &data)
{
	int command = data.getInt("command");
	return CSensor::Instance();
}
here is the code of CSensor
Code:
CSensor* CSensor::singleton = NULL;

CSensor::CSensor()
{
	setDataSize(10);
	setVision(false);
	setOculus(true);
	setGyroscope(false);
	setSpeed(1);
	m_data[ISREADY] = VizENum::Off;
}

void CSensor::command(viz::Data &data)
{
	switch (data.getInt("command")) {
	default:
		break;
	case ERRORVIZARD:
		setConnected(false);
		break;
	case ACKNOLEDGECOMMAND:
		setAcknoledge(true);
		break;
	case DATACOMMANDR:
		setDataR(data.getFloat("x"),
			data.getFloat("y"),
			data.getFloat("z"));
		break; 
	case DATACOMMANDL:
			setDataL(data.getFloat("x"),
				data.getFloat("y"),
				data.getFloat("z"));
			break;
	}
}

int CSensor::getSourceType() const
{
	return VIZ_LINK_POS;
}

CSensor* CSensor::Instance()
{
	if (singleton == NULL)
		singleton = new CSensor();
	return singleton;
}
and this is Vizard
Code:
ex=viz.add('BMI.Vizard.dle')
self.sensor =  ex.addSensor()
when from Vizard I call ex.addSensor() the program crash with this report
Code:
Dump Summary
------------
Dump File:	crashdump.dmp : C:\Users\ASDAP\AppData\Local\CrashRpt\UnsentCrashReports\Vizard (32-bit)_4.09.0016\5ac47f9d-2fa6-4037-b442-22e676c841c9\crashdump.dmp
Last Write Time:	07/06/2016 19:11:40
Process Name:	winviz.exe : C:\Program Files (x86)\WorldViz\Vizard4\bin\winviz.exe
Process Architecture:	x86
Exception Code:	0xC0000005
Exception Information:	The thread tried to read from or write to a virtual address for which it does not have the appropriate access.
Heap Information:	Not Present

System Information
------------------
OS Version:	6.1.7601
CLR Version(s):	

Modules
-------
Module Name	Module Path	Module Version
-----------	-----------	--------------
winviz.exe	C:\Program Files (x86)\WorldViz\Vizard4\bin\winviz.exe	4.0.0.0
ntdll.dll	C:\Windows\SysWOW64\ntdll.dll	6.1.7601.23418
kernel32.dll	C:\Windows\SysWOW64\kernel32.dll	6.1.7601.23418
KERNELBASE.dll	C:\Windows\SysWOW64\KERNELBASE.dll	6.1.7601.23418
user32.dll	C:\Windows\SysWOW64\user32.dll	6.1.7601.19061
gdi32.dll	C:\Windows\SysWOW64\gdi32.dll	6.1.7601.23418
lpk.dll	C:\Windows\SysWOW64\lpk.dll	6.1.7601.19146
usp10.dll	C:\Windows\SysWOW64\usp10.dll	1.626.7601.19054
msvcrt.dll	C:\Windows\SysWOW64\msvcrt.dll	7.0.7601.17744
advapi32.dll	C:\Windows\SysWOW64\advapi32.dll	6.1.7601.23418
sechost.dll	C:\Windows\SysWOW64\sechost.dll	6.1.7601.18869
rpcrt4.dll	C:\Windows\SysWOW64\rpcrt4.dll	6.1.7601.23418
sspicli.dll	C:\Windows\SysWOW64\sspicli.dll	6.1.7601.23418
CRYPTBASE.dll	C:\Windows\SysWOW64\CRYPTBASE.dll	6.1.7601.23418
comdlg32.dll	C:\Windows\SysWOW64\comdlg32.dll	6.1.7601.17514
shlwapi.dll	C:\Windows\SysWOW64\shlwapi.dll	6.1.7601.17514
comctl32.dll	C:\Windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.7601.18837_none_41e855142bd5705d\comctl32.dll	6.10.7601.18837
shell32.dll	C:\Windows\SysWOW64\shell32.dll	6.1.7601.19135
imm32.dll	C:\Windows\System32\imm32.dll	6.1.7601.17514
msctf.dll	C:\Windows\SysWOW64\msctf.dll	6.1.7601.18731
wininet.dll	C:\Windows\SysWOW64\wininet.dll	11.0.9600.18315
api-ms-win-downlevel-user32-l1-1-0.dll	C:\Windows\SysWOW64\api-ms-win-downlevel-user32-l1-1-0.dll	6.2.9200.16492
api-ms-win-downlevel-shlwapi-l1-1-0.dll	C:\Windows\SysWOW64\api-ms-win-downlevel-shlwapi-l1-1-0.dll	6.2.9200.16492
api-ms-win-downlevel-version-l1-1-0.dll	C:\Windows\SysWOW64\api-ms-win-downlevel-version-l1-1-0.dll	6.2.9200.16492
version.dll	C:\Windows\System32\version.dll	6.1.7600.16385
api-ms-win-downlevel-normaliz-l1-1-0.dll	C:\Windows\SysWOW64\api-ms-win-downlevel-normaliz-l1-1-0.dll	6.2.9200.16492
normaliz.dll	C:\Windows\SysWOW64\normaliz.dll	6.1.7600.16385
iertutil.dll	C:\Windows\SysWOW64\iertutil.dll	11.0.9600.18315
api-ms-win-downlevel-advapi32-l1-1-0.dll	C:\Windows\SysWOW64\api-ms-win-downlevel-advapi32-l1-1-0.dll	6.2.9200.16492
userenv.dll	C:\Windows\SysWOW64\userenv.dll	6.1.7601.17514
profapi.dll	C:\Windows\SysWOW64\profapi.dll	6.1.7600.16385
setupapi.dll	C:\Windows\SysWOW64\setupapi.dll	6.1.7601.17514
cfgmgr32.dll	C:\Windows\SysWOW64\cfgmgr32.dll	6.1.7601.17621
oleaut32.dll	C:\Windows\SysWOW64\oleaut32.dll	6.1.7601.19144
ole32.dll	C:\Windows\SysWOW64\ole32.dll	6.1.7601.23392
devobj.dll	C:\Windows\SysWOW64\devobj.dll	6.1.7601.17621
clbcatq.dll	C:\Windows\SysWOW64\clbcatq.dll	2001.12.8530.16385
cryptsp.dll	C:\Windows\System32\cryptsp.dll	6.1.7601.18741
rsaenh.dll	C:\Windows\System32\rsaenh.dll	6.1.7600.16385
RpcRtRemote.dll	C:\Windows\System32\RpcRtRemote.dll	6.1.7601.17514
ws2_32.dll	C:\Windows\SysWOW64\ws2_32.dll	6.1.7601.17514
nsi.dll	C:\Windows\SysWOW64\nsi.dll	6.1.7600.16385
inetmib1.dll	C:\Windows\System32\inetmib1.dll	6.1.7601.17514
IPHLPAPI.DLL	C:\Windows\System32\IPHLPAPI.DLL	6.1.7601.17514
winnsi.dll	C:\Windows\System32\winnsi.dll	6.1.7600.16385
snmpapi.dll	C:\Windows\System32\snmpapi.dll	6.1.7600.16385
wsock32.dll	C:\Windows\System32\wsock32.dll	6.1.7600.16385
mswsock.dll	C:\Windows\System32\mswsock.dll	6.1.7601.18254
WSHTCPIP.DLL	C:\Windows\System32\WSHTCPIP.DLL	6.1.7600.16385
viz_python.dll	C:\Program Files (x86)\WorldViz\Vizard4\bin\viz_python.dll	0.0.0.0
vizcore.dll	C:\Program Files (x86)\WorldViz\Vizard4\bin\vizcore.dll	0.0.0.0
opengl32.dll	C:\Windows\System32\opengl32.dll	6.1.7600.16385
glu32.dll	C:\Windows\System32\glu32.dll	6.1.7600.16385
ddraw.dll	C:\Windows\System32\ddraw.dll	6.1.7600.16385
dciman32.dll	C:\Windows\System32\dciman32.dll	6.1.7601.19146
dwmapi.dll	C:\Windows\System32\dwmapi.dll	6.1.7601.18917
osg.dll	C:\Program Files (x86)\WorldViz\Vizard4\bin\osg.dll	2.9.12.72
OpenThreads.dll	C:\Program Files (x86)\WorldViz\Vizard4\bin\OpenThreads.dll	2.5.0.12
msvcr90.dll	C:\Windows\winsxs\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.6161_none_50934f2ebcb7eb57\msvcr90.dll	9.0.30729.6161
msvcp90.dll	C:\Windows\winsxs\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.6161_none_50934f2ebcb7eb57\msvcp90.dll	9.0.30729.6161
osgDB.dll	C:\Program Files (x86)\WorldViz\Vizard4\bin\osgDB.dll	2.9.12.72
osgUtil.dll	C:\Program Files (x86)\WorldViz\Vizard4\bin\osgUtil.dll	2.9.12.72
zlib1.dll	C:\Program Files (x86)\WorldViz\Vizard4\bin\zlib1.dll	1.2.5.0
osgText.dll	C:\Program Files (x86)\WorldViz\Vizard4\bin\osgText.dll	2.9.12.72
osgParticle.dll	C:\Program Files (x86)\WorldViz\Vizard4\bin\osgParticle.dll	2.9.12.72
quartz.dll	C:\Windows\System32\quartz.dll	6.6.7601.19091
winmm.dll	C:\Windows\System32\winmm.dll	6.1.7601.17514
psapi.dll	C:\Windows\SysWOW64\psapi.dll	6.1.7600.16385
python27.dll	C:\Program Files (x86)\WorldViz\Vizard4\bin\python27.dll	2.7.2150.1013
CrashRpt1300.dll	C:\Program Files (x86)\WorldViz\Vizard4\bin\CrashRpt1300.dll	1.3.0.0
uxtheme.dll	C:\Windows\System32\uxtheme.dll	6.1.7600.16385
wintrust.dll	C:\Windows\SysWOW64\wintrust.dll	6.1.7601.18839
crypt32.dll	C:\Windows\SysWOW64\crypt32.dll	6.1.7601.18839
msasn1.dll	C:\Windows\SysWOW64\msasn1.dll	6.1.7601.17514
_hashlib.pyd	C:\Program Files (x86)\WorldViz\Vizard4\bin\DLLs\_hashlib.pyd	0.0.0.0
transform.pyd	C:\Program Files (x86)\WorldViz\Vizard4\bin\DLLs\transform.pyd	0.0.0.0
_ctypes.pyd	C:\Program Files (x86)\WorldViz\Vizard4\bin\DLLs\_ctypes.pyd	0.0.0.0
BMI.Vizard.dle	C:\Users\ASDAP\Documents\Francesco\BMI v3.0\Debug\Viz\BMI.Vizard.dle	0.0.0.0
msvcp140.dll	C:\Windows\System32\msvcp140.dll	14.0.23918.0
VCRUNTIME140.dll	C:\Windows\System32\VCRUNTIME140.dll	14.0.23918.0
api-ms-win-crt-runtime-l1-1-0.dll	C:\Windows\System32\api-ms-win-crt-runtime-l1-1-0.dll	10.0.10586.9
ucrtbase.dll	C:\Windows\System32\ucrtbase.dll	10.0.10586.9
api-ms-win-core-timezone-l1-1-0.dll	C:\Windows\System32\api-ms-win-core-timezone-l1-1-0.dll	10.0.10586.9
api-ms-win-core-file-l2-1-0.dll	C:\Windows\System32\api-ms-win-core-file-l2-1-0.dll	10.0.10586.9
api-ms-win-core-localization-l1-2-0.dll	C:\Windows\System32\api-ms-win-core-localization-l1-2-0.dll	10.0.10586.9
api-ms-win-core-synch-l1-2-0.dll	C:\Windows\System32\api-ms-win-core-synch-l1-2-0.dll	10.0.10586.9
api-ms-win-core-processthreads-l1-1-1.dll	C:\Windows\System32\api-ms-win-core-processthreads-l1-1-1.dll	10.0.10586.9
api-ms-win-core-file-l1-2-0.dll	C:\Windows\System32\api-ms-win-core-file-l1-2-0.dll	10.0.10586.9
api-ms-win-crt-string-l1-1-0.dll	C:\Windows\System32\api-ms-win-crt-string-l1-1-0.dll	10.0.10586.9
api-ms-win-crt-heap-l1-1-0.dll	C:\Windows\System32\api-ms-win-crt-heap-l1-1-0.dll	10.0.10586.9
api-ms-win-crt-stdio-l1-1-0.dll	C:\Windows\System32\api-ms-win-crt-stdio-l1-1-0.dll	10.0.10586.9
api-ms-win-crt-convert-l1-1-0.dll	C:\Windows\System32\api-ms-win-crt-convert-l1-1-0.dll	10.0.10586.9
api-ms-win-crt-locale-l1-1-0.dll	C:\Windows\System32\api-ms-win-crt-locale-l1-1-0.dll	10.0.10586.9
api-ms-win-crt-math-l1-1-0.dll	C:\Windows\System32\api-ms-win-crt-math-l1-1-0.dll	10.0.10586.9
api-ms-win-crt-multibyte-l1-1-0.dll	C:\Windows\System32\api-ms-win-crt-multibyte-l1-1-0.dll	10.0.10586.9
api-ms-win-crt-time-l1-1-0.dll	C:\Windows\System32\api-ms-win-crt-time-l1-1-0.dll	10.0.10586.9
api-ms-win-crt-filesystem-l1-1-0.dll	C:\Windows\System32\api-ms-win-crt-filesystem-l1-1-0.dll	10.0.10586.9
api-ms-win-crt-environment-l1-1-0.dll	C:\Windows\System32\api-ms-win-crt-environment-l1-1-0.dll	10.0.10586.9
api-ms-win-crt-utility-l1-1-0.dll	C:\Windows\System32\api-ms-win-crt-utility-l1-1-0.dll	10.0.10586.9
apphelp.dll	C:\Windows\System32\apphelp.dll	6.1.7601.19050
any idea?
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