//CHelloWorldBasicAppView:raw(const TRect& aRect)
CWindowGc& gc = SystemGc();
and I have modify the mmp and add the header file, it is successful when compiling, and abortion when execute it,.
Using the debugger ,and it send the error " e32user-cbase, error code 90'"
I have read the most reference article on this issue,and it does not help. so I put it in the discuss board,and hope somaone help me! it has confused me for days.