Set timer resolution to lowest possible value in all Windows systems

2022-04-28 17:34:54 +03:00
parent 3c841b1be1
commit 6e2b854544
1 changed files with 10 additions and 3 deletions
@@ -626,10 +626,17 @@ bool WindowsPlatform::Init()
        return true;
    }

-    // Set lowest possible timer resolution for previous Windows versions
-    if (VersionMajor < 10 || (VersionMajor == 10 && VersionBuild < 17134))
+    // Set the lowest possible timer resolution
+    const HMODULE ntdll = LoadLibraryW(L"ntdll.dll");
+    if (ntdll)
    {
-        timeBeginPeriod(1);
+        typedef LONG (WIN_API_CALLCONV *NtSetTimerResolution)(ULONG DesiredResolution, unsigned char SetResolution, ULONG* CurrentResolution);
+        const NtSetTimerResolution ntSetTimerResolution = (NtSetTimerResolution)GetProcAddress(ntdll, "NtSetTimerResolution");
+
+        ULONG currentResolution;
+        ntSetTimerResolution(1, TRUE, &currentResolution);
+
+        ::FreeLibrary(ntdll);
    }

    DWORD tmp;