https://git.reactos.org/?p=reactos.git;a=commitdiff;h=dcf0788f595ba4eb73fa368a7be91999588d58b4

commit dcf0788f595ba4eb73fa368a7be91999588d58b4
Author:     Katayama Hirofumi MZ <katayama.hirofumi...@gmail.com>
AuthorDate: Tue Jul 30 11:45:23 2024 +0900
Commit:     GitHub <nore...@github.com>
CommitDate: Tue Jul 30 11:45:23 2024 +0900

    [IMM32][SDK][USER32] Fix ImmFreeLayout parameter (#7195)
    
    JIRA issue: CORE-19268
    - Define ImmFreeLayout parameter special
      values (HKL_SWITCH_TO_NON_IME and
      HKL_RELEASE_IME) at <imm32_undoc.h>.
    - Make ImmFreeLayout parameter an HKL.
---
 dll/win32/imm32/imm.c                  | 17 +++++++++--------
 dll/win32/imm32/imm32.spec             |  2 +-
 sdk/include/reactos/imm32_undoc.h      |  4 ++++
 win32ss/user/user32/include/immtable.h |  2 +-
 win32ss/user/user32/misc/imm.c         |  2 +-
 5 files changed, 16 insertions(+), 11 deletions(-)

diff --git a/dll/win32/imm32/imm.c b/dll/win32/imm32/imm.c
index edbc4bcdb4e..117cb52eaa9 100644
--- a/dll/win32/imm32/imm.c
+++ b/dll/win32/imm32/imm.c
@@ -111,20 +111,22 @@ BOOL WINAPI ImmLoadLayout(HKL hKL, PIMEINFOEX pImeInfoEx)
 
 /***********************************************************************
  *             ImmFreeLayout (IMM32.@)
+ *
+ * NOTE: HKL_SWITCH_TO_NON_IME and HKL_RELEASE_IME are special values for hKL.
  */
-BOOL WINAPI ImmFreeLayout(DWORD dwUnknown)
+BOOL WINAPI ImmFreeLayout(HKL hKL)
 {
     WCHAR szKBD[KL_NAMELENGTH];
     UINT iKL, cKLs;
-    HKL hOldKL, hNewKL, *pList;
+    HKL hOldKL, *pList;
     PIMEDPI pImeDpi;
     LANGID LangID;
 
-    TRACE("(0x%lX)\n", dwUnknown);
+    TRACE("(%p)\n", hKL);
 
     hOldKL = GetKeyboardLayout(0);
 
-    if (dwUnknown == 1)
+    if (hKL == HKL_SWITCH_TO_NON_IME)
     {
         if (!IS_IME_HKL(hOldKL))
             return TRUE;
@@ -158,7 +160,7 @@ BOOL WINAPI ImmFreeLayout(DWORD dwUnknown)
             LoadKeyboardLayoutW(L"00000409", KLF_ACTIVATE | 0x200);
         }
     }
-    else if (dwUnknown == 2)
+    else if (hKL == HKL_RELEASE_IME)
     {
         RtlEnterCriticalSection(&gcsImeDpi);
 Retry:
@@ -171,9 +173,8 @@ Retry:
     }
     else
     {
-        hNewKL = UlongToHandle(dwUnknown);
-        if (IS_IME_HKL(hNewKL) && hNewKL != hOldKL)
-            Imm32ReleaseIME(hNewKL);
+        if (IS_IME_HKL(hKL) && hKL != hOldKL)
+            Imm32ReleaseIME(hKL);
     }
 
     return TRUE;
diff --git a/dll/win32/imm32/imm32.spec b/dll/win32/imm32/imm32.spec
index 03ba666c074..83c435a7a5e 100644
--- a/dll/win32/imm32/imm32.spec
+++ b/dll/win32/imm32/imm32.spec
@@ -38,7 +38,7 @@
 @ stdcall ImmEnumRegisterWordW(long ptr wstr long wstr ptr)
 @ stdcall ImmEscapeA(long ptr long ptr)
 @ stdcall ImmEscapeW(long ptr long ptr)
-@ stdcall ImmFreeLayout(long)
+@ stdcall ImmFreeLayout(ptr)
 @ stdcall ImmGenerateMessage(ptr)
 @ stdcall ImmGetAppCompatFlags(ptr)
 @ stdcall ImmGetCandidateListA(long long ptr long)
diff --git a/sdk/include/reactos/imm32_undoc.h 
b/sdk/include/reactos/imm32_undoc.h
index 184f6e13eac..eea17b6841c 100644
--- a/sdk/include/reactos/imm32_undoc.h
+++ b/sdk/include/reactos/imm32_undoc.h
@@ -24,6 +24,10 @@ extern "C" {
 #define IS_IME_KLID(dwKLID)     ((((ULONG)(dwKLID)) & 0xF0000000) == IME_MASK)
 #define IS_SUBST_KLID(dwKLID)   ((((ULONG)(dwKLID)) & 0xF0000000) == 
SUBST_MASK)
 
+/* The special values for ImmFreeLayout hKL */
+#define HKL_SWITCH_TO_NON_IME   ((HKL)UlongToHandle(1))
+#define HKL_RELEASE_IME         ((HKL)UlongToHandle(2))
+
 typedef struct tagIMEINFOEX
 {
     HKL hkl;
diff --git a/win32ss/user/user32/include/immtable.h 
b/win32ss/user/user32/include/immtable.h
index ad178c8282d..8657d6c4706 100644
--- a/win32ss/user/user32/include/immtable.h
+++ b/win32ss/user/user32/include/immtable.h
@@ -30,7 +30,7 @@ DEFINE_IMM_ENTRY(/*PINPUTCONTEXT*/ LPVOID, ImmLockIMC, (HIMC 
hIMC), 0, NONVOID)
 DEFINE_IMM_ENTRY(BOOL, ImmUnlockIMC, (HIMC hIMC), 0, NONVOID)
 DEFINE_IMM_ENTRY(BOOL, ImmLoadIME, (HKL hKL), 0, NONVOID)
 DEFINE_IMM_ENTRY(BOOL, ImmSetOpenStatus, (HIMC hIMC, BOOL bOpen), 0, NONVOID)
-DEFINE_IMM_ENTRY(BOOL, ImmFreeLayout, (DWORD dwFlags), 0, NONVOID)
+DEFINE_IMM_ENTRY(BOOL, ImmFreeLayout, (HKL hKL), 0, NONVOID)
 DEFINE_IMM_ENTRY(BOOL, ImmActivateLayout, (HKL hKL), 0, NONVOID)
 DEFINE_IMM_ENTRY(BOOL, ImmGetCandidateWindow, (HIMC hIMC, DWORD dwIndex, 
LPCANDIDATEFORM lpCandForm), 0, NONVOID)
 DEFINE_IMM_ENTRY(BOOL, ImmSetCandidateWindow, (HIMC hIMC, LPCANDIDATEFORM 
lpCandForm), 0, NONVOID)
diff --git a/win32ss/user/user32/misc/imm.c b/win32ss/user/user32/misc/imm.c
index 640902bbabf..89d473632ec 100644
--- a/win32ss/user/user32/misc/imm.c
+++ b/win32ss/user/user32/misc/imm.c
@@ -717,7 +717,7 @@ static LRESULT ImeWnd_OnImeSystem(PIMEUI pimeui, WPARAM 
wParam, LPARAM lParam)
             break;
 
         case IMS_FREELAYOUT:
-            ret = IMM_FN(ImmFreeLayout)((DWORD)lParam);
+            ret = IMM_FN(ImmFreeLayout)((HKL)lParam);
             break;
 
         case 0x13:

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