type declaration - dereferencing prob

hi!

this is my declaration:

Code:

 
enum tKoerperart { einfach, komplex };
enum tGeometrie { wuerfel, kugel, zylinder, kegel };
...
typedef struct koerper{
enum tKoerperart art;
...
}tKoerper;

typedef struct tKoerper *pKoerper;

typedef struct objekt {
...
pKoerper koerper;
...
}tObjekt;

typedef struct szenenGraph *pSzenenGraph;
struct szenenGraph
{
tObjekt objekt;
...
};

i'm trying this:

Code:

 
void
zeichneSzenenGraph(pSzenenGraph wurzelzeiger){
...
      if(wurzelzeiger->objekt.koerper!=(pKoerper)0){
        switch (wurzelzeiger->objekt.koerper->art) {
	      case einfach: ...; 
                      ...
	    }
}

,and compiler says this:
dereferencing pointer to incomplete type

this is the referred line
-->switch (wurzelzeiger->objekt.koerper->art)

why?!
any ideas?

thanks for answers
martin

Code:

typedef struct koerper{
enum tKoerperart art;
...
}tKoerper;

typedef struct tKoerper *pKoerper;  /* don't need struct here */

you don't need struct keyword there b/c it was already typedef'd.

great, this seemes to solve the problem.
thanks a lot.