// ntddsysenv.h

typedef struct _SYSENV_VARIABLE_INFO {
  ULONGLONG MaximumVariableStorageSize;
  ULONGLONG RemainingVariableStorageSize;
  ULONGLONG MaximumVariableSize;
} SYSENV_VARIABLE_INFO, *PSYSENV_VARIABLE_INFO;
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Windows Driver Kit DDI reference (ns-ntddsysenv-_sysenv_variable_info)

_SYSENV_VARIABLE_INFO structure

Description

Stores the information about a system environment variable using SysEnv device. This structure is used in the IOCTL_SYSENV_QUERY_VARIABLE_INFO request.

Members

`MaximumVariableStorageSize`

The size of the variable.

`RemainingVariableStorageSize`

The remaining size of the variable.

`MaximumVariableSize`

The maximum size of the variable.

SYSENV_VARIABLE_INFO - NtDoc