public static bool SendStringToPrinter(string szPrinterName, string szString)
{
int length = szString.Length;
IntPtr intPtr = Marshal.StringToCoTaskMemAnsi(szString);
RawPrinterHelper.SendBytesToPrinter(szPrinterName, intPtr, length);
Marshal.FreeCoTaskMem(intPtr);
return(true);
}
public static bool SendFileToPrinter(string szPrinterName, string szFileName)
{
FileStream fileStream = new FileStream(szFileName, FileMode.Open);
BinaryReader binaryReader = new BinaryReader(fileStream);
byte[] array = new byte[fileStream.Length];
IntPtr intPtr = new IntPtr(0);
int num = Convert.ToInt32(fileStream.Length);
byte[] source = binaryReader.ReadBytes(num);
IntPtr intPtr2 = Marshal.AllocCoTaskMem(num);
Marshal.Copy(source, 0, intPtr2, num);
bool result = RawPrinterHelper.SendBytesToPrinter(szPrinterName, intPtr2, num);
Marshal.FreeCoTaskMem(intPtr2);
fileStream.Close();
return(result);
}
