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# - try to find Windows HID support, part of the WDK/DDK
#
# Cache Variables: (probably not for direct use in your scripts)
# WINHID_INCLUDE_DIR
# WINHID_CRT_INCLUDE_DIR
# WINHID_LIBRARY
#
# Non-cache variables you might use in your CMakeLists.txt:
# WINHID_FOUND
# WINHID_INCLUDE_DIRS
# WINHID_LIBRARIES
#
# Requires these CMake modules:
# FindPackageHandleStandardArgs (known included with CMake >=2.6.2)
# PrefixListGlob
# CleanDirectoryList
#
# Original Author:
# 2009-2010 Ryan Pavlik <rpavlik@iastate.edu> <abiryan@ryand.net>
# http://academic.cleardefinition.com
# Iowa State University HCI Graduate Program/VRAC
#
# Copyright Iowa State University 2009-2010.
# Distributed under the Boost Software License, Version 1.0.
# (See accompanying file LICENSE_1_0.txt or copy at
# http://www.boost.org/LICENSE_1_0.txt)

if(NOT WIN32)
find_package_handle_standard_args(WinHID
"Skipping search for Windows HID on non-Windows platform"
WIN32)
return()
endif()
if(MSVC)
if( (NOT WINHID_ROOT_DIR) AND (NOT ENV{DDKROOT} STREQUAL "") )
set(WINHID_ROOT_DIR "$ENV{DDKROOT}")
endif()
endif()
set(WINHID_ROOT_DIR
"${WINHID_ROOT_DIR}"
CACHE
PATH
"Directory to search")

if(CMAKE_SIZEOF_VOID_P MATCHES "8")
set(_arch amd64)
else()
set(_arch i386)
endif()

if(MSVC)
include(PrefixListGlob)
include(CleanDirectoryList)
prefix_list_glob(_prefixed
"*/"
"$ENV{SYSTEMDRIVE}/WinDDK/"
"c:/WinDDK/")
clean_directory_list(_prefixed)
find_library(WINHID_LIBRARY
NAMES
hid
libhid
HINTS
"${WINHID_ROOT_DIR}"
${_prefixed}
PATH_SUFFIXES
"lib/w2k/${_arch}" # Win2k min requirement
"lib/wxp/${_arch}" # WinXP min requirement
"lib/wnet/${_arch}" # Win Server 2003 min requirement
"lib/wlh/${_arch}" # Win Vista ("Long Horn") min requirement
"lib/win7/${_arch}" # Win 7 min requirement
)
# Might want to look close to the library first for the includes.
get_filename_component(_libdir "${WINHID_LIBRARY}" PATH)
get_filename_component(_basedir "${_libdir}/../../.." ABSOLUTE)

find_path(WINHID_CRT_INCLUDE_DIR # otherwise you get weird compile errors
NAMES
stdio.h
HINTS
"${_basedir}"
PATHS
"${WINHID_ROOT_DIR}"
PATH_SUFFIXES
inc/crt
NO_DEFAULT_PATH)
find_path(WINHID_INCLUDE_DIR
NAMES
hidsdi.h
HINTS
"${_basedir}"
PATHS
"${WINHID_ROOT_DIR}"
PATH_SUFFIXES
inc/ddk
inc/api
inc/w2k
inc/wxp
inc/wnet)
else()
find_library(WINHID_LIBRARY
NAMES
libhid
HINTS
"${WINHID_ROOT_DIR}"
/mingw
PATH_SUFFIXES
lib
lib/w32api)
find_path(WINHID_INCLUDE_DIR
NAMES
hidsdi.h
PATHS
"${WINHID_ROOT_DIR}"
/mingw
PATH_SUFFIXES
include/w32api/ddk
include/ddk
ddk)
endif()

include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(WinHID
DEFAULT_MSG
WINHID_LIBRARY
WINHID_INCLUDE_DIR)

if(WINHID_FOUND)
if(MSVC)
set(_winreq "Unknown")
if(WINHID_LIBRARY MATCHES "lib/w2k")
set(_winreq "Windows 2000")
elseif(WINHID_LIBRARY MATCHES "lib/wxp")
set(_winreq "Windows XP")
elseif(WINHID_LIBRARY MATCHES "lib/wnet")
set(_winreq "Windows Server 2003")
elseif(WINHID_LIBRARY MATCHES "lib/wlh")
set(_winreq "Windows Vista")
elseif(WINHID_LIBRARY MATCHES "lib/win7")
set(_winreq "Windows 7")
endif()
if(NOT "${WINHID_MIN_WINDOWS_VER}" STREQUAL "${_winreq}")
if(NOT WinHID_FIND_QUIETLY)
message(STATUS
"Linking against WINHID_LIBRARY will enforce this minimum version: ${_winreq}")
endif()
set(WINHID_MIN_WINDOWS_VER "${_winreq}" CACHE INTERNAL "" FORCE)
endif()
endif()
set(WINHID_LIBRARIES "${WINHID_LIBRARY}")
set(WINHID_INCLUDE_DIRS
"${WINHID_CRT_INCLUDE_DIR}"
"${WINHID_INCLUDE_DIR}")
mark_as_advanced(WINHID_ROOT_DIR)
endif()

mark_as_advanced(WINHID_INCLUDE_DIR
WINHID_CRT_INCLUDE_DIR
WINHID_LIBRARY)
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