Unreal Engine 4 Scripting with C++ Cookbook

UE4 – making an FString from FStrings and other variables

When coding in UE4, you often want to construct a string from variables. This is pretty easy using the FString::Printf or FString::Format functions.

Getting ready

For this, you should have an existing project into which you can enter some UE4 C++ code. Putting variables into a string is possible via printing. It may be counterintuitive to print into a string, but you can't just concatenate variables together, and hope that they will automatically convert to string, as in some languages such as JavaScript.

How to do it…

1. Using FString::Printf():
   1. Consider the variables you'd like printed into your string.
   2. Open and take a look at a reference page of the printf format specifiers, such as http://en.cppreference.com/w/cpp/io/c/fprintf ...