ProvideX V8.20 > Language Reference > 6. System Parameters
685
'SW'= System Parameter
  Scroll Wheel
Description
Sets default scroll wheel behaviour.
0-
Scroll wheel support (all events go to parent window)
1-
Scroll only if the control has focus (mouse can hover on or off control)
2-
Scroll only if the control has focus (mouse must be hovered over control)
3-
If control does not have focus, then scroll when mouse hovers over this
control (otherwise, follow #1)
4 - If control does not have focus, then scroll when mouse hovers over this
control (otherwise, follow #2)
Default
'SW'=1
'SZ'= System Parameter
 Maximum Memory Size for Session
Description
Defines the maximum memory (in kilobytes) that the session is allowed to use. This
value can also be changed via the START Directive, p.326.
Default
'SZ'=32000. For older Windows versions of ProvideX, this value is 1024 or the
maximum memory available, whichever is less. For older UNIX/Linux versions, this
value is 512.
Note: Under Windows, the maximum setting is 32000. Under UNIX / Linux the
limit has been increased from 512 to 32000. If the 'IZ' parameter is set, the 'SZ' parameter is
ignored; see 'IZ'=, p.668.
'TA'= System Parameter
         Turbo Mode Acknowledgement
Description
Defines the amount of data (in Kilobytes) that will be sent to WindX before forcing turbo
mode acknowledgement. This has been shown to help slower speed connections; e.g.,
when printing across WANs.
Default
'TA'=0. No forced acknowledgement.
'TB' System Parameter
  Toolbar Size
Description
Calculates toolbar width/coordinates based on the number of columns in the window.
The toolbar size will be the actual number of columns found in the window, which is
equal to the value returned by MXC(0).