Options (Window Mask)

Optional bits:

• Bit 0 = Available:
  • 0 (FALSE) = This window is currently not available, even if it is defined. The VT does not allow the operator to assign it. If it has already been assigned, the window cell(s) it occupies are displayed empty.
• Bit 1 = Transparent:
  • If this bit is 1, the background colour attribute is not used and the window is transparent.
• Bits 2–7: Reserved, set to 0.