打印MonoMac示例

Question

有没有人知道如何实现打印(打印到打印机)的MonoMac示例？我还没能找到一个。

Answer 1

我不知道有哪一个，但来自苹果的概念文档是相关的，它们的样本片段应该直接移植到C#：https://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/Printing/Printing.html

Answer 2

我创建了一个类似如下的PrintDocument类：(你需要设置一个合适的大小并在drawrect中添加一些绘图)

public class PrintDocument:NSView   {

    NSPrintOperation MyPrinter = null;
    static IntPtr selCurrentContext = Selector.GetHandle ("currentContext");
    static IntPtr classNSGraphicsContext = Class.GetHandle ("NSGraphicsContext");

    public PrintDocument ()
    {
        MyPrinter=NSPrintOperation.FromView(this);
        this.SetFrameSize(new SizeF(600,800));
    }

    public void Print ()
    {
        MyPrinter.RunOperation()
    }
    public override void DrawRect (RectangleF dirtyRect)
    {
        var context = new NSGraphicsContext (Messaging.IntPtr_objc_msgSend (classNSGraphicsContext, selCurrentContext));
        //NSPrintOperation.CurrentOperation
    }

}