Fixed bug in call to DrawTextEx.

This bug upset me.

While the bug was in part because of Get_Element_From_Vector returning a pointer
for an element that didn't exist, it was also in part because DrawTextEx was reading
a string whose length was specified to be zero (according to it's parameter 'nCount').
This length specification should've been caught by DrawTextEx before it read anything,
but it wasn't.
Fixed vector dependency.