Wine API: RegQueryInfoKeyW

NAME

RegQueryInfoKeyW (KERNELBASE.@)

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". https://source.winehq.org/source/include/winreg.h

Implemented in "dlls/kernelbase/registry.c". https://source.winehq.org/source/dlls/kernelbase/registry.c

Debug channel "reg".