I've got the error: error LNK2001: unresolved external symbol "public: virtual struct CRuntimeClass * __thiscall CStudent::GetRuntimeClass(void)const " (?GetRuntimeClass@CStudent@@UBEPAUCRuntimeClass@@XZ) Please help!

thanks all! :)

I want using VC++ to read/write an object of MyClass from/to a file. I've write CFile myFile; ... myFile.Write((char*)&myObject, sizeof(myObject)); So in my file there is a stranger string :( How can I do properly? I'm a beginning of programing. Please help me! Best regard!

I use Visual C++ to program. Can I delete one character in one file without use a tempFile? And How? For example, - my file contains: "Life is so short"; - the file pointer is at the beginning of file - after I open file for reading & writing, the file contains "ife s o hort"; thanks do not understand everything