/// <summary>
/// デバイスコンテキストからモニタを取得
/// </summary>
/// <param name="hDC"></param>
/// <returns></returns>
private static MonitorInfo GetMonitorFromHDC(IntPtr hDC)
{
var mi = new MONITORINFOEX();
var success = NativeMethods.GetMonitorInfo(hDC, mi);
if (!success)
{
throw new InvalidOperationException();
}
var dc = NativeMethods.CreateDC(mi.szDevice, mi.szDevice, null, IntPtr.Zero);
var lpcbName = 0U;
NativeMethods.GetICMProfile(dc, ref lpcbName, null);
var sb = new StringBuilder((int)lpcbName);
NativeMethods.GetICMProfile(dc, ref lpcbName, sb);
NativeMethods.DeleteDC(dc);
var profileUri = sb.ToString();
var context = new ColorContext(new Uri(profileUri));
return(new MonitorInfo
{
DeviceName = mi.szDevice,
MonitorProfile = context,
Bounds = new Rect(
mi.rcMonitor.Left,
mi.rcMonitor.Top,
mi.rcMonitor.Right - mi.rcMonitor.Left,
mi.rcMonitor.Bottom - mi.rcMonitor.Top),
WorkingArea = new Rect(
mi.rcWork.Left,
mi.rcWork.Top,
mi.rcWork.Right - mi.rcWork.Left,
mi.rcWork.Bottom - mi.rcWork.Top),
IsPrimary = mi.dwFlags == 1
});
}
internal static extern bool GetMonitorInfo(IntPtr hmonitor, [In, Out] MONITORINFOEX info);
