CreateElement
CreateElement
Creates a new element of the list.
CObject* CreateElement()Return Value
Pointer to the newly created element - successful, NULL - cannot create an element.
Note
Method CreateElement () in the CList class always returns NULL and does not perform any actions. If necessary, method CreateElement () should be implemented in a derived class.
Example:
//--- example for CList::CreateElement(int)
#include <Arrays\List.mqh>
//---
void OnStart()
{
int size=100;
CList *list=new CList;
//---
if(list==NULL)
{
printf("Object create error");
return;
}
//--- fill list
for(int i=0;i<size;i++)
{
CObject *object=list.CreateElement();
if(object==NULL)
{
printf("Element create error");
delete list;
return;
}
list.Add(object);
}
//--- use list
//--- . . .
//--- delete list
delete list;
}Last updated on