NAME¶

RegQueryInfoKeyW (ADVAPI32.@)

SYNOPSIS¶

LSTATUS RegQueryInfoKeyW
(
HKEY hkey,
LPWSTR class,
LPDWORD class_len,
LPDWORD reserved,
LPDWORD subkeys,
LPDWORD max_subkey,
LPDWORD max_class,
LPDWORD values,
LPDWORD max_value,
LPDWORD max_data,
LPDWORD security,
FILETIME* modif
)

DESCRIPTION¶

Retrieves information about the specified registry key.

PARAMS¶

hkey [In] Handle to key to query. class [Out] Buffer for class string. class_len [Out] Size of class string buffer. reserved [In] Reserved. subkeys [Out] Buffer for number of subkeys. max_subkey [Out] Buffer for longest subkey name length. max_class [Out] Buffer for longest class string length. values [Out] Buffer for number of value entries. max_value [Out] Buffer for longest value name length. max_data [Out] Buffer for longest value data length. security [Out] Buffer for security descriptor length. modif [Out] Modification time.

RETURNS¶

Success: ERROR_SUCCESS Failure: system error code.

NOTES¶

- win95 allows class to be valid and class_len to be NULL - winnt returns ERROR_INVALID_PARAMETER if class is valid and class_len is NULL - both allow class to be NULL and class_len to be NULL (it's hard to test validity, so test !NULL instead)

IMPLEMENTATION¶

Declared in "winreg.h". Implemented in "dlls/advapi32/registry.c". Debug channel "reg".