/// <summary>
/// This is the event handler for PrintManager.PrintTaskRequested.
/// In order to ensure a good user experience, the system requires that the app handle the PrintTaskRequested event within the time specified by PrintTaskRequestedEventArgs.Request.Deadline.
/// Therefore, we use this handler to only create the print task.
/// The print settings customization can be done when the print document source is requested.
/// </summary>
/// <param name="sender">PrintManager</param>
/// <param name="e">PrintTaskRequestedEventArgs</param>
protected override void PrintTaskRequested(PrintManager sender, PrintTaskRequestedEventArgs e)
{
PrintTask printTask = null;
printTask = e.Request.CreatePrintTask("C# Printing SDK Sample", sourceRequestedArgs =>
{
PrintTaskOptionDetails printDetailedOptions = PrintTaskOptionDetails.GetFromPrintTaskOptions(printTask.Options);
IList <string> displayedOptions = printDetailedOptions.DisplayedOptions;
// Choose the printer options to be shown.
// The order in which the options are appended determines the order in which they appear in the UI
displayedOptions.Clear();
displayedOptions.Add(Windows.Graphics.Printing.StandardPrintTaskOptions.Copies);
displayedOptions.Add(Windows.Graphics.Printing.StandardPrintTaskOptions.Orientation);
displayedOptions.Add(Windows.Graphics.Printing.StandardPrintTaskOptions.ColorMode);
// Create a new list option
PrintCustomItemListOptionDetails pageFormat = printDetailedOptions.CreateItemListOption("PageRange", "Page Range");
pageFormat.AddItem("PrintAll", "Print all");
pageFormat.AddItem("PrintSelection", "Print Selection");
pageFormat.AddItem("PrintRange", "Print Range");
// Add the custom option to the option list
displayedOptions.Add("PageRange");
// Create new edit option
PrintCustomTextOptionDetails pageRangeEdit = printDetailedOptions.CreateTextOption("PageRangeEdit", "Range");
// Register the handler for the option change event
printDetailedOptions.OptionChanged += printDetailedOptions_OptionChanged;
// Register the handler for the PrintTask.Completed event.
// Print Task event handler is invoked when the print job is completed.
printTask.Completed += async(s, args) =>
{
pageRangeEditVisible = false;
selectionMode = false;
pageList.Clear();
// Notify the user when the print operation fails.
if (args.Completion == PrintTaskCompletion.Failed)
{
await scenarioPage.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
LogHelper.Log(LogLevel.Error, "Failed to print.");
});
}
await scenarioPage.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
// Restore first page to its default layout.
// Undo any changes made by a text selection.
ShowContent(null);
});
};
sourceRequestedArgs.SetSource(printDocumentSource);
});
}
private void Printmgr_PrintTaskRequested(PrintManager sender, PrintTaskRequestedEventArgs args)
{
//从参数的Request属性中获取与PrintTaskRequest的任务关联
//创建好打印内容和任务后 在调用Complete方法进行打印
var deferral = args.Request.GetDeferral();
// 创建打印任务
task = args.Request.CreatePrintTask("Print", OnPrintTaskSourceRequrested);
task.Completed += PrintTask_Completed;
PrintTaskOptionDetails printDetailedOptions = PrintTaskOptionDetails.GetFromPrintTaskOptions(task.Options);
IList <string> displayedOptions = printDetailedOptions.DisplayedOptions;
//displayedOptions.Add(Windows.Graphics.Printing.StandardPrintTaskOptions.Copies);
//displayedOptions.Add(Windows.Graphics.Printing.StandardPrintTaskOptions.Orientation);
//displayedOptions.Add(Windows.Graphics.Printing.StandardPrintTaskOptions.ColorMode);
// Create a new list option
PrintCustomItemListOptionDetails pageFormat = printDetailedOptions.CreateItemListOption("PageContent", "Pictures");
pageFormat.AddItem("PicturesText", "Pictures and text");
pageFormat.AddItem("PicturesOnly", "Pictures only");
pageFormat.AddItem("TextOnly", "Text only");
// Add the custom option to the option list
displayedOptions.Add("PageContent");
printDetailedOptions.OptionChanged += printDetailedOptions_OptionChanged;
deferral.Complete();
}
void OnPrintManagerPrintTaskRequested(PrintManager sender, PrintTaskRequestedEventArgs args)
{
PrintTask printTask = args.Request.CreatePrintTask("The Tale of Tom Kitten",
OnPrintTaskSourceRequested);
// Get PrintTaskOptionDetails for making changes to options
PrintTaskOptionDetails optionDetails =
PrintTaskOptionDetails.GetFromPrintTaskOptions(printTask.Options);
// Create the custom item
PrintCustomItemListOptionDetails pageRange =
optionDetails.CreateItemListOption("idPrintRange", "Print range");
pageRange.AddItem("idPrintAll", "Print all pages");
pageRange.AddItem("idPrintCustom", "Print custom range");
// Add it to the options
optionDetails.DisplayedOptions.Add("idPrintRange");
// Create a page-range edit item also, but this only
// comes into play when user selects "Print custom range"
optionDetails.CreateTextOption("idCustomRangeEdit", "Custom Range");
// Set a handler for the OptionChanged event
optionDetails.OptionChanged += OnOptionDetailsOptionChanged;
}
/// <summary>
/// This is the event handler for PrintManager.PrintTaskRequested.
/// </summary>
/// <param name="sender">PrintManager</param>
/// <param name="e">PrintTaskRequestedEventArgs </param>
protected virtual void PrintTaskRequested(PrintManager sender, PrintTaskRequestedEventArgs e)
{
PrintTask printTask = null;
printTask = e.Request.CreatePrintTask(JobName, async sourceRequestedArgs =>
{
var deferral = sourceRequestedArgs.GetDeferral();
PrintTaskOptionDetails printDetailedOptions = PrintTaskOptionDetails.GetFromPrintTaskOptions(printTask.Options);
IList <string> displayedOptions = printTask.Options.DisplayedOptions;
displayedOptions.Clear();
displayedOptions.Add(Windows.Graphics.Printing.StandardPrintTaskOptions.Copies);
displayedOptions.Add(Windows.Graphics.Printing.StandardPrintTaskOptions.Orientation);
displayedOptions.Add(Windows.Graphics.Printing.StandardPrintTaskOptions.PrintQuality);
displayedOptions.Add(Windows.Graphics.Printing.StandardPrintTaskOptions.MediaSize);
displayedOptions.Add(Windows.Graphics.Printing.StandardPrintTaskOptions.Collation);
displayedOptions.Add(Windows.Graphics.Printing.StandardPrintTaskOptions.Duplex);
// Preset the default value of the printer option
printTask.Options.MediaSize = PrintMediaSize.NorthAmericaLetter;
// Create a new list option
PrintCustomItemListOptionDetails margins = printDetailedOptions.CreateItemListOption("Margins", "Margins");
margins.AddItem("WideMargins", "Wide", "Each margin is 20% of the paper size", null);
margins.AddItem("ModerateMargins", "Moderate", "Each margin is 10% of the paper size", null);
margins.AddItem("NarrowMargins", "Narrow", "Each margin is 5% of the paper size", null);
// The default is ModerateMargins
ApplicationContentMarginTop = 0.1;
ApplicationContentMarginLeft = 0.1;
margins.TrySetValue("ModerateMargins");
// App tells the user some more information about what the feature means.
margins.Description = "The space between the content of your document and the edge of the paper";
// Add the custom option to the option list
displayedOptions.Add("Margins");
printDetailedOptions.OptionChanged += OnPrintDetailOptionChanged;
// Print Task event handler is invoked when the print job is completed.
printTask.Completed += async(s, args) =>
{
// Notify the user when the print operation fails.
if (args.Completion == PrintTaskCompletion.Failed)
{
await ApplicationPage.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
//MainPage.Current.NotifyUser("Failed to print.", NotifyType.ErrorMessage);
Console.WriteLine("Failed to print.");
});
}
UnregisterForPrinting();
};
sourceRequestedArgs.SetSource(printDocumentSource);
deferral.Complete();
});
}
#pragma warning disable CS1998 // Async method lacks 'await' operators and will run synchronously
async void OnPrintDetailOptionChanged(PrintTaskOptionDetails sender, PrintTaskOptionChangedEventArgs args)
#pragma warning restore CS1998 // Async method lacks 'await' operators and will run synchronously
{
bool invalidatePreview = false;
string optionId = args.OptionId as string;
if (string.IsNullOrEmpty(optionId))
{
return;
}
if (optionId == "Margins")
{
PrintCustomItemListOptionDetails marginsOption = (PrintCustomItemListOptionDetails)sender.Options["Margins"];
string marginsValue = marginsOption.Value.ToString();
switch (marginsValue)
{
case "WideMargins":
ApplicationContentMarginTop = 0.2;
ApplicationContentMarginLeft = 0.2;
break;
case "ModerateMargins":
ApplicationContentMarginTop = 0.1;
ApplicationContentMarginLeft = 0.1;
break;
case "NarrowMargins":
ApplicationContentMarginTop = 0.05;
ApplicationContentMarginLeft = 0.05;
break;
}
if (marginsValue == "NarrowMargins")
{
marginsOption.WarningText = "Narrow margins may not be supported by some printers";
}
else
{
marginsOption.WarningText = "";
}
invalidatePreview = true;
}
if (invalidatePreview)
{
//await PrintPage.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
//{
Xamarin.Forms.Device.BeginInvokeOnMainThread(() =>
{
printDocument.InvalidatePreview();
});
//});
}
}
/// <summary>
/// This is the event handler for PrintManager.PrintTaskRequested.
/// In order to ensure a good user experience, the system requires that the app handle the PrintTaskRequested event within the time specified
/// by PrintTaskRequestedEventArgs->Request->Deadline.
/// Therefore, we use this handler to only create the print task.
/// The print settings customization can be done when the print document source is requested.
/// </summary>
/// <param name="sender">The print manager for which a print task request was made.</param>
/// <param name="e">The print taks request associated arguments.</param>
protected override void PrintTaskRequested(Windows.Graphics.Printing.PrintManager sender, Windows.Graphics.Printing.PrintTaskRequestedEventArgs e)
{
PrintTask printTask = null;
printTask = e.Request.CreatePrintTask("Printing Coloring Page", sourceRequestedArgs =>
{
PrintTaskOptionDetails printDetailedOptions = PrintTaskOptionDetails.GetFromPrintTaskOptions(printTask.Options);
// Choose the printer options to be shown.
// The order in which the options are appended determines the order in which they appear in the UI
printDetailedOptions.DisplayedOptions.Clear();
printDetailedOptions.DisplayedOptions.Add(Windows.Graphics.Printing.StandardPrintTaskOptions.MediaSize);
printDetailedOptions.DisplayedOptions.Add(Windows.Graphics.Printing.StandardPrintTaskOptions.Copies);
// Create a new list option.
PrintCustomItemListOptionDetails photoSize = printDetailedOptions.CreateItemListOption("photoSize", "Photo Size");
photoSize.AddItem("SizeFullPage", "Full Page");
photoSize.AddItem("Size4x6", "4 x 6 in");
photoSize.AddItem("Size5x7", "5 x 7 in");
photoSize.AddItem("Size8x10", "8 x 10 in");
// Add the custom option to the option list.
printDetailedOptions.DisplayedOptions.Add("photoSize");
PrintCustomItemListOptionDetails scaling = printDetailedOptions.CreateItemListOption("scaling", "Scaling");
scaling.AddItem("ShrinkToFit", "Shrink To Fit");
scaling.AddItem("Crop", "Crop");
// Add the custom option to the option list.
printDetailedOptions.DisplayedOptions.Add("scaling");
// Set default orientation to landscape.
printTask.Options.Orientation = PrintOrientation.Landscape;
// Register for print task option changed notifications.
printDetailedOptions.OptionChanged += PrintDetailedOptionsOptionChanged;
// Register for print task Completed notification.
// Print Task event handler is invoked when the print job is completed.
printTask.Completed += async(s, args) =>
{
await scenarioPage.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
ClearPageCollection();
// Reset image options to default values.
this.photoScale = Scaling.ShrinkToFit;
this.photoSize = PhotoSize.SizeFullPage;
// Reset the current page description
currentPageDescription = null;
});
};
// Set the document source.
sourceRequestedArgs.SetSource(printDocumentSource);
});
}
/// <summary>
/// This is the event handler for PrintManager.PrintTaskRequested.
/// In order to ensure a good user experience, the system requires that the app handle the PrintTaskRequested event within the time specified by PrintTaskRequestedEventArgs.Request.Deadline.
/// Therefore, we use this handler to only create the print task.
/// The print settings customization can be done when the print document source is requested.
/// </summary>
/// <param name="sender">PrintManager</param>
/// <param name="e">PrintTaskRequestedEventArgs</param>
protected override void PrintTaskRequested(PrintManager sender, PrintTaskRequestedEventArgs e)
{
PrintTask printTask = null;
printTask = e.Request.CreatePrintTask("C# Printing SDK Sample",
sourceRequestedArgs =>
{
PrintTaskOptionDetails printDetailedOptions = PrintTaskOptionDetails.GetFromPrintTaskOptions(printTask.Options);
IList <string> displayedOptions = printDetailedOptions.DisplayedOptions;
// Choose the printer options to be shown.
// The order in which the options are appended determines the order in which they appear in the UI
displayedOptions.Clear();
displayedOptions.Add(Windows.Graphics.Printing.StandardPrintTaskOptions.Copies);
displayedOptions.Add(Windows.Graphics.Printing.StandardPrintTaskOptions.Orientation);
displayedOptions.Add(Windows.Graphics.Printing.StandardPrintTaskOptions.ColorMode);
// Create a new list option
PrintCustomItemListOptionDetails pageFormat = printDetailedOptions.CreateItemListOption("PageContent", "Pictures");
pageFormat.AddItem("PicturesText", "Pictures and text");
pageFormat.AddItem("PicturesOnly", "Pictures only");
pageFormat.AddItem("TextOnly", "Text only");
// Add the custom option to the option list
displayedOptions.Add("PageContent");
printDetailedOptions.OptionChanged += printDetailedOptions_OptionChanged;
// Print Task event handler is invoked when the print job is completed.
printTask.Completed += async(s, args) =>
{
// Notify the user when the print operation fails.
if (args.Completion == PrintTaskCompletion.Failed)
{
await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
rootPage.NotifyUser("Failed to print.", NotifyType.ErrorMessage);
});
}
};
sourceRequestedArgs.SetSource(printDocumentSource);
});
}
private void CreateGraphOptions(PrintTaskOptionDetails printTaskOptions)
{
PrintCustomItemListOptionDetails graphSizeOption = printTaskOptions.CreateItemListOption(nameof(GraphSize), _graphSizeOption);
graphSizeOption.AddItem(nameof(GraphSize.FullPage), _fullPageItem);
graphSizeOption.AddItem(nameof(GraphSize.Window), _windowSizeItem);
printTaskOptions.DisplayedOptions.Add(nameof(GraphSize));
PrintCustomItemListOptionDetails labelLocationOption = printTaskOptions.CreateItemListOption(nameof(LabelLocation), _labelLocationOption);
labelLocationOption.AddItem(nameof(LabelLocation.TopLeft), _topLeftItem);
labelLocationOption.AddItem(nameof(LabelLocation.TopRight), _topRightItem);
labelLocationOption.AddItem(nameof(LabelLocation.BottomLeft), _bottomLeftItem);
labelLocationOption.AddItem(nameof(LabelLocation.BottomRight), _bottomRightItem);
labelLocationOption.AddItem(nameof(LabelLocation.None), _noneItem);
printTaskOptions.DisplayedOptions.Add(nameof(LabelLocation));
}
protected virtual void PrintTaskRequested(PrintManager sender, PrintTaskRequestedEventArgs e)
{
PrintTask printTask = e.Request.CreatePrintTask("I Love Notes", sourceRequested => sourceRequested.SetSource(printDocumentSource));
PrintTaskOptionDetails printDetailedOptions = PrintTaskOptionDetails.GetFromPrintTaskOptions(printTask.Options);
printDetailedOptions.DisplayedOptions.Clear();
printDetailedOptions.DisplayedOptions.Add(Windows.Graphics.Printing.StandardPrintTaskOptions.Copies);
printDetailedOptions.DisplayedOptions.Add(Windows.Graphics.Printing.StandardPrintTaskOptions.Orientation);
printDetailedOptions.DisplayedOptions.Add(Windows.Graphics.Printing.StandardPrintTaskOptions.ColorMode);
PrintCustomItemListOptionDetails tagsDisplay = printDetailedOptions.CreateItemListOption("Tags", "Tags");
tagsDisplay.AddItem("ShowTags", "Show Tags");
tagsDisplay.AddItem("HideTags", "Hide Tags");
//printDetailedOptions.DisplayedOptions.Add("PageContent");
printDetailedOptions.DisplayedOptions.Add("Tags");
printDetailedOptions.OptionChanged += printDetailedOptions_OptionChanged;
}
private void Printmgr_PrintTaskRequested(PrintManager sender, PrintTaskRequestedEventArgs args)
{
var deferral = args.Request.GetDeferral();
task = args.Request.CreatePrintTask("Print", OnPrintTaskSourceRequrested);
task.Completed += PrintTask_Completed;
PrintTaskOptionDetails printDetailedOptions = PrintTaskOptionDetails.GetFromPrintTaskOptions(task.Options);
IList <string> displayedOptions = printDetailedOptions.DisplayedOptions;
// Create a new list option
PrintCustomItemListOptionDetails pageFormat = printDetailedOptions.CreateItemListOption("PageContent", "Pictures");
pageFormat.AddItem("PicturesText", "Pictures and text");
pageFormat.AddItem("PicturesOnly", "Pictures only");
pageFormat.AddItem("TextOnly", "Text only");
// Add the custom option to the option list
displayedOptions.Add("PageContent");
printDetailedOptions.OptionChanged += printDetailedOptions_OptionChanged;
deferral.Complete();
}
/// <summary>
/// This is the event handler for PrintManager.PrintTaskRequested.
/// </summary>
/// <param name="sender">PrintManager</param>
/// <param name="e">PrintTaskRequestedEventArgs </param>
protected virtual void PrintTaskRequested(PrintManager sender, PrintTaskRequestedEventArgs e)
{
PrintTask printTask = null;
printTask = e.Request.CreatePrintTask(JobName, sourceRequestedArgs =>
{
var deferral = sourceRequestedArgs.GetDeferral();
PrintTaskOptionDetails printDetailedOptions = PrintTaskOptionDetails.GetFromPrintTaskOptions(printTask.Options);
IList <string> displayedOptions = printTask.Options.DisplayedOptions;
displayedOptions.Clear();
displayedOptions.Add(Windows.Graphics.Printing.StandardPrintTaskOptions.Copies);
displayedOptions.Add(Windows.Graphics.Printing.StandardPrintTaskOptions.Orientation);
displayedOptions.Add(Windows.Graphics.Printing.StandardPrintTaskOptions.PrintQuality);
displayedOptions.Add(Windows.Graphics.Printing.StandardPrintTaskOptions.MediaSize);
displayedOptions.Add(Windows.Graphics.Printing.StandardPrintTaskOptions.Collation);
displayedOptions.Add(Windows.Graphics.Printing.StandardPrintTaskOptions.Duplex);
// Preset the default value of the printer option
printTask.Options.MediaSize = PrintMediaSize.NorthAmericaLetter;
// Create a new list option
PrintCustomItemListOptionDetails margins = printDetailedOptions.CreateItemListOption("Margins", "Margins");
/*
* if (Forms9Patch.OsInfoService.Version >= new Version(10, 0, 17134, 0))
* {
* margins.AddItem("WideMargins", "Wide", "Each margin is 20% of the paper size", await wideMarginsIconTask);
* margins.AddItem("ModerateMargins", "Moderate", "Each margin is 10% of the paper size", await moderateMarginsIconTask);
* margins.AddItem("NarrowMargins", "Narrow", "Each margin is 5% of the paper size", await narrowMarginsIconTask);
* // App tells the user some more information about what the feature means.
* margins.Description = "The space between the content of your document and the edge of the paper";
* }
* else
*/
{
margins.AddItem("WideMargins", "Wide");
margins.AddItem("ModerateMargins", "Moderate");
margins.AddItem("NarrowMargins", "Narrow");
}
// The default is ModerateMargins
ApplicationContentMarginTop = 0.1;
ApplicationContentMarginLeft = 0.1;
margins.TrySetValue("ModerateMargins");
// Add the custom option to the option list
displayedOptions.Add("Margins");
printDetailedOptions.OptionChanged += OnPrintDetailOptionChanged;
// Print Task event handler is invoked when the print job is completed.
printTask.Completed += (s, args) =>
{
Xamarin.Essentials.MainThread.BeginInvokeOnMainThread(() =>
{
// Notify the user when the print operation fails.
if (args.Completion == PrintTaskCompletion.Failed)
{
using (Toast.Create("Printing Failed", null)) { }
}
//else if (args.Completion == PrintTaskCompletion.Canceled)
// using (Toast.Create("Printing Cancelled", null)) { }
else if (args.Completion == PrintTaskCompletion.Submitted)
{
using (Toast.Create("Printing ...", "Print job submitted to printer.", TimeSpan.FromSeconds(5))) { }
}
else if (args.Completion == PrintTaskCompletion.Abandoned)
{
using (Toast.Create("Printing Abandoned", null)) { }
}
});
UnregisterForPrinting();
};
sourceRequestedArgs.SetSource(printDocumentSource);
deferral.Complete();
});
}
/// <summary>
/// This is the event handler for PrintManager.PrintTaskRequested.
/// In order to ensure a good user experience, the system requires that the app handle
/// the PrintTaskRequested event within the time specified
/// by PrintTaskRequestedEventArgs->Request->Deadline.
/// Therefore, we use this handler to only create the print task.
/// The print settings customization can be done when the print document source is requested.
/// </summary>
/// <param name="sender">The print manager for which a print task request was made.</param>
/// <param name="e">The print taks request associated arguments.</param>
protected override void PrintTaskRequested(PrintManager sender, PrintTaskRequestedEventArgs e)
{
PrintTask printTask = null;
printTask = e.Request.CreatePrintTask(Tools.GetResourceString("Printer/PrintingTask"), sourceRequestedArgs =>
{
PrintTaskOptionDetails printDetailedOptions = PrintTaskOptionDetails.GetFromPrintTaskOptions(printTask.Options);
// Choose the printer options to be shown.
// The order in which the options are appended determines the order in which they appear in the UI.
printDetailedOptions.DisplayedOptions.Clear();
printDetailedOptions.DisplayedOptions.Add(StandardPrintTaskOptions.MediaSize);
printDetailedOptions.DisplayedOptions.Add(StandardPrintTaskOptions.Copies);
// Create a new list option.
PrintCustomItemListOptionDetails photoSize = printDetailedOptions.CreateItemListOption(
"photoSize", Tools.GetResourceString("Printer/SizeHeading"));
photoSize.AddItem("SizeFullPage", Tools.GetResourceString("Printer/SizeFullPage"));
photoSize.AddItem("Size4x6", Tools.GetResourceString("Printer/Size4x6"));
photoSize.AddItem("Size5x7", Tools.GetResourceString("Printer/Size5x7"));
photoSize.AddItem("Size8x10", Tools.GetResourceString("Printer/Size8x10"));
// Add the custom option to the option list.
printDetailedOptions.DisplayedOptions.Add("photoSize");
PrintCustomItemListOptionDetails scaling = printDetailedOptions.CreateItemListOption(
"scaling", Tools.GetResourceString("Printer/ScalingHeading"));
scaling.AddItem("ShrinkToFit", Tools.GetResourceString("Printer/Shrink"));
scaling.AddItem("Crop", Tools.GetResourceString("Printer/Crop"));
// Add the custom option to the option list.
printDetailedOptions.DisplayedOptions.Add("scaling");
// Set default orientation to landscape.
printTask.Options.Orientation = PrintOrientation.Landscape;
// Register for print task option changed notifications.
printDetailedOptions.OptionChanged += OnPrintDetailedOptionsOptionChanged;
// Register for print task Completed notification.
// Print Task event handler is invoked when the print job is completed.
printTask.Completed += async(s, args) =>
{
await ScenarioPage.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
ClearPageCollection();
// Reset image options to default values.
PhotoScale = Scaling.ShrinkToFit;
PhotoSizeSetting = PhotoSize.SizeFullPage;
// Reset the current page description.
CurrentPageDescription = null;
// Notify the user when the print operation fails.
if (args.Completion == PrintTaskCompletion.Failed)
{
ColoringPage.NotifyUserAsync(Tools.GetResourceString("Printer/ErrorMessage")).ContinueWithoutWaiting();
}
});
};
// Set the document source.
sourceRequestedArgs.SetSource(PrintDocumentSource);
});
}
/// <summary>
/// This is the event handler for PrintManager.PrintTaskRequested.
/// In order to ensure a good user experience, the system requires that the app handle the PrintTaskRequested event within the time specified by PrintTaskRequestedEventArgs.Request.Deadline.
/// Therefore, we use this handler to only create the print task.
/// The print settings customization can be done when the print document source is requested.
/// </summary>
/// <param name="sender">PrintManager</param>
/// <param name="e">PrintTaskRequestedEventArgs</param>
protected override void PrintTaskRequested(PrintManager sender, PrintTaskRequestedEventArgs e)
{
PrintTask printTask = null;
printTask = e.Request.CreatePrintTask("C# Printing SDK Sample", async sourceRequestedArgs =>
{
var deferral = sourceRequestedArgs.GetDeferral();
PrintTaskOptionDetails printDetailedOptions = PrintTaskOptionDetails.GetFromPrintTaskOptions(printTask.Options);
IList <string> displayedOptions = printDetailedOptions.DisplayedOptions;
// Choose the printer options to be shown.
// The order in which the options are appended determines the order in which they appear in the UI
displayedOptions.Clear();
displayedOptions.Add(Windows.Graphics.Printing.StandardPrintTaskOptions.Copies);
displayedOptions.Add(Windows.Graphics.Printing.StandardPrintTaskOptions.Orientation);
displayedOptions.Add(Windows.Graphics.Printing.StandardPrintTaskOptions.ColorMode);
// Create a new list option
PrintCustomItemListOptionDetails pageFormat = printDetailedOptions.CreateItemListOption("PageContent", "Pictures");
pageFormat.AddItem("PicturesText", "Pictures and text");
pageFormat.AddItem("PicturesOnly", "Pictures only");
pageFormat.AddItem("TextOnly", "Text only");
// Add the custom option to the option list
displayedOptions.Add("PageContent");
// Create a new toggle option "Show header".
PrintCustomToggleOptionDetails header = printDetailedOptions.CreateToggleOption("Header", "Show header");
// App tells the user some more information about what the feature means.
header.Description = "Display a header on the first page";
// Set the default value
header.TrySetValue(showHeader);
// Add the custom option to the option list
displayedOptions.Add("Header");
// Create a new list option
PrintCustomItemListOptionDetails margins = printDetailedOptions.CreateItemListOption("Margins", "Margins");
margins.AddItem("WideMargins", "Wide", "Each margin is 20% of the paper size", await wideMarginsIconTask);
margins.AddItem("ModerateMargins", "Moderate", "Each margin is 10% of the paper size", await moderateMarginsIconTask);
margins.AddItem("NarrowMargins", "Narrow", "Each margin is 5% of the paper size", await narrowMarginsIconTask);
// The default is ModerateMargins
ApplicationContentMarginTop = 0.1;
ApplicationContentMarginLeft = 0.1;
margins.TrySetValue("ModerateMargins");
// App tells the user some more information about what the feature means.
margins.Description = "The space between the content of your document and the edge of the paper";
// Add the custom option to the option list
displayedOptions.Add("Margins");
printDetailedOptions.OptionChanged += printDetailedOptions_OptionChanged;
// Print Task event handler is invoked when the print job is completed.
printTask.Completed += (s, args) =>
{
// Notify the user when the print operation fails.
if (args.Completion == PrintTaskCompletion.Failed)
{
MainPage.Current.NotifyUser("Failed to print.", NotifyType.ErrorMessage);
}
};
sourceRequestedArgs.SetSource(printDocumentSource);
deferral.Complete();
});
}
/// <summary>
/// This is the event handler for whenever the user makes changes to the options.
/// In this case, the options of interest are PageContent, Margins and Header.
/// </summary>
/// <param name="sender">PrintTaskOptionDetails</param>
/// <param name="args">PrintTaskOptionChangedEventArgs</param>
async void printDetailedOptions_OptionChanged(PrintTaskOptionDetails sender, PrintTaskOptionChangedEventArgs args)
{
bool invalidatePreview = false;
string optionId = args.OptionId as string;
if (string.IsNullOrEmpty(optionId))
{
return;
}
if (optionId == "PageContent")
{
invalidatePreview = true;
}
if (optionId == "Margins")
{
PrintCustomItemListOptionDetails marginsOption = (PrintCustomItemListOptionDetails)sender.Options["Margins"];
string marginsValue = marginsOption.Value.ToString();
switch (marginsValue)
{
case "WideMargins":
ApplicationContentMarginTop = 0.2;
ApplicationContentMarginLeft = 0.2;
break;
case "ModerateMargins":
ApplicationContentMarginTop = 0.1;
ApplicationContentMarginLeft = 0.1;
break;
case "NarrowMargins":
ApplicationContentMarginTop = 0.05;
ApplicationContentMarginLeft = 0.05;
break;
}
if (marginsValue == "NarrowMargins")
{
marginsOption.WarningText = "Narrow margins may not be supported by some printers";
}
else
{
marginsOption.WarningText = "";
}
invalidatePreview = true;
}
if (optionId == "Header")
{
PrintCustomToggleOptionDetails headerOption = (PrintCustomToggleOptionDetails)sender.Options["Header"];
showHeader = (bool)headerOption.Value;
invalidatePreview = true;
}
if (invalidatePreview)
{
await scenarioPage.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
printDocument.InvalidatePreview();
});
}
}