Enumeration

NSImageCacheMode

Constants that specify the caching policy on a per-image basis.

Declaration

typedef enum NSImageCacheMode : NSUInteger {
    ...
} NSImageCacheMode;

Set the caching policy using the cacheMode property.

The following table specifies the default caching policy for the various types of image representation.

Image Rep Class	Default caching policy
`NSBitmapImageRep`	`NSImageCacheBySize`. Cache if bitmap is 32-bits in 16-bit world or greater than 72 dpi.
`NSPICTImageRep`	`NSImageCacheBySize`. Same reasoning as `NSBitmapImageRep` in the event the PICT contains a bitmap.
`NSPDFImageRep`	`NSImageCacheAlways`
`NSCIImageRep`	`NSImageCacheBySize`. Cache if the bitmap depth does not match the screen depth or the resolution is greater than 72 dpi.
`NSEPSImageRep`	`NSImageCacheAlways`
`NSCustomImageRep`	`NSImageCacheAlways`

Caching is unspecified.

Always generate a cache when drawing.

Cache if the cache size is smaller than the original data.

Never cache; always draw direct.