Important Notice
The pages on this site contain documentation for very old MS-DOS software,
purely for historical purposes.
If you're looking for up-to-date documentation, particularly for programming,
you should not rely on the information found here, as it will be woefully
out of date.
System values (1.2)
◄Up► ◄Next► ◄Previous►
────────────────────────────────────────────────────────────────────────────
Value Meaning
────────────────────────────────────────────────────────────────────────────
SV_ALARM Specifies whether a call to the WinAlarm function
generates a sound. A value of TRUE means a sound is
generated.
SV_ALTMNEMONIC Specifies whether the ALT key is allowed as a
mnemonic.
SV_CMOUSEBUTTONS Specifies the number of mouse buttons: 1, 2, or 3.
SV_CSYSVALUES Specifies the number of system values.
SV_CTIMERS Specifies the number of available timers.
SV_CURSORLEVEL Specifies the cursor display count. The cursor is
visible only when the display count is zero.
SV_CURSORRATE Specifies the rate (in milliseconds) at which the
cursor blinks. The blink rate determines the time
that the cursor remains visible or invisible. Twice
this value is the time the cursor takes to cycle
from visibility to invisibility and back.
SV_CXBORDER Specifies the number of pixels along the x-axis of a
window border.
SV_CXBYTEALIGN Specifies a horizontal alignment that is more
efficient for the device driver.
SV_CXDBLCLK Specifies the horizontal spacing for a mouse
double-click. When the horizontal distance between
two mouse clicks is less than this value, two mouse
clicks are considered a double-click.
SV_CXDLGFRAME Specifies the number of pixels along the x-axis of a
dialog-box frame.
SV_CXFULLSCREEN Specifies the number of pixels along the x-axis of
the client window of a maximized frame window.
SV_CXHSCROLLARROW Specifies the number of pixels along the x-axis of a
horizontal scroll arrow.
SV_CXHSLIDER Specifies the number of pixels along the x-axis of a
horizontal scroll-bar slider.
SV_CXICON Specifies the number of pixels along the x-axis of
an icon.
SV_CXMINMAXBUTTON Specifies the width (in pixels) of a minimize or
maximize button.
SV_CXPOINTER Specifies the number of pixels along the x-axis of
the mouse pointer.
SV_CXSCREEN Specifies the number of pixels along the x-axis of
the display.
SV_CXSIZEBORDER Specifies the number of pixels along the x-axis in a
window-sizing border.
SV_CXVSCROLL Specifies the number of pixels along the x-axis of a
vertical scroll bar.
SV_CYBORDER Specifies the number of pixels along the y-axis of a
window border.
SV_CYBYTEALIGN Specifies a vertical alignment that is more
efficient for the device driver.
SV_CYDBLCLK Specifies the vertical spacing for a mouse
double-click. When the vertical distance between two
mouse clicks is less than this value, two mouse
clicks are considered a double-click.
SV_CYDLGFRAME Specifies the number of pixels along the y-axis of a
dialog-box frame window.
SV_CYFULLSCREEN Specifies the number of pixels along the y-axis of
the client window of a maximized frame window.
SV_CYHSCROLL Specifies the number of pixels along the y-axis of a
horizontal scroll bar.
SV_CYICON Specifies the number of pixels along y-axis of an
icon.
SV_CYMENU Specifies the height (in pixels) of a menu.
SV_CYMINMAXBUTTON Specifies the height (in pixels) of a minimize or
maximize button.
SV_CYPOINTER Specifies the number of pixels along the y-axis of
the mouse pointer.
SV_CYSCREEN Specifies the number of pixels along the y-axis of
the display.
SV_CYSIZEBORDER Specifies the number of pixels along the y-axis in a
window-sizing border.
SV_CYTITLEBAR Specifies the number of pixels along the y-axis of a
title-bar window.
SV_CYVSCROLLARROW Specifies the number of pixels along the y-axis of a
vertical scroll arrow.
SV_CYVSLIDER Specifies the number of pixels along the y-axis of a
vertical scroll-bar slider.
SV_DBLCLKTIME Specifies the mouse double-click time, in
milliseconds. When the time between two mouse clicks
is less than this value, two mouse clicks are
considered a double-click.
SV_DEBUG Reserved.
SV_ERRORDURATION Specifies the duration (in milliseconds) of a
WA_ERROR sound generated by the WinAlarm function.
SV_ERRORFREQ Specifies the frequency (in hertz) of a WA_ERROR
sound generated by the WinAlarm function.
SV_EXTRAKEYBEEP Specifies whether the beep is enabled for extended
keys (keys not on an IBM PS/2 or compatible
keyboard).
SV_FIRSTSCROLLRATE Specifies the delay (in milliseconds) between
clicking and holding down the mouse button (when the
mouse pointer is on a scroll arrow or scroll bar)
and the beginning of scroll-bar auto-repeat
activity.
SV_INSERTMODE Specifies whether insert mode is on or off for
entry-field controls.
SV_MENUROLLDOWNDELAY Specifies the delay for menu roll-down.
SV_MENUROLLUPDELAY Specifies the delay for menu roll-up.
SV_MOUSEPRESENT Specifies whether the mouse is present. A value of
TRUE means the mouse is present.
SV_NOTEDURATION Specifies the duration (in milliseconds) of a
WA_NOTE sound generated by the WinAlarm function.
SV_NOTEFREQ Specifies the frequency (in hertz) of a WA_NOTE
sound generated by the WinAlarm function.
SV_NUMBEREDLISTS Reserved.
SV_POINTERLEVEL Specifies the mouse-pointer display count. The mouse
is visible only when the display count is zero.
SV_SCROLLRATE Specifies the delay (in milliseconds) between
scroll-bar auto-repeat events.
SV_SETLIGHTS Specifies whether the system controls the keyboard
indicator lights.
SV_SWAPBUTTON Specifies whether the mouse buttons are swapped. A
value of TRUE means the mouse buttons are swapped.
SV_TASKLISTMOUSEACCESS Specifies whether the user can access the Task List
by clicking the right mouse button.
SV_TRACKRECTLEVEL Specifies the tracking-rectangle display count. The
tracking rectangle is visible only when the display
count is zero.
SV_WARNINGDURATION Specifies the duration (in milliseconds) of a
WA_WARNING sound generated by the WinAlarm
function.
SV_WARNINGFREQ Specifies the frequency (in hertz) of a WA_WARNING
sound generated by the WinAlarm function.
See Also
WinQuerySysValue, WinSetSysValue
♦