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Add another example of interop between C++ and Python #8044

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merged 6 commits into from
Oct 30, 2024
Merged

Add another example of interop between C++ and Python #8044

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bb3d9f7
Add native example for Python calling native code
rchiodo Oct 29, 2024
4c4bbfd
Ignore C++ output
rchiodo Oct 29, 2024
bbb4a62
Remove DLL output
rchiodo Oct 29, 2024
23d4b1f
Remove more dll output
rchiodo Oct 29, 2024
469bcd7
Sub gitignore
rchiodo Oct 29, 2024
87714bc
Fix mixed stacks in simple case
rchiodo Oct 30, 2024
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6 changes: 6 additions & 0 deletions .gitignore
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Expand Up @@ -30,3 +30,9 @@ __pycache__/
/Python/*.VC.db
/node_modules/*
*.binlog
*.dll
*.obj
*.ilk
*.log
*.pch
*.tlog
1 change: 1 addition & 0 deletions Examples/PythonCallingNative/.gitignore
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x64/**/*.*
1 change: 1 addition & 0 deletions Examples/PythonCallingNative/CppDll/.gitignore
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x64/**/*.*
157 changes: 157 additions & 0 deletions Examples/PythonCallingNative/CppDll/CppDll.vcxproj
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33 changes: 33 additions & 0 deletions Examples/PythonCallingNative/CppDll/CppDll.vcxproj.filters
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25 changes: 25 additions & 0 deletions Examples/PythonCallingNative/CppDll/dllmain.cpp
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// dllmain.cpp : Defines the entry point for the DLL application.
#include "pch.h"

BOOL APIENTRY DllMain( HMODULE hModule,
DWORD ul_reason_for_call,
LPVOID lpReserved
)
{
switch (ul_reason_for_call)
{
case DLL_PROCESS_ATTACH:
case DLL_THREAD_ATTACH:
case DLL_THREAD_DETACH:
case DLL_PROCESS_DETACH:
break;
}
return TRUE;
}

// mylib.cpp
extern "C" __declspec(dllexport) int add(int a, int b) {
return a + b;
}


5 changes: 5 additions & 0 deletions Examples/PythonCallingNative/CppDll/framework.h
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#pragma once

#define WIN32_LEAN_AND_MEAN // Exclude rarely-used stuff from Windows headers
// Windows Header Files
#include <windows.h>
5 changes: 5 additions & 0 deletions Examples/PythonCallingNative/CppDll/pch.cpp
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// pch.cpp: source file corresponding to the pre-compiled header

#include "pch.h"

// When you are using pre-compiled headers, this source file is necessary for compilation to succeed.
13 changes: 13 additions & 0 deletions Examples/PythonCallingNative/CppDll/pch.h
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// pch.h: This is a precompiled header file.
// Files listed below are compiled only once, improving build performance for future builds.
// This also affects IntelliSense performance, including code completion and many code browsing features.
// However, files listed here are ALL re-compiled if any one of them is updated between builds.
// Do not add files here that you will be updating frequently as this negates the performance advantage.

#ifndef PCH_H
#define PCH_H

// add headers that you want to pre-compile here
#include "framework.h"

#endif //PCH_H
10 changes: 10 additions & 0 deletions Examples/PythonCallingNative/PythonApplication/PythonApplication.py
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import ctypes

# Load the DLL
mylib = ctypes.CDLL('..\\x64\\Debug\\CppDll.dll')

# Call the add function from the DLL result
result = mylib.add(5, 10)

print(f"Result from C++ DLL: {result}")
42 changes: 42 additions & 0 deletions Examples/PythonCallingNative/PythonApplication/PythonApplication.pyproj
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45 changes: 45 additions & 0 deletions Examples/PythonCallingNative/PythonCallingNative.sln
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