Get / Set monitor's brightness value about nwinfo HOT 2 CLOSED

struct MATCH_DISPLAY_CTX
{
	LPCWSTR name;
	HMONITOR hm;
};

static BOOL MatchDisplayName(HMONITOR hMonitor, HDC hDC, LPRECT lpRect, LPARAM lParam)
{
	struct MATCH_DISPLAY_CTX* ctx = (struct MATCH_DISPLAY_CTX*)lParam;
	MONITORINFOEXW info = { .cbSize = sizeof(MONITORINFOEXW) };
	if (GetMonitorInfoW(hMonitor, (LPMONITORINFO)&info))
	{
		if (wcscmp(ctx->name, info.szDevice) == 0)
		{
			ctx->hm = hMonitor;
			return FALSE;
		}
	}
	return TRUE;
}

HMONITOR
NWL_GetMonitorHandleByHwID(LPCWSTR hwId)
{
	DWORD i, j;
	int len;
	WCHAR displayId[32];
	DISPLAY_DEVICEW displayDevice = { .cb = sizeof(DISPLAY_DEVICEW) };
	// MONITOR\XXXXXXX
	if (wcsncmp(hwId, L"MONITOR\\", 8) != 0)
		return NULL;
	len = swprintf(displayId, 32, L"\\\\?\\DISPLAY#%s#", &hwId[8]);
	if (len <= 0)
		return NULL;
	for (i = 0; EnumDisplayDevicesW(NULL, i, &displayDevice, EDD_GET_DEVICE_INTERFACE_NAME); i++)
	{
		DISPLAY_DEVICEW monitorDevice = { .cb = sizeof(DISPLAY_DEVICEW) };
		for (j = 0; EnumDisplayDevicesW(displayDevice.DeviceName, j, &monitorDevice, EDD_GET_DEVICE_INTERFACE_NAME); j++)
		{
			//MonitorDevice.DeviceID
			if (wcsncmp(monitorDevice.DeviceID, displayId, (size_t)len) == 0)
			{
				struct MATCH_DISPLAY_CTX ctx = { .name = displayDevice.DeviceName, .hm = NULL };
				EnumDisplayMonitors(NULL, NULL, MatchDisplayName, (LPARAM) &ctx);
				return ctx.hm;
			}
		}
	}
	return NULL;
}

void nwinfo_display(void)
{
	DWORD iDevNum = 0;
	DEVMODEA DevMode = { .dmSize = sizeof(DEVMODEA) };
	DISPLAY_DEVICEA DisplayDevice = { .cb = sizeof(DISPLAY_DEVICEA) };

	while (EnumDisplayDevicesA(NULL, iDevNum, &DisplayDevice, EDD_GET_DEVICE_INTERFACE_NAME))
	{
		DWORD State = DisplayDevice.StateFlags;
		printf("%s\n", DisplayDevice.DeviceName);
		printf("  %s\n", DisplayDevice.DeviceString);
		printf("  Device state: %s%s%s%s%s%s\n",
			(State & DISPLAY_DEVICE_ACTIVE) ? "active" : "deactive",
			(State & DISPLAY_DEVICE_MIRRORING_DRIVER) ? " mirroring" : "",
			(State & DISPLAY_DEVICE_MODESPRUNED) ? " modespruned" : "",
			(State & DISPLAY_DEVICE_PRIMARY_DEVICE) ? " primary" : "",
			(State & DISPLAY_DEVICE_REMOVABLE) ? " removable" : "",
			(State & DISPLAY_DEVICE_VGA_COMPATIBLE) ? " vga" : "");
		if (EnumDisplaySettingsExA(DisplayDevice.DeviceName, ENUM_CURRENT_SETTINGS, &DevMode, 0))
		{
			printf("  Current mode: %ux%u, %u Hz\n", DevMode.dmPelsWidth, DevMode.dmPelsHeight, DevMode.dmDisplayFrequency);
		}
		iDevNum++;
	}
}