ctypes 官方文档:[Python 3.5]:ctypes- Python的外部函数库。
创建了一个虚拟 .dll 来模仿您的行为。
dll.c :
#include <stdio.h>
#include <Windows.h>
__declspec(dllexport) BOOL InitNetwork(char LocalIP[], char ServerIP[], int Localdeviceid) {
printf("From C:\n\tLocalIP: [%s]\n\tServerIP: [%s]\n\tLocaldeviceid: %d\n", LocalIP, ServerIP, Localdeviceid);
return TRUE;
}
检查SO:如何编译用C编写的64位dll?(@CristiFati的答案)以获取有关如何构建它的详细信息(采取了完全相同的步骤,在这种情况下,命令是:)cl /nologo /LD /DWIN64 /DWIN32 /Tp dll.c /link /OUT:NetServerInterface.dll
。
(主要)问题在于,在 python3中 ,char*
不再映射到 string ,而是映射到 bytes 对象。
code.py :
import sys
import ctypes
from ctypes import wintypes
FILE_NAME = "NetServerInterface.dll"
FUNC_NAME = "?InitNetwork@@YAHQEAD0H@Z" # Name different than yours: if func was declared as `extern "C"`, the "normal" name would be required
def main():
net_server_interface_dll = ctypes.CDLL(FILE_NAME)
init_network = getattr(net_server_interface_dll, FUNC_NAME)
init_network.argtypes = [ctypes.c_char_p, ctypes.c_char_p, ctypes.c_int]
init_network.restype = wintypes.BOOL
init_network(b"192.168.1.103", b"192.168.1.103", 1111)
if __name__ == "__main__":
print("Python {:s} on {:s}\n".format(sys.version, sys.platform))
main()
:
(py35x64_test)
e:\Work\Dev\StackOverflow\q050325050>”e:\Work\Dev\VEnvs\py35x64_test\Scripts\python.exe” code.py Python 3.5.4 (v3.5.4:3f56838, Aug 8 2017, 02:17:05) [MSC v.1900 64 bit (AMD64)] on win32
From C:
LocalIP: [192.168.1.103]
ServerIP: [192.168.1.103]
Localdeviceid: 1111