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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,类似于您可以在此处找到的演示代码:
https://github.com/mono/gtk-sharp/blob/master/sample/GtkDemo/DemoPrinting.cs
文本可以正确打印,但是我希望页面输出的纸张尺寸不同。
如何以编程方式设置纸张尺寸?
PrintOperation print = new PrintOperation();
print.BeginPrint += new BeginPrintHandler(OnBeginPrint);
print.DrawPage += new DrawPageHandler(OnDrawPage);
print.EndPrint += new EndPrintHandler(OnEndPrint);
print.Run(PrintOperationAction.Print, null);
编辑我发现, PrintOperation
类有两个成员,分别称为DefaultPageSetup
和PrintSettings
,它们包含一个PaperSize,但是这些对象在创建后为null( new PrintOperation()
)。 并且在OnBeginPrint
上已经设置了这些值。
我终于找到了如何设置自定义纸张尺寸的方法! 您必须设置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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