On 03/08/2009, at 4:07 PM, Deepa wrote:
I am developing an desktop app for which I want to implement a
behavior which is similar to 'New from clipboard' of Preview
application.
I tried using NSPasteboard:
// To get file copied to clipboard from Finder
NSArray *files = [[NSPasteboard generalPasteboard]
propertyListForType: NSFilenamesPboardType];
This returns array of files copied to the clipboard
// To get tiff image
NSData *pbData = [[NSPasteboard generalPasteboard] dataForType:
NSTIFFPboardType];
CIImage *pbImg = [CIImage imageWithData: pbData];
But this doesn't return null (tiff image data was copied to the
clipboard).
Am I doing something wrong here???
Can someone help me out to sove this problem. I also wanted to know
a method which copies and reads jpeg/gif/png image formats to/from
system clipboard.
It's not clear what the problem is.
Do you want image data or not? Preview's 'New from clipboard' is
looking for image data.
Normally when you read a pasteboard, you should pass it a list of
types using -availableTypeFromArray:, where the array you give it
indicates your *preferred order*. The type returned is the first
matching type found, so if you prefer image data over file data, you
list the image type first. It is up to the receiving application to
set the preferred order, not the sending application, which has no
idea who might make use of which copied data.
So if you want to read an image, you might prefer the order PDF, TIFF,
File... then deal appropriately with whichever one you get back.
--Graham
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