c - what is a declaration(?) like "GLenum GlewInitResult = glewInit();" doing? -

I hope you do not mind readers to answer my simple request. GLNM gluinitorsil = Gravinut ();

I have to make sure that I understand this right.

Is the GLenum GlewInitResult setting the same?

And is GlewInitResult being assigned only to return value of glewInit ()?

Or to ask, whats

  difference between GLenum GlewInitResult = glewInit ();   
 and  
  GLenum GlewInitResult = glewInit; // This statement gives me a type of mismatch error   
 What is the bracket doing in an announcement (?)?  
 Sorry if this is a minor question, I just want to make sure that I understand / understand the overall concept of OpenGL programming with freight.  
  
 
 
 declares it as a variable called GlewInitResult  and calls the function  GlewInit specifies  in the variable.  
 You can see it as two steps:  
 
 Announce the variable  
 Assign the function call to the variable   
 Just like  
  GLenum GlewInitResult; GlewInitResult = glewInit ();   
 This is  too  basic stuff, and should be in the first chapter of any C (or C ++) book. There is no  anything  to do this with the OpenGL or GLEW library.  
 For your second question, stores the first  call  function  glewInit  and the results given in the variable. Attempts to store the  pointer function  in the second variable, and as the variable is declared incorrectly, you get an error.