我的机器是Windows 8机器。我想从我的自定义驱动程序中读取HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{36fc9e60-c465-11cf-8056-444553540000}
中的“UpperFilters”键,以通过USB设备获得过滤器驱动程序。
答案 0 :(得分:3)
自XP时代以来,我还没有编写过驱动程序,但假设您正在讨论内核模式驱动程序,我相信您需要ZwOpenKey
,ZwQueryValueKey
和ZwClose
。一般指导here。
答案 1 :(得分:-1)
here是在c
中读取注册表的代码示例这是一个示例:
DWORD BufferSize = TOTALBYTES;
DWORD cbData;
DWORD dwRet;
PPERF_DATA_BLOCK PerfData = (PPERF_DATA_BLOCK) malloc( BufferSize );
cbData = BufferSize;
printf("\nRetrieving the data...");
dwRet = RegQueryValueEx( HKEY_PERFORMANCE_DATA,
TEXT("Global"),
NULL,
NULL,
(LPBYTE) PerfData,
&cbData );
while( dwRet == ERROR_MORE_DATA )
{
// Get a buffer that is big enough.
BufferSize += BYTEINCREMENT;
PerfData = (PPERF_DATA_BLOCK) realloc( PerfData, BufferSize );
cbData = BufferSize;
printf(".");
dwRet = RegQueryValueEx( HKEY_PERFORMANCE_DATA,
TEXT("Global"),
NULL,
NULL,
(LPBYTE) PerfData,
&cbData );
}
if( dwRet == ERROR_SUCCESS )
printf("\n\nFinal buffer size is %d\n", BufferSize);
else printf("\nRegQueryValueEx failed (%d)\n", dwRet);
或在一个简单的例子中
RegGetValue(HKEY_LOCAL_MACHINE, "SYSTEM\\CurrentControlSet\\Control\\Class", "{36fc9e60-c465-11cf-8056-444553540000}", RRF_RT_ANY, NULL, (PVOID)&value, &BufferSize);