private static void UpdateSettings(NativeMethods.PAGESETUPDLG data, PageSettings pageSettings,
PrinterSettings printerSettings)
{
// SetHDevMode demands AllPrintingAndUnmanagedCode Permission : Since we are calling that function we should Assert the permision,
IntSecurity.AllPrintingAndUnmanagedCode.Assert();
try
{
pageSettings.SetHdevmode(data.hDevMode);
if (printerSettings != null)
{
printerSettings.SetHdevmode(data.hDevMode);
printerSettings.SetHdevnames(data.hDevNames);
}
}
finally
{
CodeAccessPermission.RevertAssert();
}
Margins newMargins = new Margins();
newMargins.Left = data.marginLeft;
newMargins.Top = data.marginTop;
newMargins.Right = data.marginRight;
newMargins.Bottom = data.marginBottom;
PrinterUnit fromUnit = ((data.Flags & NativeMethods.PSD_INHUNDREDTHSOFMILLIMETERS) != 0)
? PrinterUnit.HundredthsOfAMillimeter
: PrinterUnit.ThousandthsOfAnInch;
pageSettings.Margins = PrinterUnitConvert.Convert(newMargins, fromUnit, PrinterUnit.Display);
}
private static void UpdateSettings(NativeMethods.PAGESETUPDLG data, PageSettings pageSettings,
PrinterSettings printerSettings)
{
pageSettings.SetHdevmode(data.hDevMode);
if (printerSettings != null)
{
printerSettings.SetHdevmode(data.hDevMode);
printerSettings.SetHdevnames(data.hDevNames);
}
Margins newMargins = new Margins();
newMargins.Left = data.marginLeft;
newMargins.Top = data.marginTop;
newMargins.Right = data.marginRight;
newMargins.Bottom = data.marginBottom;
PrinterUnit fromUnit = ((data.Flags & NativeMethods.PSD_INHUNDREDTHSOFMILLIMETERS) != 0)
? PrinterUnit.HundredthsOfAMillimeter
: PrinterUnit.ThousandthsOfAnInch;
pageSettings.Margins = PrinterUnitConvert.Convert(newMargins, fromUnit, PrinterUnit.Display);
}
protected override bool RunDialog(IntPtr hwndOwner)
{
NativeMethods.WndProc hookProcPtr = new NativeMethods.WndProc(HookProc);
if (pageSettings == null)
{
throw new ArgumentException(SR.PSDcantShowWithoutPage);
}
NativeMethods.PAGESETUPDLG data = new NativeMethods.PAGESETUPDLG();
data.lStructSize = Marshal.SizeOf(data);
data.Flags = GetFlags();
data.hwndOwner = hwndOwner;
data.lpfnPageSetupHook = hookProcPtr;
PrinterUnit toUnit = PrinterUnit.ThousandthsOfAnInch;
// Below was a breaking change from RTM and EVERETT even though this was a correct FIX.
// EnableMetric is a new Whidbey property which we allow the users to choose between the AutoConversion or not.
if (EnableMetric)
{
//take the Units of Measurement while determining the PrinterUnits...
//
StringBuilder sb = new StringBuilder(2);
int result = UnsafeNativeMethods.GetLocaleInfo(NativeMethods.LOCALE_USER_DEFAULT, NativeMethods.LOCALE_IMEASURE, sb, sb.Capacity);
if (result > 0 && int.Parse(sb.ToString(), CultureInfo.InvariantCulture) == 0)
{
toUnit = PrinterUnit.HundredthsOfAMillimeter;
}
}
if (MinMargins != null)
{
Margins margins = PrinterUnitConvert.Convert(MinMargins, PrinterUnit.Display, toUnit);
data.minMarginLeft = margins.Left;
data.minMarginTop = margins.Top;
data.minMarginRight = margins.Right;
data.minMarginBottom = margins.Bottom;
}
if (pageSettings.Margins != null)
{
Margins margins = PrinterUnitConvert.Convert(pageSettings.Margins, PrinterUnit.Display, toUnit);
data.marginLeft = margins.Left;
data.marginTop = margins.Top;
data.marginRight = margins.Right;
data.marginBottom = margins.Bottom;
}
// Ensure that the margins are >= minMargins.
// This is a requirement of the PAGESETUPDLG structure.
//
data.marginLeft = Math.Max(data.marginLeft, data.minMarginLeft);
data.marginTop = Math.Max(data.marginTop, data.minMarginTop);
data.marginRight = Math.Max(data.marginRight, data.minMarginRight);
data.marginBottom = Math.Max(data.marginBottom, data.minMarginBottom);
PrinterSettings printer = printerSettings ?? pageSettings.PrinterSettings;
data.hDevMode = printer.GetHdevmode(pageSettings);
data.hDevNames = printer.GetHdevnames();
try
{
bool status = UnsafeNativeMethods.PageSetupDlg(data);
if (!status)
{
// Debug.WriteLine(Windows.CommonDialogErrorToString(Windows.CommDlgExtendedError()));
return(false);
}
UpdateSettings(data, pageSettings, printerSettings); // yes, printerSettings, not printer
return(true);
}
finally
{
UnsafeNativeMethods.GlobalFree(new HandleRef(data, data.hDevMode));
UnsafeNativeMethods.GlobalFree(new HandleRef(data, data.hDevNames));
}
}
/// <include file='doc\PageSetupDialog.uex' path='docs/doc[@for="PageSetupDialog.RunDialog"]/*' />
/// <devdoc>
/// </devdoc>
/// <internalonly/>
protected override bool RunDialog(IntPtr hwndOwner)
{
IntSecurity.SafePrinting.Demand();
NativeMethods.WndProc hookProcPtr = new NativeMethods.WndProc(this.HookProc);
if (pageSettings == null)
{
throw new ArgumentException(SR.GetString(SR.PSDcantShowWithoutPage));
}
NativeMethods.PAGESETUPDLG data = new NativeMethods.PAGESETUPDLG();
data.lStructSize = Marshal.SizeOf(data);
data.Flags = GetFlags();
data.hwndOwner = hwndOwner;
data.lpfnPageSetupHook = hookProcPtr;
if (MinMargins != null)
{
PrinterUnit toUnit = PrinterUnit.ThousandthsOfAnInch;
Margins margins = PrinterUnitConvert.Convert(MinMargins, PrinterUnit.Display, toUnit);
data.minMarginLeft = margins.Left;
data.minMarginTop = margins.Top;
data.minMarginRight = margins.Right;
data.minMarginBottom = margins.Bottom;
}
if (pageSettings.Margins != null)
{
PrinterUnit toUnit = PrinterUnit.ThousandthsOfAnInch;
Margins margins = PrinterUnitConvert.Convert(pageSettings.Margins, PrinterUnit.Display, toUnit);
data.marginLeft = margins.Left;
data.marginTop = margins.Top;
data.marginRight = margins.Right;
data.marginBottom = margins.Bottom;
}
// Ensure that the margins are >= minMargins.
// This is a requirement of the PAGESETUPDLG structure.
//
data.marginLeft = Math.Max(data.marginLeft, data.minMarginLeft);
data.marginTop = Math.Max(data.marginTop, data.minMarginTop);
data.marginRight = Math.Max(data.marginRight, data.minMarginRight);
data.marginBottom = Math.Max(data.marginBottom, data.minMarginBottom);
PrinterSettings printer = (printerSettings == null) ? pageSettings.PrinterSettings : printerSettings;
IntSecurity.AllPrinting.Assert();
try {
data.hDevMode = printer.GetHdevmode(pageSettings);
data.hDevNames = printer.GetHdevnames();
}
finally {
CodeAccessPermission.RevertAssert();
}
try {
bool status = UnsafeNativeMethods.PageSetupDlg(data);
if (!status)
{
// Debug.WriteLine(Windows.CommonDialogErrorToString(Windows.CommDlgExtendedError()));
return(false);
}
UpdateSettings(data, pageSettings, printerSettings); // yes, printerSettings, not printer
return(true);
}
finally {
UnsafeNativeMethods.GlobalFree(new HandleRef(data, data.hDevMode));
UnsafeNativeMethods.GlobalFree(new HandleRef(data, data.hDevNames));
}
}
