e:\lsyprogram\11\11.h(24) : error C2504: 'CBCGPWorkspace' : base class undefined e:\lsyprogram\11\11dlg.h(15) : error C2504: 'CBCGPDialog' : base class undefined E:\LsyProgram\11\11.cpp(62) : error C2440: '=' : cannot convert from 'class CMy11Dlg *' to 'class CWnd *' Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast E:\LsyProgram\11\11.cpp(63) : error C2039: 'DoModal' : is not a member of 'CMy11Dlg' e:\lsyprogram\11\11dlg.h(14) : see declaration of 'CMy11Dlg'
e:\lsyprogram\11\11dlg.h(15) : error C2504: 'CBCGPDialog' : base class undefined
E:\LsyProgram\11\11.cpp(62) : error C2440: '=' : cannot convert from 'class CMy11Dlg *' to 'class CWnd *'
Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
E:\LsyProgram\11\11.cpp(63) : error C2039: 'DoModal' : is not a member of 'CMy11Dlg'
e:\lsyprogram\11\11dlg.h(14) : see declaration of 'CMy11Dlg'