internal SystemForm(FORM_INFO_1 form)
{
this.Name = form.Name;
this.IsUserForm = form.Flags == 0;
this.PageSize = ((Size)form.Size);
this.ImageableArea = (Rect)form.ImageableArea;
}
protected override void ProcessRecord()
{
if (string.IsNullOrWhiteSpace(Name))
{
throw new ArgumentNullException(nameof(Name));
}
if (Size.IsEmpty)
{
throw new ArgumentNullException(nameof(Size));
}
if (Size.Height < Margin.Top + Margin.Bottom ||
Size.Width < Margin.Left + Margin.Right)
{
throw new InvalidOperationException("Margins exceed pagesize");
}
Size pageSize = Size;
Rect imageableArea = new Rect(Margin.Left, Margin.Top,
pageSize.Width - (Margin.Left + Margin.Right),
pageSize.Height - (Margin.Top + Margin.Bottom));
switch (Units)
{
case FormUnits.Inches:
pageSize = InchesToMicrons(pageSize);
imageableArea = new Rect(InchesToMicrons(imageableArea.TopLeft), InchesToMicrons(imageableArea.BottomRight));
break;
case FormUnits.Millimeters:
pageSize = MMToMicrons(pageSize);
imageableArea = new Rect(MMToMicrons(imageableArea.TopLeft), MMToMicrons(imageableArea.BottomRight));
break;
}
using (var hServer = OpenPrinter(null))
{
var form = new FORM_INFO_1()
{
Flags = 0,
Name = this.Name,
Size = (SIZEL)pageSize,
ImageableArea = (RECTL)imageableArea
};
if (!AddForm(hServer, 1, ref form))
{
throw new Win32Exception();
}
}
}
internal static extern bool AddForm(SafePrinterHandle hPrinter, int level, [In] ref FORM_INFO_1 form);
