private void Init(PrintPageEventArgs e)
{
#if false
long x1 = System.DateTime.Now.Ticks;
#endif
// Set these now because the Graphics object will be locked below.
m_rcDst = m_rcSrc = new Rect(0, 0, (int)e.Graphics.DpiX, (int)e.Graphics.DpiY);
int dpix;
if (MiscUtils.IsUnix)
dpix = 72;
else
dpix = (int)e.Graphics.DpiX;
m_dxpAvailWidth = PixelsFrom100ths(e.MarginBounds.Width, dpix);
// Create and initialize a print context.
m_vwPrintContext = VwPrintContextWin32Class.Create();
// TODO: When we provide a way for the user to specify the nFirstPageNo (i.e. the
// first argument to SetPagePrintInfo), then change the arguments to
// SetPagePrintInfo.
m_vwPrintContext.SetPagePrintInfo(1, 1, 65535, 1, false);
SetMargins(e);
IVwGraphics vwGraphics = VwGraphicsWin32Class.Create();
IntPtr hdc = IntPtr.Zero;
try
{
// Get the printer's hdc and use it to initialize other stuff.
hdc = e.Graphics.GetHdc();
((IVwGraphicsWin32)vwGraphics).Initialize(hdc);
m_vwPrintContext.SetGraphics(vwGraphics);
// Make a rootbox for printing and initialize it.
m_rootb = VwRootBoxClass.Create();
m_rootb.SetSite(this);
m_rootb.DataAccess = m_sda;
m_rootb.SetRootObject(m_hvo, m_vc, m_frags, m_styleSheet);
m_rootb.InitializePrinting(m_vwPrintContext);
m_totalNumberOfPages = m_rootb.GetTotalPrintPages(m_vwPrintContext);
m_psettings = e.PageSettings.PrinterSettings;
SetPrintRange();
}
catch (Exception ex)
{
m_rootb = null;
throw new ContinuableErrorException("An error has occurred during the setup required for printing.", ex);
}
finally
{
if (hdc != IntPtr.Zero)
{
vwGraphics.ReleaseDC();
e.Graphics.ReleaseHdc(hdc);
}
}
#if false
long x2 = System.DateTime.Now.Ticks;
Debug.WriteLine("PrintRootSite.Init() took " + DeltaTime(x1,x2) + " seconds.");
#endif
}
#endregion
