Int EF/CX=0473h

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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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