public static Int32 PixelsPerInch(Orientation orientation)
{
Int32 capIndex = (orientation == Orientation.Horizontal) ? 0x58 : 90;
using (DCSafeHandle handle = UnsafeNativeMethods.CreateDC("DISPLAY"))
{
return(handle.IsInvalid ? 0x60 : UnsafeNativeMethods.GetDeviceCaps(handle, capIndex));
}
}
internal static int PixelsPerInch(Orientation orientation)
{
int nIndex = (orientation == Orientation.Horizontal ?
NativeMethods.LOGPIXELSX :
NativeMethods.LOGPIXELSY);
using (DCSafeHandle screenDC = UnsafeNativeMethods.CreateDC(DISPLAY))
{
return(screenDC.IsInvalid ? defaultPixelsPerInch :
UnsafeNativeMethods.GetDeviceCaps(screenDC, nIndex));
}
}
public static extern Int32 GetDeviceCaps(DCSafeHandle hDC, Int32 nIndex);
