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Just another update

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Ingy döt Net 2015-02-20 00:35:01 -05:00
parent a25938f123
commit 00a190b0a6
6591 changed files with 94363 additions and 23227 deletions
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60
Task/Hello-world-Line-printer/C-sharp/hello-world-line-printer.cs Normal file
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[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
public class DOCINFOA
{
[MarshalAs(UnmanagedType.LPStr)]
public string pDocName;
[MarshalAs(UnmanagedType.LPStr)]
public string pOutputFile;
[MarshalAs(UnmanagedType.LPStr)]
public string pDataType;
}
[DllImport("winspool.Drv", EntryPoint = "OpenPrinterA", CharSet = CharSet.Ansi, ExactSpelling = true)]
public static extern bool OpenPrinter([MarshalAs(UnmanagedType.LPStr)] string szPrinter, out IntPtr hPrinter, IntPtr pd);
[DllImport("winspool.Drv", EntryPoint = "StartDocPrinterA", CharSet = CharSet.Ansi, ExactSpelling = true)]
public static extern bool StartDocPrinter(IntPtr hPrinter, int level, [In, MarshalAs(UnmanagedType.LPStruct)] DOCINFOA di);
[DllImport("winspool.Drv", EntryPoint = "StartPagePrinter", CharSet = CharSet.Ansi, ExactSpelling = true)]
public static extern bool StartPagePrinter(IntPtr hPrinter);
[DllImport("winspool.Drv", EntryPoint = "EndPagePrinter", CharSet = CharSet.Ansi, ExactSpelling = true)]
public static extern bool EndPagePrinter(IntPtr hPrinter);
[DllImport("winspool.Drv", EntryPoint = "EndDocPrinter", CharSet = CharSet.Ansi, ExactSpelling = true)]
public static extern bool EndDocPrinter(IntPtr hPrinter);
[DllImport("winspool.Drv", EntryPoint = "ClosePrinter", CharSet = CharSet.Ansi, ExactSpelling = true)]
public static extern bool ClosePrinter(IntPtr hPrinter);
[DllImport("winspool.Drv", EntryPoint = "WritePrinter", CharSet = CharSet.Ansi, ExactSpelling = true)]
public static extern bool WritePrinter(IntPtr hPrinter, IntPtr pBytes, Int32 dwCount, out Int32 dwWritten);
public void HelloWorld()
{
IntPtr hPrinter;
bool openSuccessful = OpenPrinter("My Printer", out hPrinter, IntPtr.Zero);
if (openSuccessful)
{
DOCINFOA docInfo = new DOCINFOA();
docInfo.pDocName = "Hello World Example";
docInfo.pOutputFile = null;
docInfo.pDataType = "RAW";
if (StartDocPrinter(hPrinter, 1, docInfo))
{
StartPagePrinter(hPrinter);
const string helloWorld = "Hello World!";
IntPtr buf = Marshal.StringToCoTaskMemAnsi(helloWorld);
int bytesWritten;
WritePrinter(hPrinter, buf, helloWorld.Length, out bytesWritten);
Marshal.FreeCoTaskMem(buf);
}
if (EndPagePrinter(hPrinter))
if (EndDocPrinter(hPrinter))
ClosePrinter(hPrinter);
}
}