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06-Jun-2018 19:14

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If the function fails, the return value is a nonzero error code that is defined in Win Error.h.

In C , use the Format Message function with the FORMAT_MESSAGE_FROM_SYSTEM flag to get a generic description of the error.

As I know I’ll be doing this again, I made a category of NSString that provides this.

The rest was simple: The NSString Size category is available here: Cocoa Categories.

I needed to get the rectangle that my string would fill when drawn.

A short Google search led me here: SO: NSString size With Attributes: Content Rect.

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to fire for events that are not conventionally observable.

In Cocoa, user interface cells that display text but have an arbitrary object as their content can use formatters for both input and output.