IOCTL_CHANGER_SET_ACCESS IOCTL (winioctl.h)

设置设备的插入/弹出端口、门或键盘的状态。

若要执行此操作，请使用以下参数调用 DeviceIoControl 函数。

BOOL DeviceIoControl(
  (HANDLE) hDevice,             // handle to device
  IOCTL_CHANGER_SET_ACCESS,     // dwIoControlCode
  (LPVOID) lpInBuffer,          // input buffer
  (DWORD) nInBufferSize,        // size of input buffer
  NULL,                         // lpOutBuffer
  0,                            // nOutBufferSize
  (LPDWORD) lpBytesReturned,    // number of bytes returned
  (LPOVERLAPPED) lpOverlapped   // OVERLAPPED structure
);

要求

另请参阅

• CHANGER_SET_ACCESS
• 设备管理控制代码
• DeviceIoControl