IPAddress ip = IPAddress.Parse("192.168.1.212");
IPEndPoint iport = new IPEndPoint(ip, 9100);//9100为小票打印机指定端口
Socket soc = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
soc.Connect(iport);
bitmap = new Bitmap(@"D:\300X200.bmp");
soc.Send(bmpToByte(bitmap));
soc.Close();
public static byte[] bmpToByte(Bitmap bmp)
{
int h = bmp.Height / 24 + 1;
int w = bmp.Width;
byte[][] all = new byte[2 + 2 * h + h * w][];
all[0] = new byte[] { 0x1B, 0x33, 0x00 };
Color pixelColor;
// ESC * m nL nH 点阵图
byte[] escBmp = new byte[] { 0x1B, 0x2A, 0x21, (byte)(w % 256), (byte)(w / 256) };
// 每行进行打印
for (int i = 0; i < h; i++)
{
all[i * (w + 2) + 1] = escBmp;
for (int j = 0; j < w; j++)
{
byte[] data = new byte[] { 0x00, 0x00, 0x00 };
for (int k = 0; k < 24; k++)
{
if (((i * 24) + k) < bmp.Height)
{
pixelColor = bmp.GetPixel(j, (i * 24) + k);
if (pixelColor.R == 0)
{
data[k / 8] += (byte)(128 >> (k % 8));
}
}
}
all[i * (w + 2) + j + 2] = data;
}
//换行
all[(i + 1) * (w + 2)] = PrinterCmdUtils.nextLine(1);
}
all[h * (w + 2) + 1] = PrinterCmdUtils.nextLine(2);
return byteMerger(all);
}
public static byte[] byteMerger(byte[][] byteList)
{
int Length = 0;
for (int i = 0; i < byteList.Length; i++)
{
Length += byteList[i].Length;
}
byte[] result = new byte[Length];
int index = 0;
for (int i = 0; i < byteList.Length; i++)
{
byte[] nowByte = byteList[i];
for (int k = 0; k < byteList[i].Length; k++)
{
result[index] = nowByte[k];
index++;
}
}
return result;
}