Add: Display refresh rate game option (#8813)

1 files changed, 21 insertions, 0 deletions

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)) };