Is XXView.h added with #include "XXDoc.h"?

zhanhuitw

Compile error: ChanoiDoc * GetDocument (); line

error C2143: syntax error: missing ';' before '*'
error C2501: 'CHanoiDoc': missing storage-class or type specifiers
error C2501: 'GetDocument': missing storage-class or type specifiers

Only by adding #include "HanoiDoc.h" to compile, it can be used in other projects. So I think it is wrong elsewhere, but I don't know where it is wrong, I hope to give pointers.

深蓝旅者

correct.
If you do not want to add header files, you can change to
class CHanoiDoc * GetDocument ();

zippodiy

You visited the members of the view in MainFrame.

96631ssy

Add a sentence at the beginning of the file
class CHanoiDoc;
See if it works

zhanhuitw

Reply tozippodiy
    Yes, I later discovered that this problem occurs as long as #include "XXView.h" in other classes.
I find it strange that if other classes are used in header files for general classes, the corresponding header files must be included in their header files. If they are included in their cpp, the compiler will not "recognize" them. Why can the View class