Calling a number from an edit in a uicontrol in a separate function

I am trying to pull a number out of the string in the postion below and input into a second function to be used to solve an equation

this is what I currently have

function[] = FinalProject()
clc
global vendor;
vendor.W1 = 0;
vendor.LengthWDisplay = uicontrol('style','text','units','normalized',...
    'position', [.034 .80 .09 .095],'string','Input length W','horizontalalignment','right');

vendor.W1 = uicontrol('style','edit','units','normalized','position',...
    [.15 .80 .09 .05],'string','edit','horizontalalignment','right');

function [] = solve()
global vendor;
W1 = str2num(vendor.W1.string);

If i need to explain this more then I can

Answer 1

[Cris LaPierre]

It looks like you are trying to build an app programmatically. If you haven't already done so, I recommend looking at this example.

Without more context, I'd recommend you use app designer.