在.net中获取字体信息

几年前为了一个工作项目我不得不这么做。我不能发布这个,因为它是专有的,但TT字体的规范是 here

我还编写了一个名为BigEndianReader的实用程序类来处理从bigendian有序流中读取数据的操作,我很高兴将其放在这里,以使您的生活更轻松:

public class BigEndianReader
{
    public static bool Read(Stream stm, out uint i)
    {
        int bhihi = stm.ReadByte();
        if (bhihi == -1)
        {
            i = 0;
            return false;
        }
        int bhi = stm.ReadByte();
        if (bhi == -1)
        {
            i = 0;
            return false;
        }
        int blo = stm.ReadByte();
        if (blo == -1)
        {
            i = 0;
            return false;
        }
        int blolo = stm.ReadByte();
        if (blolo == -1)
        {
            i = 0;
            return false;
        }
        i = (uint)((bhihi << 24) | (bhi << 16) | (blo << 8) | blolo);
        return true;
    }

    public static bool Read(Stream stm, out int i)
    {
        int bhihi = stm.ReadByte();
        if (bhihi == -1)
        {
            i = 0;
            return false;
        }
        int bhi = stm.ReadByte();
        if (bhi == -1)
        {
            i = 0;
            return false;
        }
        int blo = stm.ReadByte();
        if (blo == -1)
        {
            i = 0;
            return false;
        }
        int blolo = stm.ReadByte();
        if (blolo == -1)
        {
            i = 0;
            return false;
        }
        i = ((bhihi << 24) | (bhi << 16) | (blo << 8) | blolo);
        return true;
    }


    public static bool Read(Stream stm, out ushort s)
    {
        int bhi = stm.ReadByte();
        if (bhi == -1)
        {
            s = 0;
            return false;
        }
        int blo = stm.ReadByte();
        if (blo == -1)
        {
            s = 0;
            return false;
        }
        s = (ushort)(((bhi << 8) | blo) & 0xffff);
        return true;
    }

    public static bool Read(Stream stm, out short s)
    {
        int bhi = stm.ReadByte();
        if (bhi == -1)
        {
            s = 0;
            return false;
        }
        int blo = stm.ReadByte();
        if (blo == -1)
        {
            s = 0;
            return false;
        }
        s = (short)(((bhi << 8) | blo) & 0xffff);
        return true;
    }
}

这不是特别优雅,但很容易使用:

int val;

if (!BigEndianReader.Read(stm, out val))
    throw new SomeErrorOfSomeKind();

我想如果你足够关心的话,你可以把所有的扩展方法都放到流上,然后你可以读到:

int val;

if(!stm.BERead(out val)) // BE prefix for Big Endian
    throw new SomeErrorOfSomeKind();