private static void SetDpiAwareness(ProcessDPIAwareness val)
{
if (Environment.OSVersion.Version.Major >= 6)
{
SetProcessDpiAwareness(val);
}
}
private static void SetDpiAwareness(ProcessDPIAwareness value)
{
try
{
if (Environment.OSVersion.Version.Major >= 6)
{
SetProcessDpiAwareness(value);
}
}
catch (EntryPointNotFoundException)//this exception occures if OS does not implement this API, just ignore it.
{
}
}
public static int SetProcessDpiAwareness(ProcessDPIAwareness value)
{
//Environment.OSVersion.Version; // reports wrong values
Version os = WindowsVersionInfo.Version;
// Windows 8.1 or newer
if (os.Major > 6 || os.Major == 6 && os.Minor >= 3)
{
// We need this, else Windows will fake
// all the data about monitors inside the application
return(ShcoreInterop.SetProcessDpiAwareness(ProcessDPIAwareness.ProcessPerMonitorDPIAware));
}
return(0);
}
/// <summary>
/// 设置进程 Dpi 感知的类型，
/// 此函数在 Windows Vista 以及以上的系统中受支持，
/// 否则调用无效，返回 <see cref="LastErrorCode.UnKnown"/> 未知错误的结果。
/// </summary>
public static NativeApiResult <Int32> SetProcessDpiAwareness(ProcessDPIAwareness dpiAwarenessValue)
{
NativeApiResult <Int32> result = null;
if (Environment.OSVersion.Version.Major >= 6 && Environment.OSVersion.Version.Minor >= 2)
{
var setResult = SetProcessDpiAwarenessNative((Int32)dpiAwarenessValue);
result = NativeApiResult.Create(setResult, NativeApiResult.GetLastError());
}
else
{
result = NativeApiResult.Create(-1, (Int32)LastErrorCode.UnKnown);
}
return(result);
}
private static extern int SetProcessDpiAwareness(ProcessDPIAwareness value);
public static extern int SetProcessDpiAwareness(ProcessDPIAwareness value);
internal static extern bool SetProcessDpiAwareness(ProcessDPIAwareness awareness);
static extern int SetProcessDpiAwareness([In] ProcessDPIAwareness value);
internal static extern void GetProcessDpiAwareness(IntPtr hprocess, out ProcessDPIAwareness awareness);