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-rw-r--r--src/Registry.hs (renamed from src/RegUtils.hs)42
1 files changed, 24 insertions, 18 deletions
diff --git a/src/RegUtils.hs b/src/Registry.hs
index eccb6ad..d6c3f26 100644
--- a/src/RegUtils.hs
+++ b/src/Registry.hs
@@ -4,11 +4,12 @@
- See LICENSE.txt for details.
-}
-module RegUtils ( delValue
+module Registry ( delValue
, getString
, hkcu
, hklm
- , setString ) where
+ , setString
+ , KeyHandle ) where
import Control.Exception ( bracket )
import Data.Maybe ( fromMaybe )
@@ -21,10 +22,12 @@ import System.IO.Error ( mkIOError, doesNotExistErrorType )
import System.Win32.Types
import System.Win32.Registry
+newtype KeyHandle = KeyHandle HKEY
+
getType :: HKEY -> String -> String -> IO (Maybe RegValueType)
getType key subKeyPath valueName =
- bracket (regOpenKey key subKeyPath) regCloseKey $ \key ->
- withForeignPtr key $ \p_key ->
+ bracket (regOpenKey key subKeyPath) regCloseKey $ \hKey ->
+ withForeignPtr hKey $ \p_key ->
withTString valueName $ \p_valueName ->
alloca $ \p_type -> do
ret <- c_RegQueryValueEx p_key p_valueName nullPtr p_type nullPtr nullPtr
@@ -35,10 +38,10 @@ getType key subKeyPath valueName =
0x2 -> return Nothing
_ -> failWith "RegQueryValueEx" ret
-getString :: HKEY -> String -> String -> IO String
-getString key subKeyPath valueName =
- bracket (regOpenKey key subKeyPath) regCloseKey $ \key ->
- withForeignPtr key $ \p_key ->
+getString :: KeyHandle -> String -> String -> IO String
+getString (KeyHandle hKey) subKeyPath valueName =
+ bracket (regOpenKey hKey subKeyPath) regCloseKey $ \hSubKey ->
+ withForeignPtr hSubKey $ \p_key ->
withTString valueName $ \p_valueName ->
alloca $ \dataSizePtr -> do
poke dataSizePtr 0
@@ -56,11 +59,11 @@ getString key subKeyPath valueName =
0x2 -> ioError $ mkIOError doesNotExistErrorType "RegQueryValueEx" Nothing $ Just (subKeyPath ++ "\\" ++ valueName)
_ -> failWith "RegQueryValueEx" ret
-setString :: HKEY -> String -> String -> String -> IO ()
-setString key subKeyPath valueName valueValue =
- bracket (regOpenKey key subKeyPath) regCloseKey $ \subKey ->
+setString :: KeyHandle -> String -> String -> String -> IO ()
+setString (KeyHandle hKey) subKeyPath valueName valueValue =
+ bracket (regOpenKey hKey subKeyPath) regCloseKey $ \subKey ->
withTString valueValue $ \p_valueValue -> do
- type_ <- getType key subKeyPath valueName
+ type_ <- getType hKey subKeyPath valueName
regSetValueEx subKey valueName (fromMaybe rEG_SZ type_) p_valueValue $ (length valueValue + 1) * sizeOf (undefined :: TCHAR)
notifyEnvironmentUpdate
@@ -70,14 +73,14 @@ notifyEnvironmentUpdate =
let wparam = 0
let lparam = fromIntegral $ castPtrToUINTPtr p_lparam
let hwnd = castUINTPtrToPtr 0xffff
- sendMessage hwnd wM_SETTINGCHANGE wparam lparam
+ _ <- sendMessage hwnd wM_SETTINGCHANGE wparam lparam
return ()
where
wM_SETTINGCHANGE = 0x1A
-delValue :: HKEY -> String -> String -> IO ()
-delValue key subKeyPath valueName =
- bracket (regOpenKey key subKeyPath) regCloseKey $ \subKey ->
+delValue :: KeyHandle -> String -> String -> IO ()
+delValue (KeyHandle hKey) subKeyPath valueName =
+ bracket (regOpenKey hKey subKeyPath) regCloseKey $ \subKey ->
withForeignPtr subKey $ \subKeyPtr ->
withTString valueName $ \p_valueName -> do
ret <- c_RegDeleteValue subKeyPtr p_valueName
@@ -87,5 +90,8 @@ delValue key subKeyPath valueName =
0x2 -> ioError $ mkIOError doesNotExistErrorType "RegQueryValueEx" Nothing $ Just (subKeyPath ++ "\\" ++ valueName)
_ -> failWith "RegDeleteValue" ret
-hkcu = hKEY_CURRENT_USER
-hklm = hKEY_LOCAL_MACHINE
+hkcu :: KeyHandle
+hkcu = KeyHandle hKEY_CURRENT_USER
+
+hklm :: KeyHandle
+hklm = KeyHandle hKEY_LOCAL_MACHINE