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[英]how to set size for the indicator of a Gtk# checkbutton widget?
[英]GTK# - printing: How to set the paper size
我正在用GTK#打印一些文本,類似於您可以在此處找到的演示代碼:
https://github.com/mono/gtk-sharp/blob/master/sample/GtkDemo/DemoPrinting.cs
文本可以正確打印,但是我希望頁面輸出的紙張尺寸不同。
如何以編程方式設置紙張尺寸?
PrintOperation print = new PrintOperation();
print.BeginPrint += new BeginPrintHandler(OnBeginPrint);
print.DrawPage += new DrawPageHandler(OnDrawPage);
print.EndPrint += new EndPrintHandler(OnEndPrint);
print.Run(PrintOperationAction.Print, null);
編輯我發現, PrintOperation
類有兩個成員,分別稱為DefaultPageSetup
和PrintSettings
,它們包含一個PaperSize,但是這些對象在創建后為null( new PrintOperation()
)。 並且在OnBeginPrint
上已經設置了這些值。
我終於找到了如何設置自定義紙張尺寸的方法! 您必須設置PrintSettings
的DefaultPageSetup
和PrintOperation
:
PrintSettings settings = new PrintSettings();
settings.PaperSize = new PaperSize("XXX", "XXX", 500, 5000);
PageSetup setup = new PageSetup();
setup.SetBottomMargin(0, Unit.Pixel);
setup.SetTopMargin(0, Unit.Pixel);
setup.SetLeftMargin(0, Unit.Pixel);
setup.SetRightMargin(0, Unit.Pixel);
setup.PaperSize = settings.PaperSize;
PrintOperation print = new PrintOperation();
print.DefaultPageSetup = setup;
print.PrintSettings = settings;
print.BeginPrint += new BeginPrintHandler(OnBeginPrint);
print.DrawPage += new DrawPageHandler(OnDrawPage);
print.EndPrint += new EndPrintHandler(OnEndPrint);
print.Run(PrintOperationAction.Print, null);
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