How do I make a thumbnail view form custom view(NSView)?

Question

How do I make a thumbnail view (It\'s not image) form a custom view(NSView)?

If the custom NSView\'s content changed that thumbnail view will be changed.

It\

Answer 1

I suggest you do some more Googling next time, and tell us what you have tried, but I'll answer anyways:

You may want to use NSView's -(void)cacheDisplayInRect:toBitmapImageRep: to create an NSImage which contains the thumbnail. The following is what I use in an app of mine:

- (NSImage *)snapshotForRect:(NSRect)destinationRect {
    NSView *view = ... // view you want thumbnail of
    NSBitmapImageRep *imageRep = [view bitmapImageRepForCachingDisplayInRect:destinationRect];
    [view cacheDisplayInRect:destinationRect toBitmapImageRep:imageRep];
    NSImage *renderedImage = [[NSImage alloc] initWithSize:[imageRep
                                                            size]];
    [renderedImage addRepresentation:imageRep];
    return [renderedImage autorelease];
}

Or use the variety of other methods available.

How do I take a "screenshot" of an NSView?

Google