[reactos] 01/01: [NTUSER] Implement NtUserSetThreadLayoutHandles (#4277)

[Katayama Hirofumi MZ]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=ea1353e4beb2e820bf1c7…

commit ea1353e4beb2e820bf1c76de2a12d64739376df9
Author:     Katayama Hirofumi MZ <katayama.hirofumi.mz(a)gmail.com>
AuthorDate: Wed Jan 12 14:48:20 2022 +0900
Commit:     GitHub <noreply(a)github.com>
CommitDate: Wed Jan 12 14:48:20 2022 +0900

    [NTUSER] Implement NtUserSetThreadLayoutHandles (#4277)
    
    - Modify NtUserSetThreadLayoutHandles prototype.
    - Implement NtUserSetThreadLayoutHandles function.
    CORE-11700
---
 win32ss/include/ntuser.h      |  2 +-
 win32ss/user/ntuser/ntstubs.c | 25 ++++++++++++++++++++++---
 2 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/win32ss/include/ntuser.h b/win32ss/include/ntuser.h
index e6db897fa4b..3770d2761b9 100644
--- a/win32ss/include/ntuser.h
+++ b/win32ss/include/ntuser.h
@@ -3313,7 +3313,7 @@ NtUserSetSystemTimer(
     UINT uElapse,
     TIMERPROC lpTimerFunc);
 
-DWORD
+VOID
 NTAPI
 NtUserSetThreadLayoutHandles(HKL hNewKL, HKL hOldKL);
 
diff --git a/win32ss/user/ntuser/ntstubs.c b/win32ss/user/ntuser/ntstubs.c
index 09b9473756a..000fd2bdf5d 100644
--- a/win32ss/user/ntuser/ntstubs.c
+++ b/win32ss/user/ntuser/ntstubs.c
@@ -1023,12 +1023,31 @@ Quit:
     return Status;
 }
 
-DWORD
+VOID
 APIENTRY
 NtUserSetThreadLayoutHandles(HKL hNewKL, HKL hOldKL)
 {
-    STUB;
-    return 0;
+    PTHREADINFO pti;
+    PKL pOldKL, pNewKL;
+
+    UserEnterExclusive();
+
+    pti = GetW32ThreadInfo();
+    pOldKL = pti->KeyboardLayout;
+    if (pOldKL && pOldKL->hkl != hOldKL)
+        goto Quit;
+
+    pNewKL = UserHklToKbl(hNewKL);
+    if (!pNewKL)
+        goto Quit;
+
+    if (IS_IME_HKL(hNewKL) != IS_IME_HKL(hOldKL))
+        pti->hklPrev = hOldKL;
+
+    pti->KeyboardLayout = pNewKL;
+
+Quit:
+    UserLeave();
 }
 
 BOOL