Wincor Nixdorf BA63G, Руководство по эксплуатации продукта

Страница: 21 / 37

Customer display control
GB - 16
D
UMP USER DEFINED PICTURE TO SCREEN
The following command carries a picture that to be dumped onto the display screen:
Code Hexadecimal
ESC ‘[‘ ‘Py’ ; ‘Px’ ‘D’ 1B 5B 31 3B 31 44
The screen contains 64 pixel lines, each line has 30 bytes and each byte has 8 pixels.
Parameters Py and Px specify the byte coordinates that reference to the upper-left
corner of the picture.
The picture is expressed by a string of data bytes. The first two bytes of the string give
the size of the picture. First byte is the width in term of byte and second byte is the
height in term of line. The most significant bit of a data byte represents the left pixel. The
picture data are sent from left to right, line by line.
Parameters Py and Px are 1 or 2 ASCII decimal numbers respectively.
Byte coordinates of the screen are show below:
1; 1 1; 2 .... .... .... 1; 30
2; 1 2; 2 .... .... .... 2; 30
: : :
: : :
: : :
64; 1 64; 2 .... .... .... 64; 30
The data string following the ESC [ Py;Px D is treated as pixel information with a length
of width * 2 bytes.