Getting user data

Helper

On 08/12/2016 at 09:26, xxxxxxxx wrote:

User Information:
Cinema 4D Version:   16
Platform:   Windows ;
Language(s) :     C++ ;

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Ok, I am lost on how to get the userdata of an object.
I am trying to get userdata # 11 (float) and userdata #30(gradient).
The float seems to work, but when I try to do the same for the gradient, it fails.

The compiler tells me 'udEntry': redefinition; multiple initialization.

Here is the code.

Int32 gizmo;
GeData d;
  
BaseObject* c4domeObj = GetActiveDocument()->SearchObject("obj with userdata");
if (!c4domeObj) return FALSE;
DynamicDescription *dd = obj->GetDynamicDescription();
if(!dd) return FALSE; 
  
  
gizmo = 11;			//brightness
DescID udEntry(DescLevel(ID_USERDATA, DTYPE_SUBCONTAINER, 0), DescLevel(gizmo));
obj->GetParameter(udEntry, d, DESCFLAGS_GET_0);
GePrint("Brightness: " + String::FloatToString(d.GetFloat()));
  
//get the gradient custom data
gizmo = 30;			//gradient
DescID udEntry(DescLevel(ID_USERDATA, DTYPE_SUBCONTAINER, 0), DescLevel(gizmo));
obj->GetParameter(udEntry, d, DESCFLAGS_GET_0);
Gradient* gd = (Gradient* )d.GetCustomDataType(CUSTOMDATATYPE_GRADIENT);
  
Int32 kcnt = gd->GetKnotCount();

It feels, I do not completely understand what is going on.

Is there not a simple routine to readthe user data for a specific number?

-Pim

Helper

On 09/12/2016 at 05:09, xxxxxxxx wrote:

I solved it by looking for the name instead of the id using BrowseGetNext.

-Pim

Helper

On 09/12/2016 at 05:15, xxxxxxxx wrote:

Hi Pim,

the issue has nothing to do with userdata. It's actually as the compiler says, you defined the variable udEntry twice.