Function 0FEh Get Alternate Screen Buffer Address (text mode only)(Topview/DesQview/Taskview)
entry AH 0FEh
ES:DI segment:offset of assumed video buffer
return: ES:DI segment:offset of actual video buffer
note 1) This alternate video buffer can be written to directly, in the same
manner as writing to address -B0000 or address -B8000. The MT
program will manage the actual display.
2) There is no need to synchronize vertical retrace when writing to the
alternate buffer; this is managed by the MT program
3) If TopView or DESQview is not running, ES:DI is returned unchanged.
4) TopView requires that function 0FFh be called every time you write into
the buffer to tell TopView that something changed
file: /Techref/int/10f/fe.htm, 1KB, , updated: 1999/4/26 10:51, local time: 2024/12/23 06:44,
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