在XNA中获得支持的屏幕分辨率?
答
只是使用这个:
foreach (DisplayMode mode in GraphicsAdapter.DefaultAdapter.SupportedDisplayModes) {
//mode.whatever (and use any of avaliable information)
}
但它会给你很少的重复,因为它也考虑到折射率,所以你可能会包括aswel,或做一些过滤。
答
我不是最新的XNA,但我不认为有一个快速和简单的功能。有一种使用旧的WinForms API的方法,但是因为我个人不希望链接到其他应用程序中,最简单的方法就是使用本机函数。
首先,定义将要使用本机结构:
[StructLayout(LayoutKind.Sequential)]
internal struct DEVMODE
{
private const int CCHDEVICENAME = 0x20;
private const int CCHFORMNAME = 0x20;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 0x20)]
public string dmDeviceName;
public short dmSpecVersion;
public short dmDriverVersion;
public short dmSize;
public short dmDriverExtra;
public int dmFields;
public int dmPositionX;
public int dmPositionY;
public int dmDisplayOrientation;
public int dmDisplayFixedOutput;
public short dmColor;
public short dmDuplex;
public short dmYResolution;
public short dmTTOption;
public short dmCollate;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 0x20)]
public string dmFormName;
public short dmLogPixels;
public int dmBitsPerPel;
public int dmPelsWidth;
public int dmPelsHeight;
public int dmDisplayFlags;
public int dmDisplayFrequency;
public int dmICMMethod;
public int dmICMIntent;
public int dmMediaType;
public int dmDitherType;
public int dmReserved1;
public int dmReserved2;
public int dmPanningWidth;
public int dmPanningHeight;
}
我们还需要定义两个本地函数,我们将使用:
[DllImport("user32.dll")]
private static extern bool EnumDisplaySettings(string lpszDeviceName, int iModeNum, ref DEVMODE lpDevMode);
[DllImport("user32.dll")]
private static extern int GetSystemMetrics(int nIndex);
而在去年,我们的功能,列出所有屏幕分辨率和一个获得当前的屏幕分辨率:
public static List<string> GetScreenResolutions()
{
var resolutions = new List<string>();
try
{
var devMode = new DEVMODE();
int i = 0;
while (EnumDisplaySettings(null, i, ref devMode))
{
resolutions.Add(string.Format("{0}x{1}", devMode.dmPelsWidth, devMode.dmPelsHeight));
i++;
}
resolutions = resolutions.Distinct(StringComparer.InvariantCulture).ToList();
}
catch (Exception ex)
{
Console.WriteLine("Could not get screen resolutions.");
}
return resolutions;
}
public static string GetCurrentScreenResolution()
{
int width = GetSystemMetrics(0x00);
int height = GetSystemMetrics(0x01);
return string.Format("{0}x{1}", width, height);
}
虽然接受的答案是要走的路,+1解释如何独立于XNA做这样的事情。 – 2014-05-02 22:33:36