copying

I was just reading a page on events on MSDN, and I came across a snippet of example code that is puzzling me. The code in question is this: // Make a temporary copy of the event to avoid possibility of // a race condition if the last subscriber unsubscribes // immediately after the null check and before the event is raised. EventHandler<CustomEventArgs> handler = RaiseCustomEvent; I understand the intentions of the code, but I fail to see how that particular line is making a copy of anything. All it is doing is copying the reference ; it's not actually making a deep copy of the delegate

I have two folders (say "A","B") which are in a folder (say "Input"). I want to copy "A" and "B" to another folder (say "Output"). Can I do this in R? Huang Chen Copying your current directory files to their new directories currentfiles is a list of files you want to copy newlocation is the directory you're copying to If you aren't listing your current files, you'll need to loop through you're working directory file.copy(from=currentfiles, to=newlocation, overwrite = TRUE, recursive = FALSE, copy.mode = TRUE) This is for deleting your old files file.remove(currentfiles) I am late. This is my

I have a method in my application which retrieves the last saved image in my DCIM/Camera folder and copies it to another location on the SD card. I've just tested it on another phone and found that it defaults saving to DCIM/100MEDIA . How am I able to get this path? I ended up writing some code which looped through all the folders in the DCIM folder and retrieved the path of the lastModified() folder. Richard Logwood Looks like it is manufacturer dependent. In addition to using methods described in book, it seems also allowing the user to choose/override the default you "discover" would be an

I want to create two users on my MySQL test database, One with read-only access to tables relevant to generating reports, etc, the other with read-write access to the same tables. This is for testing a subsystem that normally connects with a read-only user but switches to a read-write user for certain tasks. I've created the read-write user with the correct privileges, and now I need a read-only version of the same user. I'd rather not create the read-only version from scratch as I had to set a lot of privileges, which was rather laborious. Is there a way I can create a new user based on an