CBL_WRITE_SCR_CHATTRS

Writes a string of characters and their attributes to the screen.

Restriction: This routine is supported for native COBOL only.

Syntax:

call "CBL_WRITE_SCR_CHATTRS" using     screen-position
                                       character-buffer
                                       attribute-buffer
                                       string-length
                             returning status-code

Parameters

screen-position

Group predefined as cblt-screen-position containing:

01 cblt-screen-position                 typedef.
   03    cblte-scrp-row                  cblt-x1-compx. 	*> pic x comp-x.
   03    cblte-scrp-col                  cblt-x1-compx. 	*> pic x comp-x.

character-buffer

Call prototype (see Key): pic x (n).

Picture: pic x (n).

attribute-buffer

Call prototype (see Key): pic x (n).

Picture: pic x (n).

string-length

Call prototype (see Key): cblt-x2-compx.

Picture: pic x (2) comp-x.

status-code

See Library Routines - Key.

On Entry:

screen-position

The screen position at which to start writing. The top left corner is row 0, column 0. See Screen Routines

character-buffer

The characters to write.

attribute-buffer

The attribute(s) to write. Use the following table to set one or more attributes:

B"10000000"	BACKGROUND HIGHLIGHT
B"01000000"	BACKGROUND-COLOR (RED)
B"00100000"	BACKGROUND-COLOR (GREEN)
B"00010000"	BACKGROUND-COLOR (BLUE)
B"00001000"	FOREGROUND HIGHLIGHT
B"00000100"	FOREGROUND-COLOR (RED)
B"00000010"	FOREGROUND-COLOR (GREEN)
B"00000001"	FOREGROUND-COLOR (BLUE)

string-length

The length of the string to write. If this would go off the end of the screen, the write finishes at the end of the screen.

On Exit:

None

Comments:

The blink attribute is not supported on this COBOL system. Specifying that a character is to blink results in the character being displayed with a bright background color.