Declaration: RefreshParticleEditor: integer;
Refreshes the particle editor display. This routine should be called whenever a parameter of the particles shown in the particle editor (represented by the global variable PEData) is changed. If the particle editor is not open, this call has no effect (use ShowParticleEditor to open the particle editor).

The function returns a value of -1 if the particle editor is not open, otherwise a zero value is returned.