[Closed] C++ Pick Button

Hi, I am trying to create a Pick Button. I have used the samples to get a basic verson of the code, although Max seems to crash as soon as I click the button. So I believe there something wrong with my SetPickMode … Anyone know ? All code is below:

//-----------------------------------------------------------------------------------------------------------------------------------
     // Spline Pick
     //-----------------------------------------------------------------------------------------------------------------------------------
     
     BOOL SplinePickMode::Filter(INode *node){
     	
     
     	ExecuteMAXScriptScript(_T("print \"Filter\""), 0, 0);
     	if(node){
     	ExecuteMAXScriptScript(_T("print \"Got Node\""), 0, 0);
     	return TRUE;
     	}
     
     	return FALSE;
     }
     
     BOOL SplinePickMode::HitTest(IObjParam *iop, HWND hWnd, ViewExp * /*vpt*/, IPoint2 m,int flags) {
     
     	ExecuteMAXScriptScript(_T("print \"HitTest\""), 0, 0);
     	return iop->PickNode(hWnd,m,this) ? TRUE : FALSE;
     }
     
     BOOL SplinePickMode::Pick(IObjParam *iop, ViewExp *vpt){
     		if ( ! vpt || ! vpt->IsAlive() )
     	{
     		// why are we here
     		DbgAssert(!_T("Invalid viewport!"));
     		return FALSE;
     	}
     	ExecuteMAXScriptScript(_T("print \"PickingNode\""), 0, 0);
     	INode *node = vpt->GetClosestHit();
     	if (!Filter(node)) return FALSE;
     	ExecuteMAXScriptScript(_T("print \"Return\""), 0, 0);
     	return FALSE;
     }
     
     void SplinePickMode::EnterMode(IObjParam *iop) {
     	ExecuteMAXScriptScript(_T("print \"Enter\""), 0, 0);
     }
     
     void SplinePickMode::ExitMode(IObjParam *iop) {
     	ExecuteMAXScriptScript(_T("print \"End\""), 0, 0);
     }
     
     static SplinePickMode PickSpline;
     
     class RenderDlgProc : public ParamMap2UserDlgProc 
     {
     	public:			
     		INT_PTR DlgProc(TimeValue t, IParamMap2 *map, HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
     		{
     			Render_Object *p = (Render_Object*)map->GetParamBlock()->GetOwner();
     			switch (msg) 
     			{
     				case WM_INITDIALOG:
     					{
     						theRender.ip = GetCOREInterface();
     					
     					break;
     				}
     				case WM_COMMAND:
     					switch( LOWORD(wParam) )
     						{
     					case IDC_PICKSPLINE:
     						ExecuteMAXScriptScript(_T("print \"PickingSpline\""), 0, 0);
     						theRender.ip->SetPickMode(&PickSpline);
     						break;
     						}
     					break;
     				default:
     					return FALSE;
     			}
     			return TRUE;
     		}
     
     		void DeleteThis() {};
     };

Sorry for all the Prints, I just place them around so where my code is crashing ^^ Thanks

Edit *: Never Mind, I got it to work. I have redone the code above with the new working code incase anyone wants it. Thanks