c++ - Access violation reading location using WndClass -

i have 1 problem, using code:

bool registerapp(hinstance hinst) {     wndclass wc;      wc.style         = cs_hredraw | cs_vredraw;     wc.lpfnwndproc   = wndproc;     wc.cbclsextra    = 0;     wc.cbwndextra    = 0;     wc.hinstance     = hinst;     wc.hicon         = loadicon(null, idi_application);     wc.hcursor        = loadcursor(null, idc_arrow);     wc.hbrbackground = (hbrush)getstockobject(gray_brush);     wc.lpszclassname = szclassname;     //      //     return registerclass(&wc); } 

when i'm trying using &wc, have error:

unhandled exception @ 0x763adf81 in lab3.exe: 0xc0000005: access violation reading location 0xcccccccc. 

please me, need this?

you have not initialized of data members of wc.

refer http://msdn.microsoft.com/en-us/library/windows/desktop/ms633576(v=vs.85).aspx