Int 20/Vx=0037h

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Microsoft Windows - VMINI / ENABLE - VxD SERVICES

VxD = 0037h

Note: The desired VxD and service number are identified by the data immediately following the INT 20 instruction, as in: INT 20h DW service number DW VxD identifier

See Also: INT 2F/AX=1684h"DEVICE API" - INT 30"Windows" - #01265 - #01340

(Table 01300) Values for VMINI / ENABLE (VxD ID 0037h) service number: 0000h get version.

Return:
CF clear EAX = version (AH = major, AL = minor) 0001h "VMINI_Update". ??? (performs VMMCall 1800Eh, then falls through to service 04h).

Return:
EAX = system time??? 0002h "VMINI_Status". Get current ???.

Return:
EAX = ??? 0003h "VMINI_DisplayError" (schedules a global event via VMMCall 1800Eh).

Return:
??? 0004h "VMINI_SetTimeStamp" (performs VMMCall 100CFh).

Return:
EAX = system time 0005h "VMINI_Siren" (call ??? priority event).

Return:
Nothing 0006h "VMINI_RegisterAccess" (set ??? / get ???). EDI -> buffer containing data to copy into VxD and space for results.

Return:
EDI buffer updated 0007h "VMINI_GetData". EBX = ??? flags (bits 2,15,17,18 checked). EDI -> ???. ???.

Return:
??? 0008h "VMINI_ShutDownItem" (schedules a global event via VMMCall 1800Eh).

Return:
??? 0009h "VMINI_RegisterSK" (get ??? data). EDI -> buffer for data (see #01301).

Return:
EDI buffer updated if large enough

See Also: #01299 - #01302 - #02677 at INT 2F/AX=1684h/BX=0037h

Format of ENABLE.VXD ??? data: Offset Size Description (Table 01301) 00h DWORD (ret) length of data, including this word (call) length of buffer 04h DWORD -> 24-byte (or larger) buffer 08h DWORD -> 20-byte buffer 0Ch DWORD -> 260-byte buffer 10h DWORD -> 260-byte buffer

See Also: #01300

Category: Windows - Int 20h - M

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