可可.创建NSTextView，向其中添加NSString并打印 [英] Cocoa. Create NSTextView, add an NSString to it and print

问题描述

我有一个带有用于打印收据的按钮的窗口.我需要做的是创建一个简单的NSTextView，向其中添加一个NSString(至少类似于"Hello World"之类的东西)并打印它而不在窗口上显示NSTextView.

I have a window with a button for printing receipts. What I need to do is to create a simple NSTextView, add an NSString to it (at least something like "Hello World") and print it without displaying NSTextView on the window.

这是我目前拥有的:

    NSTextView *textView = [[NSTextView alloc] init];

    NSString *text = @"testing";

    [textView setEditable:true];
    NSRange range = NSMakeRange( 0, [[textView string] length]);
    [textView setSelectedRange:range];
    [[[textView textStorage] mutableString] appendString:text];

    NSPrintOperation *printOperation;

    printOperation = [NSPrintOperation printOperationWithView:textView];


    [printOperation runOperation];

当我运行它时，我看到打印对话框，但是预览为空. 当我更改printOperationWithView:textView];从textView到我窗口上的现有视图之一，它可以正常打印.

when I run it, I see printing dialog, but preview is empty. When I change printOperationWithView:textView]; from textView to one of the existing views on my window, it prints ok.

最主要的是..我不想在单击打印"按钮后显示视图.理想情况下，我想打印文本，而不是视图.

The main thing is.. I don't want to display the view after I click Print button. Ideally I would like to print the text, not the view.

推荐答案

您是否尝试过将-initWithFrame与非零矩形一起使用?

Have you tried using -initWithFrame with a nonzero rect?

NSTextView *textview = [[NSTextView alloc] initWithFrame:NSMakeRect(0, 0, 468, 648);

(468 x 648使其适合具有1英寸页边距的A4纸.)

(468 x 648 would make it fit an A4 sheet with 1-inch margins.)

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