CBL_SCR_GET_ATTR_INFO

Restriction: This routine is supported for native COBOL only.

Syntax:

call "CBL_SCR_GET_ATTR_INFO" using      attribute-info
                             returning status-code

Parameters

RGB-values
Group predefined as cblt-generic-attr-rgb-values containing:
01 cblt-generic-attr-information   typedef.
  03 cblte-gai-display-class       cblt-x1-compx.	 *> pic x comp-x.
  03 cblte-gai-colormap-size       cblt-x2-compx. 	*> pic x(2) comp-x.
  03 cblte-gai-colormap-flags      cblt-x1-compx. 	*> pic x comp-x.
  03 cblte-gai-bits-per-gun        cblt-x1-compx. 	*> pic x comp-x.

status-code
See Library Routines - Key.

On Entry:

None

On Exit:

cblte-gai-display-class
The class of the environment:
1 Monochrome
2 Read-only colormap
3 Read/write colormap
4 Read-only decomposed colormap
5 Read/write decomposed colormap
cblte-gai-colormap-size
Number of entries on the colormap.
cblte-gai-colormap-flags
Bits set as follows:
Bit 0
1 The colormap is read-write.
0 The colormap is read-only.
Bit 1
1 Environment allows virtual colormaps to be created.
0 Environment does not allow virtual colormaps to be created.
Bit 2
1 Reading back attributes read back the values written
0 Read back what is currently on the screen
cblte-gai-bits-per-gun
Number of significant bits of the RGB values that are actually used to drive the hardware. A value of zero indicates that the number of bits is unknown for the environment. If different guns have different numbers of significant bits the lowest number of bits is used.