Assembly Language Help (alang.hlp) (Table of Contents; Topic list)
Interrupt 10h, Function 12h (Video Config.)
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  Interrupt:   10h     Function:   12h
  Title:        Video Configuration Interrupts
 
     Subfunction     Name
 
     10h             Get Configuration Information
     20h             Select Alternate PrintScreen
     30h             Set Scan Lines
     31h             Enable/Disable Default Palette Loading
     32h             Enable/Disable Video
     33h             Enable/Disable Gray-Scale Summing
     34h             Enable/Disable Cursor Emulation
     35h             Switch Active Display
     36h             Enable/Disable Screen Refresh
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