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Questions tagged [nsimage]

on Mac OS X, an NSImage object is a high-level class for manipulating image data

681 questions
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App reply not called when passing non-null parameter from NSXPCConnection

I'm using XPC to seperate a project into two projects - a main project, built for os x @ 64-bit, and an XPC service built for os x @ 32-bit, as it is using a library that is not available for 32 bit and cannot be replaced. The two communicate using…
Niv
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Drawing text onto an NSImage in a loop - but how do I clear the cache?

I have an NSTimer calling a method once a second, which checks a simple integer value, called 'total'. This value is then drawn on top of an NSImage and displayed on the screen. NSImage *totalIcon = [NSImage imageNamed:@"round_red"]; [totalIcon…
Gavin Smith
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Get NSImage of generic lcd icon

I'm trying to create an NSImage of the generic lcd icon found in /System/Library/CoreServices/CoreTypes.bundle/Contents/Resources/public.generic-lcd.icns. Currently, I load this icon using the following code: NSImage *icon = [[NSImage alloc]…
Frog
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NSButton setImage not working

I am trying to change the image of my nsbutton for my application. I have searched and found a couple of ways to do so but none of them are working for me at the moment. I have looked at the following solutions : How to set NSButton background…
Tanzeel
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NSImage is not displayed on some computer

Did anyone get the same problem? I load a png image using NSImage initWithCotentsFile and display it in a view using drawInRect:fromRect:operation:fraction:. In a very rare case, some of users using mac os x 10.9.2 complain the image is not…
ken
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Error saving NSImage as NSData

I am using the following code to save a frame of a movie to my desktop: NSCIImageRep *imageRep = [NSCIImageRep imageRepWithCIImage:[CIImage imageWithCVImageBuffer:imageBuffer]]; NSImage *image = [[[NSImage alloc] initWithSize:[imageRep size]]…
Ricky
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NSImageView setImage won't set image

I am trying to set image for an NSImageView instance object in a Cocoa project. My code looks like this: itemTableCellView * xx = [tableView makeViewWithIdentifier:@"MainCell" owner:self]; xx.label.stringValue = [tempCi simpleTxt]; xx.img…
Marci-man
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NSImage is always being scaled and looks bad

I want to create an NSImage of an NSScrollView object, so I can use the flat graphic for animation purposes. When I render my scrollview object into a graphic and add it back to my window, it works but looks really bad like it's been scaled to 99%…
beely
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Calculate position of NSScrollView relative to main image

Assume I load an NSImage of dimensions 2000x2000 and display only a portion of the picture inside an NSScrollView with frame size 500x300. How can I calculate the distance between the images 0,0 origin and the views 0,0 origin (so I can determine…
Bender
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Reduced image size in NSScrollView

I'm trying to load an image into my NSImageView/NSScrollView and display it at actual size, but the image mysteriously ends up getting displayed at about half-size. I thought at first it might be being reduced to fit into some kind of constraints of…
Bender
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How can I remove remove one color channel from an NSimage?

As the title says: how can I remove remove one color channel from an NSimage? Basically I want to achieve a result equivalent to opening an image in Photoshop and deleting all the info in the red channel. I'm guessing there's maybe a way to do this…
dmid
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CorePlot chart not showing up in PDF made with -dataWithPDFInsideRect

I'm generating a PDF from a view using -dataWithPDFInsideRect:. Within the view is a CPTXYGraph which displays wonderfully in a Window but doesn't show up in the PDF at all. I also tried putting an NSImageView into my view, then generating an…
Kenny Wyland
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load a nsimage file from local path using sandbox

I'm trying to load a PNG image from a local volume. The user chooses the file using a normal NSOpenPanel. After enabling sandbox the init method to load a local file return nil. I'm also trying to use NSURL but i can't figure out how to use for…
user2970742
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Animation of NSImage gets lost after archiving it with NSKeyedArchiver

Following situation: I have an instance of my NSObject sublcassed object. One of it's properties is a NSImage. After instanciating the object I convert it with NSKeyedArchiver to data, send it over the network, unarchive it with NSKeyedUnarchiver…
papr
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NSImage drawAtPoint lost quality

I have a monochrome picture,When i draw this picture to another picture, it become a gray picture. Here is my code: Save a monochrome picture: NSImage *copyImage = [image copy]; // Copy from a monochrome picture NSBitmapImageRep…
Garpery
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