make sure you are using .c extension for your script file and make sure you ve written capitals as i ve written.

ENTITY* must be all capital letters.


for defiing bitmaps:

for lite-c:
//bitmaps defined this way.
BMAP* sbutton1 = "bitmaps//startknop2.pcx";
BMAP* sbutton2 = "bitmaps//startknop.pcx";
BMAP* sbutton3 = "bitmaps//startknop3.pcx";


button (50, 250,sbutton1,sbutton2,sbutton3, start_simulatie, NULL, NULL);