将NSImage *转换为CGImageRef？ [英] Turning an NSImage* into a CGImageRef?

问题描述

有没有一个简单的方法来做这个工作在10.5？

Is there an easy way to do this that works in 10.5?

在10.6中，我可以使用nsImage CGImageForProposedRect：NULL上下文：NULL hints：NULL

In 10.6 I can use nsImage CGImageForProposedRect: NULL context: NULL hints: NULL

使用1b黑白图像（像Group 4 TIFF），我可以使用位图，但cgbitmaps似乎不喜欢那个设置...有一个一般的方法这样做吗？

If I'm not using 1b black and white images (Like Group 4 TIFF), I can use bitmaps, but cgbitmaps seem to not like that setup... Is there a general way of doing this?

我需要这样做，因为我有一个IKImageView似乎只想添加CGImages，但我所有的是NSImages。目前，我使用一个私有的setImage：（NSImage *）方法，我真的真的，而不是使用...

I need to do this because I have an IKImageView that seems to only want to add CGImages, but all I've got are NSImages. Currently, I'm using a private setImage:(NSImage*) method that I'd REALLY REALLY rather not be using...

推荐答案

在此网页上找到以下解决方案：

Found the following solution on this page:

NSImage* someImage;
// create the image somehow, load from file, draw into it...
CGImageSourceRef source;

source = CGImageSourceCreateWithData((CFDataRef)[someImage TIFFRepresentation], NULL);
CGImageRef maskRef =  CGImageSourceCreateImageAtIndex(source, 0, NULL);

所有的方法似乎都是10.4+，所以你应该很好。

All the methods seem to be 10.4+ so you should be fine.

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