How many characters are in the string? Public static bool SendStringToPrinter( string szPrinterName, string szString ) Free the unmanaged memory that you allocated earlier. Send the unmanaged bytes to the printer.īSuccess = SendBytesToPrinter(szPrinterName, pUnmanagedBytes, nLength) Marshal.Copy(bytes, 0, pUnmanagedBytes, nLength) Copy the managed byte array into the unmanaged array. PUnmanagedBytes = Marshal.AllocCoTaskMem(nLength) Allocate some unmanaged memory for those bytes. Read the contents of the file into the array. Dim an array of bytes big enough to hold the file's contents. Public static bool SendFileToPrinter( string szPrinterName, string szFileName )įileStream fs = new FileStream(szFileName, FileMode.Open) If you did not succeed, GetLastError may give more information If( OpenPrinter( szPrinterName.Normalize(), out hPrinter, IntPtr.Zero ) )īSuccess = WritePrinter(hPrinter, pBytes, dwCount, out dwWritten) Public static bool SendBytesToPrinter( string szPrinterName, IntPtr pBytes, Int32 dwCount)īool bSuccess = false // Assume failure unless you specifically succeed. Returns true on success, false on failure. of bytes, the function sends those bytes to the print queue. When the function is given a printer name and an unmanaged array Public static extern bool WritePrinter(IntPtr hPrinter, IntPtr pBytes, Int32 dwCount, out Int32 dwWritten ) Public static extern bool EndPagePrinter(IntPtr hPrinter) Public static extern bool StartPagePrinter(IntPtr hPrinter) Public static extern bool EndDocPrinter(IntPtr hPrinter) Public static extern bool StartDocPrinter( IntPtr hPrinter, Int32 level, DOCINFOA di) Public static extern bool ClosePrinter(IntPtr hPrinter) Public static extern bool OpenPrinter( string szPrinter, out IntPtr hPrinter, IntPtr pd) Now we need to properly distribute the strips on the body and at the same time we still have to take into account that the figure is not flat and the stripes are bent in accordance with the roundness of the sides and legs.This way you will be able to send ZPL to a printer no matter how it is connected ( LPT, USB, Network Share.)Ĭreate the RawPrinterHelper class (from the Microsoft article on How to send raw data to a printer by using Visual C#. The head is like a horse and is also very large. The tail of the zebras is not the same model as the horses (bushy broom), but rather like a broom with a handle.ĭraw the front legs: one is also the supporting one, the second is brought forward and angularly bent. So we got to drawing the feet – one is the supporting one, the second leg is laid back. Now we will learn how to draw a zebra when it goes. I hope that you agree with me that every time we do not just learn to draw a particular animal at a particular moment in his life, but we learn to paint this animal in general-in any situation and the position it can take. But do not draw these strips mechanically – like a shadow from the fence. The body of the zebra is decorated with a pattern of cross strips. On the head and along the neck and back, the mane resembling a rigid brush. The head, like the other horses, looks great: The tummy is tight, the back is with a slight deflection – the body looks very athletic:ĭraw a thin and slender hind legs and a fairly long tail with a tassel at the end. Zebra drawing lesson 1ĭraw the body as it is the largest part of the whole animal. In the world there are several types of zebras, they differ mainly in the structure and color of the strips, but we will not go into these taxonomic subtleties. Another thing is that in fact they are not very funny, they are so wild that they do not give in to domestication (respect!) And people destroy the natural habitats of zebras the way they can. Anyone from child knows about amusing black-and-white striped horses living in Africa. I’m sure that you do not need to explain who this zebra is.
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