RegQueryValueExA(3w)

NAME

RegQueryValueExA (ADVAPI32.@)

SYNOPSIS

LSTATUS RegQueryValueExA
 (
  HKEY    hkey,
  LPCSTR  name,
  LPDWORD reserved,
  LPDWORD type,
  LPBYTE  data,
  LPDWORD count
 )

DESCRIPTION

Get the type and contents of a specified value under with a key.

PARAMS

hkey [In] Handle of the key to query.

name [In] Name of value under hkey to query.

reserved [In] Reserved - must be NULL.

type [Out] Destination for the value type, or NULL if not required.

data [Out] Destination for the values contents, or NULL if not required.

count [In/Out] Size of data, updated with the number of bytes returned.

RETURNS

Success: ERROR_SUCCESS. *count is updated with the number of bytes copied to data.

Failure: ERROR_INVALID_HANDLE, if hkey is invalid. ERROR_INVALID_PARAMETER, if any other parameter is invalid. ERROR_MORE_DATA, if on input *count is too small to hold the contents.

NOTES

MSDN states that if data is too small it is partially filled. In reality it remains untouched.

IMPLEMENTATION

Defined in "winreg.h".

Implemented in "build/buildd-wine-unstable_1.1.32-1+b1-amd64-KnxYu0/wine-unstable-1.1.32/build32/dlls/advapi32/registry.c".

Debug channel "reg".

Wine API Aug 2010 RegQueryValueExA(3w)