[reactos] 01/01: [IMM32] Improve ImmAssociateContext readability

[Katayama Hirofumi MZ]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=72c56c2f1fbd4581b9150…

commit 72c56c2f1fbd4581b91504c32115771d72f1e0e6
Author:     Katayama Hirofumi MZ <katayama.hirofumi.mz(a)gmail.com>
AuthorDate: Thu Oct 20 12:32:45 2022 +0900
Commit:     Katayama Hirofumi MZ <katayama.hirofumi.mz(a)gmail.com>
CommitDate: Thu Oct 20 12:32:45 2022 +0900

    [IMM32] Improve ImmAssociateContext readability
    
    CORE-11700
---
 dll/win32/imm32/imm.c   | 26 +++++++++++++++-----------
 dll/win32/imm32/utils.c |  2 ++
 2 files changed, 17 insertions(+), 11 deletions(-)

diff --git a/dll/win32/imm32/imm.c b/dll/win32/imm32/imm.c
index 8f7f14764d9..e8498d9163d 100644
--- a/dll/win32/imm32/imm.c
+++ b/dll/win32/imm32/imm.c
@@ -513,19 +513,23 @@ HIMC WINAPI ImmAssociateContext(HWND hWnd, HIMC hIMC)
         return hIMC;
 
     dwValue = NtUserAssociateInputContext(hWnd, hIMC, 0);
-    if (dwValue == 0)
-        return hOldIMC;
-    if (dwValue != 1)
-        return NULL;
-
-    hwndFocus = (HWND)NtUserQueryWindow(hWnd, QUERY_WINDOW_FOCUS);
-    if (hwndFocus == hWnd)
+    switch (dwValue)
     {
-        ImmSetActiveContext(hWnd, hOldIMC, FALSE);
-        ImmSetActiveContext(hWnd, hIMC, TRUE);
-    }
+        case 0:
+            return hOldIMC;
 
-    return hOldIMC;
+        case 1:
+            hwndFocus = (HWND)NtUserQueryWindow(hWnd, QUERY_WINDOW_FOCUS);
+            if (hwndFocus == hWnd)
+            {
+                ImmSetActiveContext(hWnd, hOldIMC, FALSE);
+                ImmSetActiveContext(hWnd, hIMC, TRUE);
+            }
+            return hOldIMC;
+
+        default:
+            return NULL;
+    }
 }
 
 /***********************************************************************
diff --git a/dll/win32/imm32/utils.c b/dll/win32/imm32/utils.c
index 3616f7ea39c..d2271fbabe0 100644
--- a/dll/win32/imm32/utils.c
+++ b/dll/win32/imm32/utils.c
@@ -207,6 +207,7 @@ LPSTR APIENTRY Imm32AnsiFromWide(LPCWSTR pszW)
 }
 
 /* Converts the character index */
+/* Win: CalcCharacterPositionAtoW */
 LONG APIENTRY IchWideFromAnsi(LONG cchAnsi, LPCSTR pchAnsi, UINT uCodePage)
 {
     LONG cchWide;
@@ -227,6 +228,7 @@ LONG APIENTRY IchWideFromAnsi(LONG cchAnsi, LPCSTR pchAnsi, UINT
uCodePage)
 }
 
 /* Converts the character index */
+/* Win: CalcCharacterPositionWtoA */
 LONG APIENTRY IchAnsiFromWide(LONG cchWide, LPCWSTR pchWide, UINT uCodePage)
 {
     LONG cb, cchAnsi;