Int EF/CX=0473h

GEM - VDI INTERFACE

CX = 0473h
DS:DX -> GEM VDI parameter block (see #04066)

Note: If installed, one of the following ASCII signatures will appear two bytes after the INT EF entry point: "GEMVDI" GEM VDI (but not AES) is present "GEMAES" GEM/ViewMAX VDI and AES are both present "ViewMAX" ViewMAX VDI (only) is present each of the above is followed by an ASCIZ number indicating the version ("10" for GEM/1 AES and VDI; "20" for GEM/2,GEM/3,ViewMAX AES and GEM/2 VDI; "23" for GEM/3 VDI; and "1" for ViewMAX VDIs)

See Also: INT EF/CX=00C8h - INT EF/CX=00C9h

Index:
Installation check;GEM

Format of VDI parameter block:

Offset  Size    Description     (Table 04066)
00h    DWORD   -> control array (see #04067)
08h    DWORD   -> integer parameters
0Ch    DWORD   -> (x,y) pair parameters
10h    DWORD   -> integer results
14h    DWORD   -> (x,y) pair results

See Also: #04064


Format of VDI control array:

Offset  Size    Description     (Table 04067)
00h    WORD    (call) function number (0001h-0084h)
02h    WORD    (call) number of words of pair parameters
04h    WORD    (ret) number of words of pair results
06h    WORD    (call) number of words of integer parameters
08h    WORD    (ret) number of words of integer results
0Ah    WORD    subfunction number
0Ch    WORD    graphics handle
0Eh    DWORD   (call) -> pointer parameter
12h    DWORD   (ret) -> pointer result

See Also: #04066

Category: Other Operating Systems - Int EFh - G

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