///
/// 设置打印纸类型的尺寸，如果没有参数提供的类型则新建一个类型，
///
/// 打印机名称
/// 打印纸类型名称
/// 宽度，单位0.1毫米，需要在打印机允许的尺寸之内，否则按照默认打印纸类型打印
/// 高度，单位0.1毫米，需要在打印机允许的尺寸之内，否则按照默认打印纸类型打印
public void SetPrintForm(string printerName, string paperName, float width, float height)
{
if (PlatformID.Win32NT == Environment.OSVersion.Platform)
{
const int PRINTER_ACCESS_USE = 0x00000008;
const int PRINTER_ACCESS_ADMINISTER = 0x00000004;
structPrinterDefaults defaults = new structPrinterDefaults();
defaults.pDatatype = null;
defaults.pDevMode = IntPtr.Zero;
defaults.DesiredAccess = PRINTER_ACCESS_ADMINISTER | PRINTER_ACCESS_USE;
IntPtr hPrinter = IntPtr.Zero;
if (OpenPrinter(printerName, out hPrinter, ref defaults))
{
try
{
structFormInfo1 formInfo = new structFormInfo1();
formInfo.Flags = 0;
formInfo.pName = paperName;
formInfo.Size.width = (int)(width * 100.0);
formInfo.Size.height = (int)(height * 100.0);
formInfo.ImageableArea.left = 0;
formInfo.ImageableArea.right = formInfo.Size.width;
formInfo.ImageableArea.top = 0;
formInfo.ImageableArea.bottom = formInfo.Size.height;
bool rslt = false;
if (GetPrintForm(printerName, paperName) != null)
{
rslt = SetForm(hPrinter, paperName, 1, ref formInfo);
}
else
{
this.AddCustomPaperSize(printerName, paperName, width, height);
rslt = true;
}
if (!rslt)
{
StringBuilder strBuilder = new StringBuilder();
strBuilder.AppendFormat("添加纸张{0}时发生错误!, 系统错误号: {1}", paperName, GetLastError());
//throw new ApplicationException(strBuilder.ToString());
MessageBox.Show(strBuilder.ToString());
}
}
finally
{
ClosePrinter(hPrinter);
}
}
}
}
internal static extern bool AddForm(IntPtr phPrinter, [MarshalAs(UnmanagedType.I4)] int level, ref structFormInfo1 form);
internal static extern bool SetForm(IntPtr phPrinter, [MarshalAs(UnmanagedType.LPTStr)] string pName, [MarshalAs(UnmanagedType.I4)] int level, ref structFormInfo1 form);
///
/// 增加打印纸类型
///
/// 打印机名称
/// 打印纸类型名称
/// 宽度，单位0.1毫米，需要在打印机允许的尺寸之内，否则按照默认打印纸类型打印
/// 高度，单位0.1毫米，需要在打印机允许的尺寸之内，否则按照默认打印纸类型打印
public void AddCustomPaperSize(string printerName, string paperName, float width, float height)
{
if (PlatformID.Win32NT == Environment.OSVersion.Platform)
{
const int PRINTER_ACCESS_USE = 0x00000008;
const int PRINTER_ACCESS_ADMINISTER = 0x00000004;
structPrinterDefaults defaults = new structPrinterDefaults();
defaults.pDatatype = null;
defaults.pDevMode = IntPtr.Zero;
defaults.DesiredAccess = PRINTER_ACCESS_ADMINISTER | PRINTER_ACCESS_USE;
IntPtr hPrinter = IntPtr.Zero;
if (OpenPrinter(printerName, out hPrinter, ref defaults))
{
try
{
DeleteForm(hPrinter, paperName);
structFormInfo1 formInfo = new structFormInfo1();
formInfo.Flags = 0;
formInfo.pName = paperName;
formInfo.Size.width = (int)(width * 100.0);
formInfo.Size.height = (int)(height * 100.0);
formInfo.ImageableArea.left = 0;
formInfo.ImageableArea.right = formInfo.Size.width;
formInfo.ImageableArea.top = 0;
formInfo.ImageableArea.bottom = formInfo.Size.height;
if (!AddForm(hPrinter, 1, ref formInfo))
{
StringBuilder strBuilder = new StringBuilder();
strBuilder.AppendFormat("添加纸张{0}时发生错误!, 系统错误号: {1}", paperName, GetLastError());
throw new ApplicationException(strBuilder.ToString());
}
}
finally
{
ClosePrinter(hPrinter);
}
}
else
{
StringBuilder strBuilder = new StringBuilder();
strBuilder.AppendFormat("打开打印机{0} 时出现异常!, 系统错误号: {1}", printerName, GetLastError());
throw new ApplicationException(strBuilder.ToString());
}
}
else
{
structDevMode pDevMode = new structDevMode();
IntPtr hDC = CreateDC(null, printerName, null, ref pDevMode);
if (hDC != IntPtr.Zero)
{
const long DM_PAPERSIZE = 0x00000002L;
const long DM_PAPERLENGTH = 0x00000004L;
const long DM_PAPERWIDTH = 0x00000008L;
pDevMode.dmFields = (int)(DM_PAPERSIZE | DM_PAPERWIDTH | DM_PAPERLENGTH);
pDevMode.dmPaperSize = 256;
pDevMode.dmPaperWidth = (short)(width * 2.54 * 10000.0);
pDevMode.dmPaperLength = (short)(height * 2.54 * 10000.0);
ResetDC(hDC, ref pDevMode);
DeleteDC(hDC);
}
}
}
