/* 经过测试:
*
* a). 同个打印服务器内的所有打印机, 结果全都一样;
* 例如:
* GetForms("安装的本地打印机") == GetForms(NULL);
* GetForms("链接的共享打印机") 结果来自共享的计算机;
*
* b). 调用 AddForm 添加表单, 即使指定打印机名, 本机(不含链接)所有支持该尺寸的打印机都会加上;
*
* c). 通过系统操作:
* 安装打印机后, 打开打印机首选项 => 高级 => 纸张规格: 已包含支持的本机自定义的纸张;
*
* 结论:
* 添加纸张针对的是: "打印服务器", 该服务器下的所有打印机, 只要支持该尺寸都会显示在可选的纸张列表里;
*/
internal static void ThunkAddForm(IntPtr hPrinter, FormInfo1 pForm)
{
var level = 1;
var type = typeof(FormInfo1);
var pBuffer = IntPtr.Zero;
try
{
pBuffer = Marshal.AllocHGlobal(Marshal.SizeOf(type));
Marshal.StructureToPtr(pForm, pBuffer, false /*仅在指针位置存在旧的同类数据时才设置为真*/);
if (!AddForm(hPrinter, level, pBuffer))
{
Error.ThrowLastError();
}
}
finally
{
if (pBuffer != IntPtr.Zero)
{
Marshal.DestroyStructure(pBuffer, type); // 用于销毁结构的引用字段占用的内存;
Marshal.FreeHGlobal(pBuffer);
}
}
}
static void SetForm(string pPrinterName)
{
PrinterDefaults pDefault = null;
if (pPrinterName != null)
{
pDefault = new PrinterDefaults()
{
DesiredAccess = (int)PrintAccessRights.PrinterGenericExecute
}
}
;
else // String.Empty 将抛异常: 打印机名无效;
{
pDefault = new PrinterDefaults()
{
DesiredAccess = (int)PrintAccessRights.ServerGenericRead
}
};
IntPtr hPrinter;
if (!Native.OpenPrinter(pPrinterName, out hPrinter, pDefault))
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
var w2 = (int)(215.9f * 1000);
var h2 = (int)(279.4f * 1000);
var pFormName = "Test241/2";
var formInfo1 = new FormInfo1()
{
pName = pFormName,
Flags = FormInfoFlags.User,
// Unit: 0.001mm.
Size = new SIZE(w2, h2),
// Unit: 0.001mm.
ImageableArea = new RECT(0, 0, w2, h2),
};
Native.ThunkSetForm(hPrinter, pFormName, formInfo1);
var ps32 = GetPrinterFormsWithLevel1(pPrinterName).Cast <FormInfo2>().Where(p => p.Flags == FormInfoFlags.User).ToArray();
}
internal PrintForm(FormInfo1 form)
{
this._Flags = form.Flags;
this._Name = form.pName;
this._Unit = PrintSystemUnit.ThousandthsOfMillimeter;
var size = form.Size;
this._Width = size.cx;
this._Height = size.cy;
var area = form.ImageableArea;
this._LeftMargin = area.left;
this._RightMargin = size.cx - area.right;
this._TopMargin = area.top;
this._BottomMargin = size.cy - area.bottom;
}
public static void AddFormOfServer(string pPrinterName, string pFormName, int width, int height)
{
PrinterDefaults pDefault = null;
//if (pPrinterName != null)
// pDefault = new PrinterDefaults() { DesiredAccess = (int)PrintAccessRights.PrinterGenericExecute };
//else // String.Empty 将抛异常: 打印机名无效;
pDefault = new PrinterDefaults()
{
DesiredAccess = (int)PrintAccessRights.ServerGenericRead
};
var hPrinter = IntPtr.Zero;
try
{
if (!Native.OpenPrinter(pPrinterName, out hPrinter, pDefault))
{
Error.ThrowLastError();
}
var form = new FormInfo1()
{
Flags = FormInfoFlags.User,
pName = pFormName,
Size = new SIZE(width, height),
ImageableArea = new RECT(0, 0, width, height),
};
// Native.ThunkSetForm(hPrinter, "Werp214/3", form);
// Add
Native.ThunkAddForm(hPrinter, form);
}
finally
{
Native.ClosePrinter(hPrinter);
hPrinter = IntPtr.Zero;
}
}
static void AddOrUpdateForm(IntPtr hPrinter, string pFormName, double width, double height, PrintSystemUnit unit)
{
var level = 1;
var o = Native.ThunkGetForm(hPrinter, pFormName, level);
if (o != null)
{
var form = (FormInfo1)o;
if (form.Flags == FormInfoFlags.Builtin)
{
throw new ArgumentException("内建规格不可修改");
}
var w = (int)PrintSystemUnitConvert.Convert(width, unit, PrintSystemUnit.ThousandthsOfMillimeter);
var h = (int)PrintSystemUnitConvert.Convert(height, unit, PrintSystemUnit.ThousandthsOfMillimeter);
form.Size = new SIZE(w, h);
form.ImageableArea = new RECT(0, 0, w, h);
// Update
Native.ThunkSetForm(hPrinter, pFormName, form);
}
else
{
var w = (int)PrintSystemUnitConvert.Convert(width, unit, PrintSystemUnit.ThousandthsOfMillimeter);
var h = (int)PrintSystemUnitConvert.Convert(height, unit, PrintSystemUnit.ThousandthsOfMillimeter);
var form = new FormInfo1()
{
Flags = FormInfoFlags.User,
pName = pFormName,
Size = new SIZE(w, h),
ImageableArea = new RECT(0, 0, w, h),
};
// Add
Native.ThunkAddForm(hPrinter, form);
}
}