From 0464a50ab8f5f6c7028da80cb0d579cdfc84717a Mon Sep 17 00:00:00 2001
From: sean <43609023+spnda@users.noreply.github.com>
Date: Tue, 9 Mar 2021 10:22:52 +0100
Subject: Add: Display refresh rate game option (#8813)

---
 src/video/win32_v.cpp | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

(limited to 'src/video/win32_v.cpp')

diff --git a/src/video/win32_v.cpp b/src/video/win32_v.cpp
index 8030380ce..a802cdafa 100644
--- a/src/video/win32_v.cpp
+++ b/src/video/win32_v.cpp
@@ -916,6 +916,27 @@ void VideoDriver_Win32Base::EditBoxLostFocus()
 	SetCandidatePos(this->main_wnd);
 }
 
+std::vector<int> VideoDriver_Win32Base::GetListOfMonitorRefreshRates()
+{
+	std::vector<int> rates = {};
+	EnumDisplayMonitors(nullptr, nullptr, [](HMONITOR hMonitor, HDC hDC, LPRECT rc, LPARAM data) -> BOOL {
+		auto &list = *reinterpret_cast<std::vector<int>*>(data);
+
+		MONITORINFOEX monitorInfo = {};
+		monitorInfo.cbSize = sizeof(MONITORINFOEX);
+		GetMonitorInfo(hMonitor, &monitorInfo);
+
+		DEVMODE devMode = {};
+		devMode.dmSize = sizeof(DEVMODE);
+		devMode.dmDriverExtra = 0;
+		EnumDisplaySettings(monitorInfo.szDevice, ENUM_CURRENT_SETTINGS, &devMode);
+
+		if (devMode.dmDisplayFrequency != 0) list.push_back(devMode.dmDisplayFrequency);
+		return true;
+	}, reinterpret_cast<LPARAM>(&rates));
+	return rates;
+}
+
 Dimension VideoDriver_Win32Base::GetScreenSize() const
 {
 	return { static_cast<uint>(GetSystemMetrics(SM_CXSCREEN)), static_cast<uint>(GetSystemMetrics(SM_CYSCREEN)) };
-- 
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