我在哪里可以得到pkfuncs.h(并访问KernelIoControl)

Where can I get pkfuncs.h (and access to KernelIoControl)?

本文关键字：访问 KernelIoControl pkfuncs 在哪里      更新时间：2023-10-16

我试图调用KernelIoControl，但在任何地方都找不到头文件pkfuncs.h。

我想知道是否:a)是否有我需要的秘密下载?b)或者它不存在，因为我使用的设备的SDK(卡西欧)不包括这些库?

也……大概是WINAPI吧?我想我还是动态链接到它吧

调用KernelIoControl不需要头文件。把它添加到你自己的应用中:

extern "C" BOOL KernelIoControl(
  DWORD dwIoControlCode,
  LPVOID lpInBuf,
  DWORD nInBufSize,
  LPVOID lpOutBuf,
  DWORD nOutBufSize,
  LPDWORD lpBytesReturned
);

链接器会帮你找到的

在我的搜索中，我还发现这个页面非常有用，可以获得IOCTRL_HAL_GET_DEVICEID:

它还详细说明了DEVICE_ID结构，这是使用调用所必需的:

#define IOCTL_HAL_GET_DEVICEID CTL_CODE(FILE_DEVICE_HAL, 21, METHOD_BUFFERED, FILE_ANY_ACCESS) 
typedef struct _DEVICE_ID { 
    DWORD dwSize; 
    DWORD dwPresetIDOffset; 
    DWORD dwPresetIDBytes; 
    DWORD dwPlatformIDOffset; 
    DWORD dwPlatformIDBytes; 
} DEVICE_ID, *PDEVICE_ID;

不太明显的是，给定偏移量中包含的数据只是int值，最好将其视为十六进制代码。

下面是我用来获取唯一设备ID的代码:

PDWORD      pdwTmp;
DWORD       dwUIDLen;
DWORD       dwLen;
DWORD       dwIdx;
BYTE        abData[512];
BYTE        abID[64];
PDEVICE_ID  pDvcID;
dwLen = 0;
memset(abID, 0, sizeof(abID));
memset(abData, 0, sizeof(abData));
pDvcID = (PDEVICE_ID) abData;
pDvcID->dwSize = sizeof(abData);
KernelIoControl(IOCTL_HAL_GET_DEVICEID, NULL, 0, abData, sizeof(abData), &dwLen);
// If valid data was returned build ID from both parts
if ( (dwLen >= (sizeof(*pDvcID) + 8))       // Enough bytes returned for struct and 8 ID bytes
    && (dwLen >= pDvcID->dwSize)            // Bytes returned is at least indicated struct size
    && pDvcID->dwPresetIDBytes && pDvcID->dwPlatformIDBytes     // Both ID's are present
    && (pDvcID->dwPresetIDOffset >= sizeof(*pDvcID))            // Preset ID offset is reasonable
    && (pDvcID->dwPlatformIDOffset >= sizeof(*pDvcID))          // Platform ID offset is reasonable
    && ((pDvcID->dwPresetIDOffset + pDvcID->dwPresetIDBytes)    // Preset ID is in bounds
        <= pDvcID->dwSize)
    && ((pDvcID->dwPlatformIDOffset + pDvcID->dwPlatformIDBytes)// Platform ID is in bounds
        <= pDvcID->dwSize) )
{
    // Copy as much of the Preset ID as will fit
    dwIdx = pDvcID->dwPresetIDBytes;
    if ( dwIdx > sizeof(abID) )
        dwIdx = sizeof(abID);
    if ( dwIdx )
        memcpy(abID, abData + pDvcID->dwPresetIDOffset, dwIdx);
    dwLen = dwIdx;
    // Copy as much of the Platform ID as will fit
    dwIdx = pDvcID->dwPlatformIDBytes;
    if ( dwIdx > (sizeof(abID) - dwLen) )
        dwIdx = (sizeof(abID) - dwLen);
    if ( dwIdx )
        memcpy(abID + dwLen, abData + pDvcID->dwPlatformIDOffset, dwLen);
    dwLen += dwIdx;
}
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