private void UpdatePageRange(PrinterSettings ps)
{
NumPages = printDocument.GetNumPages(pageSetupDlg.PageSettings);
int oldMax = ps.MaximumPage;
ps.MinimumPage = 1;
ps.MaximumPage = NumPages;
if (ps.FromPage < 1)
{
ps.FromPage = 1;
}
if (ps.FromPage > NumPages)
{
ps.FromPage = NumPages;
}
if (ps.ToPage < 1 || ps.ToPage > NumPages)
{
ps.ToPage = NumPages;
}
if (ps.ToPage < ps.FromPage)
{
ps.ToPage = ps.FromPage;
}
if (ps.PrintRange == PrintRange.AllPages ||
ps.PrintRange == PrintRange.SomePages && oldMax < ps.MaximumPage && ps.ToPage == oldMax && (ps.FromPage == 1 || ps.FromPage != oldMax)) // dialog doesn't show actual number of pages, so we should help user, expanding max range, if it seems user wanted to print all pages up to the end
{
ps.ToPage = ps.MaximumPage;
}
}
public void Test()
{
using (var bm = new Bitmap(2000, 1000))
using (var pd = new MapPrintDocument())
{
bm.SetResolution(150, 150);
pd.SetImage(bm);
pd.PrintArea = new Rectangle(300, 0, 1700, 1000);
var pageSize = new Size(900, 1300);
int n = pd.GetNumPages(pageSize);
sb.AppendLine("pages: " + n.ToString());
for (int i = 0; i < n; i++)
{
var r = pd.GetSrcRect(i, pageSize);
sb.AppendLine("page " + i.ToString() + ": " + r.ToString());
}
}
}