classes and window procedures

i have some class based code that is closely based on Ken Fitlike's code from his website. The thing is, Ken's class for a standard application window calls a global window procedure which then calls the member function window procedure that is part of that class. The way i want to do things, it would be better to be able to specify that the class calls the member function window proc directly. eg:

Code:

CppAppWnd::CppWndProc(...)
{
  ...
}

CppAppWnd::Create()
{
WNDCLASSEX wcx;
wcx.lpfnWndProc= (WNDPROC)CppWndProc;
}

but the compiler wont let me. it says:

[quote]
'type cast' : cannot convert from '' to 'long (__stdcall *)(struct HWND__ *,unsigned int,unsigned int,long)'
[/code]

i really want to get this to work, how do i do it?

it has to be static:

class CppAppWnd
{
//your stuff
static LRESULT CALLBACK CppWndProc(...);
//more of your stuff
};


static LRESULT CALLBACK CppAppWnd::CppWndProc(...)
{
...
}

actually, you only put static in the class declaration, not when you declare the function. eg:

Code:

class CppAppWnd
{
      static LRESULT CALLBACK CppAppWndProc(...);
}

LRESULT CALLBACK CppAppWndProc(...)
{

}

thanks for the help, i was scared it would be possible.

oh yeah. same result anyway

>>Ken's class for a standard application window calls a global window procedure<<

For simplicity, but most of that stuff is old and badly needs updating.

>>i was scared it would be possible.<<



There's been some discussion about and around this in the past that may be of some interest to you:

http://www.cprogramming.com/cboard/s...ght=wmnccreate

http://www.cprogramming.com/cboard/s...ght=wmnccreate

http://www.cprogramming.com/cboard/s...ght=wmnccreate

http://www.cprogramming.com/cboard/s...ght=wmnccreate

http://www.cprogramming.com/cboard/s...ght=wmnccreate

Not all are entirely relevant and there's some repetition of detail but many of those threads provide example code and links to other sites that may be of interest.