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How do you add an action to a button programmatically in xcode

I know how to add an IBAction to a button by dragging from the interface builder, but I want to add the action programmatically to save time and to avoid switching back and forth constantly. The solution is probably really simple, but I just can't seem to find any answers when I search it. Thank you...
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Using OpenGl with C#? [closed]

... OpenTK is an improvement over the Tao API, as it uses idiomatic C# style with overloading, strongly-typed enums, exceptions, and standard .NET types: GL.Begin(BeginMode.Points); GL.Color3(Color.Yellow); GL.Vertex3(Vector3.Up); as opposed to Tao which merely mirrors the C API: Gl.glBegin(Gl.GL...
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UIImageView aspect fit and center

I have an image view, declared programmatically, and I am setting its image, also programmatically. 10 Answers ...
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how to get android screen size programmatically, once and for all?

How can I find out my screen size programmatically, in the units used by touch events and View measurement/layout? In other words, I want the coordinates of the bottom-right corner of the screen, in the coordinate system used by touch events' getRawX()/getRawY() and View.getLocationOnScreen() . ...
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Rotating x axis labels in R for barplot

I am trying to get the x axis labels to be rotated 45 degrees on a barplot with no luck. This is the code I have below: 8 A...
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Removing nan values from an array

I want to figure out how to remove nan values from my array. My array looks something like this: 11 Answers ...
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WPF chart controls [closed]

I am looking for a very simple WPF chart which should have a 2D graph and should have pan and zoom facilities . 12 Answer...
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What are deferred objects?

jQuery 1.5 adds "Deferred Objects". What are they, and what exactly do they do? 4 Answers ...
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Why can't R's ifelse statements return vectors?

I've found R's ifelse statements to be pretty handy from time to time. For example: 9 Answers ...
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Trigger a keypress/keydown/keyup event in JS/jQuery?

What is the best way to simulate a user entering text in a text input box in JS and/or jQuery? 9 Answers ...