VARLEN() Short: ------ VARLEN() Returns length of a variable of any type Returns: -------- <nLength> => Length of variable Syntax: ------- Varlength(expX) Description: ------------ Converts expX to character with VAR2CHAR() and then returns its length Examples: --------- VARLEN(123.45) //returns 6 VARLEN(.F.) //returns 3 VARLEN(DATE()) //returns 8 Source: ------- S_VARLEN.PRG
VAR2CHAR()
Short:
------
VAR2CHAR() Converts any type variable to character type
Returns:
--------
<cCharVal> => value as character
Syntax:
-------
Var2char(expX)
Description:
------------
Converts variable in <expX> to type character
Examples:
---------
dtype := ctod("01/01/80")
ntype := 128.45
ltype := .t.
VAR2CHAR(dtype) // returns "01/01/80"
VAR2CHAR(ntype) // returns "128.45"
VAR2CHAR(ltype) //returns ".t."
Warnings:
----------
Numerics will be returned with a length of 10 minimum
You may wish to trim this.
Notes:
-------
Returns memo types as ""
PREVIOUSLY ACCEPTED THE 'NAME' OF THE VARIABLE. NOW
THE VALUE IS PASSED IN DIRECTLY.
Source:
-------
S_VAR2.PRG
UNSELECTED() Short: ------ UNSELECTED() Returns color integer for UNSELECTED setting Returns: -------- <nColor> => numeric color integer for unselected color setting Syntax: ------- UNSELECTED() Description: ------------ Returns numeric color integer for use with functions which require it like ATT(), PRNT(). Examples: --------- nUnsel = UNSELECTED() PRNT(10,10,"Waiting...",nUnsel) Notes: ------- Source: ------- S_UNSEL.PRG
UNIQFNAME()
Short:
------
UNIQFNAME() Creates a unique file name
Returns:
--------
<cUniqueName> => unique file name
Syntax:
-------
UNIQFNAME(cExtension,[cPath],[cPrefix])
Description:
------------
Attempts to create a unique file name using
<cExtension> extension for file.
[cPath] path to check
[cPrefix] prefix (first letter) of file name
(defaults to U)
Examples:
---------
cTempfile := UNIQFNAME("DBF")
cTempfile := UNIQFNAME("NTX","C:\local\")
Source:
-------
S_UNIQF.PRG
UNBOX()
Short:
------
UNBOX() Removes a box created by makebox()
Returns:
--------
Nothing
Syntax:
-------
Unbox([cMakeBox],[nTop,nLeft,nBottom,nRight],[expRestScreen] )
Description:
------------
UNBOX restores the screen <cMakeBox> saved by
MAKEBOX(). MAKEBOX() stores the dimensions and color in the
returned string, so it is not necessary to pass these to
UNBOX(). If the dimensions are passed, UNBOX() assumes these are
not part of the saved string, and assumes the string is a
savescreen() string. If the string and any other single param
are passed, UNBOX() assumes it is a full screen (0,0,24,79)
restore and does so.
[nTop,nLeft,nBottom,nRight] - the dimensions of the box.
Use these to UNBOX() a screen saved with SAVESCREEN().
[bcRestScreen] This is a block which can override the
default screen restore mechanism. If passed, this screen restore
is used instead of the default. To set back to default, pass
this parameter as an empty string "". If passing this parameter,
pass all other parameters as NIL. What this does, basically, is
set up a static variable which holds the screen restore block.
Default is {|t,l,b,r,s|restscreen(t,l,b,r,s)} or if sls_xplode()
is (.t.), {|t,l,b,r,s|bxx_imbox(t,l,b,r,s)} (an internal
function within S_UNBOX.PRG) .
Examples:
---------
cMsgBox := MAKEBOX(10,40,12,60,'W/R,+GR/R')
@11,42 SAY "What's up, Doc ?"
inkey(0)
UNBOX(cMsgBox)
// to set up the alternate screen restore method:
unbox(nil,nil,nil,nil,nil,{|t,l,b,r,s| ss_fade(t,l,b,r,s)})
unbox(nil,nil,nil,nil,nil,{|t,l,b,r,s| ss_fall(t,l,b,r,s,100)} )
// to set screen restore back to the default
unbox(nil,nil,nil,nil,nil,"")
Source:
-------
S_UNBOX.PRG
