[reactos] 01/01: [IMM32] Get gHighestUserAddress in ImmInitializeGlobals

[Katayama Hirofumi MZ]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=3d298831db03c30682ac10...

commit 3d298831db03c30682ac10d449655b68751362f9
Author:     Katayama Hirofumi MZ [e-mail]
AuthorDate: Sun Nov 13 20:04:34 2022 +0900
Commit:     Katayama Hirofumi MZ [e-mail]
CommitDate: Sun Nov 13 20:04:34 2022 +0900

[IMM32] Get gHighestUserAddress in ImmInitializeGlobals

CORE-11700
---
 dll/win32/imm32/imm.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/dll/win32/imm32/imm.c b/dll/win32/imm32/imm.c
index 14193efb5cb..40f686e44f0 100644
--- a/dll/win32/imm32/imm.c
+++ b/dll/win32/imm32/imm.c
@@ -10,6 +10,7 @@
  */

#include "precomp.h"
+#include <ndk/exfuncs.h>

WINE_DEFAULT_DEBUG_CHANNEL(imm);

@@ -17,11 +18,13 @@ HMODULE ghImm32Inst = NULL; // Win: ghInst
 PSERVERINFO gpsi = NULL; // Win: gpsi
 SHAREDINFO gSharedInfo = { NULL }; // Win: gSharedInfo
 BYTE gfImmInitialized = FALSE; // Win: gfInitialized
+ULONG_PTR gHighestUserAddress = 0;

// Win: ImmInitializeGlobals
 static BOOL APIENTRY ImmInitializeGlobals(HMODULE hMod)
 {
     NTSTATUS status;
+    SYSTEM_BASIC_INFORMATION SysInfo;

if (hMod)
         ghImm32Inst = hMod;
@@ -36,6 +39,14 @@ static BOOL APIENTRY ImmInitializeGlobals(HMODULE hMod)
         return FALSE;
     }

+    status = NtQuerySystemInformation(SystemBasicInformation, &SysInfo, sizeof(SysInfo), NULL);
+    if (NT_ERROR(status))
+    {
+        ERR("\n");
+        return FALSE;
+    }
+    gHighestUserAddress = SysInfo.MaximumUserModeAddress;
+
     gfImmInitialized = TRUE;
     return TRUE;
 }