Compsee Apex III, Technical Reference Manual

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Apex PDT Technical Reference Manual 7 Apex Programming Resource
COAM30002 Rev. 2.00 8/13/02
7-17
GetStringE continued
Notes
cont.:
With the keyboard enabled (via STR_KEYBRD), any
extended key, a carriage return, or a linefeed terminates
data entry. An <ESCape> nulls the string and returns.
Regardless of the options, this function always accepts
<ENT> as a terminator.
Data entry is terminated upon reaching maxlen .
A NULL byte is appended to s to mark the end of the
string. This function should not be used when scanning
symbols with an embedded NULL character.
The Bar Code Driver must be loaded and the application
program must link into the Bar Code Driver library. The
calling program must register an external buffer with the
Bar Code Driver using
BcApiRegisterBuffer() prior to
using GetStringE(). See p. 6-14.
This function always returns with the <SCAN> key
disabled.
ShowField
Syntax:
void ShowField(int le n, short row, short col)
Input:
len = number of spaces
row , col = The display point. The text position given by
the coordinates (1, 1) is defined as the upper-left corner of
the text window.
Returns:
None
Notes:
Prints len number of spaces using the current foreground
and background colors at the specified cursor location. On
completion, the cursor is positioned at
row, col .
GetchLP
Syntax:
int GetchLP(void)
Input:
None
Returns:
The character read from the keyboard.
Notes:
Gets a single character from the keyboard without echoing
to the screen. Places the Apex PDT in a low power state
while waiting on input. This function is a low power
version of the standard function
getch() .