Int 21/AX=4403h

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Compaq AG1024.SYS - CPQ_MGES - IOCTL OUTPUT

AX = 4403h
BX = file handle referencing device "CPQ_MGES"
DS:DX -> request packet (see #01527)
CX ignored

Return:
CF clear if successful AX destroyed data buffer filled (if applicable) first word of request packet set to number of bytes of data available (amount returned is smaller of this and requested amount) CF set on error AX = error code (01h,05h,06h,0Dh) (see #01680 at AH=59h/BX=0000h)

Program: AG1024.SYS is a device driver for the Advanced Graphics 1024 adapter

See Also: AX=4403h"RGDI"

Format of Compaq AG1024.SYS request packet: Offset Size Description (Table 01527) 00h WORD function 0000h get ??? (26h bytes) 0001h get ??? (36h bytes) 0002h set ??? (same as returned by function 0001h) 0003h get ??? (6 bytes) 0004h get ??? 0005h get ??? 0006h get ??? (10h bytes) 0007h set ??? (same as returned by function 0006h) ---functions 00h-03h,06h,07h--- 02h WORD size of data buffer 04h DWORD -> buffer for function's data ---functions 04h,05h--- 02h WORD ??? 04h WORD size of data buffer 06h DWORD -> buffer to receive data

Category: Video - Int 21h - C

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