On 30/05/2013 at 05:19, xxxxxxxx wrote:
User Information:
Cinema 4D Version: R13
Platform: Windows ;
Language(s) : C++ ; XPRESSO ;
---------
Hello,
I'm trying to make my custom data type and want to convert a general object (ID_GV_VALUE_TYPE_GENERAL_OBJECT) to the my type. I'm following the example of cinema4dsdk sample project, but I'm getting an AccessViolation crash in ConvertFromGv method.
The example in cinema4dsdk defines a magic structure GvObject and uses it to cast the src parameter of ConvertFromGv method. This is the code:
struct GvObject
{
BaseList2D* object;
LONG type;
};
virtual GvError ConvertFromGv(LONG type,const void *const src,LONG cpu_id,CustomDataType *dst)
{
iExampleDataType *d = (iExampleDataType* )dst;
switch (type)
{
...
case 400006000: // ID_GV_VALUE_TYPE_GENERAL_OBJECT
{
GvObject *s = &((GvObject* )src)[cpu_id];
if (s->object) d->sdata = s->object->GetName();
else d->sdata = "<<no object>>";
d->ldata = -1;
return GV_CALC_ERR_NONE;
}
}
...
}
It seems that this is not the right structure of the src void pointer.
Does anybody know what is the structure of the src pointer in case of ID_GV_VALUE_TYPE_GENERAL_OBJECT type (for Cinema4D R13 version)?
Thank you.