Sharp el-9950 - Page 107

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Chapter 4: Graphing Features
5 PxlOFF( PxlOFF(column, row)
Erases a pixel point at a given screen location indicated
by column and row.
6 PxlCHG( PxlCHG(column, row)
Changesthestatus(i.e.,visible/invisible)ofapixelata
given screen location indicated by column and row.
7 PxlTST( PxlTST(column, row)
Returns“1”ifapixelpointispresentatagivenscreen
location indicated by column and row.
Returns"0"ifnopixelpointexists.
4 PxlON( PxlON(column, row)
Draws a pixel point at a given screen location indicated
by column and row.
The column and row definitions are as follows:
Column:0to132,
Row:0to64.
(0, 0) (126, 0)
(0, 62) (126, 62)
column
132
This area cannot be specified
64
row