Assigning Text and Vairable to Text Field

[S_M_A]

Maybe I don't understand your question but why not use

sprintf(cTotal, "Your Wage is %.2f", Total);
SetWindowText(GetDlgItem(hwnd, IDC_TOTAL), cTotal);

Since this requires that you're responsible for making sure that cTotal can hold enough characters you might prefer switching to use STL instead.

#include <sstream>
stringstream str;
str << "Your Wage is " << Total;
SetWindowText(GetDlgItem(hwnd, IDC_TOTAL), str.str().c_str());