dialog track { size -1 -1 104 100 title "Blah?" list 1,30 0 23 101,size } On 1:DIALOG:track:INIT:1:{ dll mdx.dll SetMircVersion $version dll mdx.dll MarkDialog $dname mdx SetControlMDX $dname 1 TrackBar vertical autoticks both > bars.mdx dll mdx.dll SetBorderStyle $dname 1 windowedge did -i $dname 1 1 params $calc(65535 - $vol(master)) 0 65535 1000 10000 65535 0 18 did -i $dname 1 1 tickfreq 1 } On 1:DIALOG:track:SCLICK:1:{ tokenize 32 $did($dname,1,1) /vol -v $calc(65535 - $1) }