我有以下的最低限度功能的DLL蟒蛇非託管的DLL調用失敗,在Win32 API FindWindow函數與訪問衝突
#define INTELHOOK_API extern "C" __declspec(dllexport)
INTELHOOK_API BOOL testFunc(void) {
BOOL success = false;
HWND parent = NULL;
parent = FindWindow("Arium.SourcePont", NULL);
if (parent != NULL) {
success = true;
}
return success;
}
如果我把這個從DLL的主要功能,它工作正常。如果我把它從蟒蛇,我得到以下幾點:
WindowsError: exception: access violation reading 0x00439508
我的python腳本是這樣的:
from ctypes import *
dll = cdll.hook
print dll.testFunc()
我Win7上運行64位,但DLL和蟒蛇都是32位:
c:\Projects\hg\hooklib>dumpbin /headers hook.dll
Microsoft (R) COFF/PE Dumper Version 9.00.21022.08
Copyright (C) Microsoft Corporation. All rights reserved.
Dump of file hook.dll
PE signature found
File Type: EXECUTABLE IMAGE
FILE HEADER VALUES
14C machine (x86)
'
打印內容sys.version 2.7.2(默認情況下,2011年6月12日,15點08分59秒)[MSC v.1500 32位(英特爾)]
我附加調試程序但似乎無法解決它。
'python.exe': Loaded 'C:\Python27\python.exe'
'python.exe': Loaded 'C:\Windows\SysWOW64\ntdll.dll', Symbols loaded (source information stripped).
'python.exe': Loaded 'C:\Windows\SysWOW64\kernel32.dll', Symbols loaded (source information stripped).
'python.exe': Loaded 'C:\Windows\SysWOW64\KernelBase.dll', Symbols loaded (source information stripped).
'python.exe': Loaded 'C:\Windows\SysWOW64\python27.dll'
'python.exe': Loaded 'C:\Windows\SysWOW64\user32.dll', Symbols loaded (source information stripped).
'python.exe': Loaded 'C:\Windows\SysWOW64\gdi32.dll', Symbols loaded (source information stripped).
'python.exe': Loaded 'C:\Windows\SysWOW64\lpk.dll', Symbols loaded (source information stripped).
'python.exe': Loaded 'C:\Windows\SysWOW64\usp10.dll', Symbols loaded (source information stripped).
'python.exe': Loaded 'C:\Windows\SysWOW64\msvcrt.dll', Symbols loaded (source information stripped).
'python.exe': Loaded 'C:\Windows\SysWOW64\advapi32.dll', Symbols loaded (source information stripped).
'python.exe': Loaded 'C:\Windows\SysWOW64\sechost.dll', Symbols loaded (source information stripped).
'python.exe': Loaded 'C:\Windows\SysWOW64\rpcrt4.dll', Symbols loaded (source information stripped).
'python.exe': Loaded 'C:\Windows\SysWOW64\sspicli.dll', Symbols loaded (source information stripped).
'python.exe': Loaded 'C:\Windows\SysWOW64\cryptbase.dll', Symbols loaded (source information stripped).
'python.exe': Loaded 'C:\Windows\SysWOW64\shell32.dll', Symbols loaded (source information stripped).
'python.exe': Loaded 'C:\Windows\SysWOW64\shlwapi.dll', Symbols loaded (source information stripped).
'python.exe': Loaded 'C:\Windows\winsxs\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.6161_none_50934f2ebcb7eb57\msvcr90.dll', Symbols loaded (source information stripped).
'python.exe': Loaded 'C:\Windows\SysWOW64\imm32.dll', Symbols loaded (source information stripped).
'python.exe': Loaded 'C:\Windows\SysWOW64\msctf.dll', Symbols loaded (source information stripped).
'python.exe': Loaded 'C:\Windows\SysWOW64\PGPmapih.dll'
'python.exe': Loaded 'C:\Python27\DLLs\_ctypes.pyd'
'python.exe': Loaded 'C:\Windows\SysWOW64\ole32.dll', Symbols loaded (source information stripped).
'python.exe': Loaded 'C:\Windows\SysWOW64\oleaut32.dll', Symbols loaded (source information stripped).
'python.exe': Loaded 'C:\Projects\hg\hooklib\hook.dll', Symbols loaded.
The thread 'Win32 Thread' (0x10b0) has exited with code 0 (0x0).
First-chance exception at 0x01d428ae (hook.dll) in python.exe: 0xC0000005: Access violation reading location 0x00439508.
The program '[3836] python.exe: Native' has exited with code 1 (0x1).
當我通過JNA訪問Java函數時會發生同樣的情況。 鑑於該功能在dll中從主調用時起作用,使我相信這是一些訪問限制,但這沒有意義。我不能成爲dll的第一個間接調用win32函數...
先謝謝你花時間閱讀所有這些!
乾杯