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AX = 102Ch ES:DI -> contents of .PIF/.DVP file (see #00427) BX = size of .PIF/.DVP info
Return:
BX = segment of object handle for new task 0000h on error
See Also: AX=DE24h - INT 21/AH=4Bh
Format of .PIF/.DVP file: Offset Size Description (Table 00427) 00h BYTE reserved (0) 01h BYTE checksum of bytes 02h through 170h 02h 30 BYTEs blank-padded program title 20h WORD maximum memory to allocate to partition in KB 22h WORD minimum memory required in KB 24h 64 BYTEs ASCIZ program pathname 64h BYTE default drive letter ('A',...) 65h 64 BYTEs ASCIZ default directory name A5h 64 BYTEs ASCIZ program parameters E5h BYTE initial screen mode (0-7) (also see offset 189h) E6h BYTE number of text pages used E7h BYTE number of first interrupt to save E8h BYTE number of last interrupt to save E9h BYTE rows in virtual screen buffer EAh BYTE columns in virtual screen buffer EBh BYTE initial window position, row ECh BYTE initial window position, column EDh WORD system memory in KB EFh 64 BYTEs ASCIZ shared program name 12Fh 64 BYTEs ASCIZ shared program data file 16Fh BYTE program flags 1 (see #00428) 170h BYTE flags2
bit 6:
Uses command-line parameters in field at A5hbit 5:
Swaps interrupt vectors ---information unique to .DVP files--- 171h 2 BYTEs keys to use on open menu 173h WORD size of script buffer in bytes 175h WORD automatically give up CPU after this many tests for keyboard input in one clock tick (default 0 = never) 177h BYTE nonzero = "uses own colors" 178h BYTE nonzero if application swappable 179h 3 BYTEs reserved (0) according to Quarterdeck documentation in actual .DVP files, frequently 01h 17Ch BYTE nonzero to automatically close on exit (see also #00430) 17Dh BYTE nonzero if copy-protect floppy is required ---information unique to DESQview 2.0+--- 17Eh BYTE .DVP version number 00h DESQview v1.2+ 01h DESQview v2.0+ 02h DESQview v2.2+ 17Fh BYTE reserved (0) 180h BYTE initial number of rows in physical window 181h BYTE initial number of columns in physical window 182h WORD maximum expanded memory to allow, in KB 184h BYTE DVP program flags 3 (see #00429) 185h BYTE keyboard conflict level (0-4 for DV<2.26, 00h-0Fh for DV2.26+) (see #00431) 186h BYTE number of graphics pages used 187h WORD extra system memory size 189h BYTE initial screen mode (FFh = default) (overrides offset E5h) ---information unique to DESQview 2.2+--- 18Ah BYTE serial port usage FFh uses all serial ports 00h no serial ports 01h only COM1 02h only COM2 18Bh BYTE DVP program flags 4 (see #00430) 18Ch BYTE protection level for 386 machines 18Dh 19 BYTEs reserved (0) for regular DESQview ---information unique to DESQview/X 1.0--- 18Dh BYTE X flagsbits 3-7:
Unused (0)bit 2:
Don't display wait message when opening windowbit 1:
Don't display DOS windowbit 0:
(XNEWPROC) use DOS client layer (DOS-to-X) (NEWPROC) inherit DOS client layer usage 18Eh BYTE X keyboard behavior (0-3) 18Fh BYTE font scaling 00h fixed fonts 01h scalable fonts 190h 10 BYTEs reserved (0) 19Ah WORD length of data follownig XDVP signature 19Ch 4 BYTEs signature "XDVP" 1A0h N BYTEs list of variable length records (see #00432)Bitfields for .PIF/.DVP program flags 1: Bit(s) Description (Table 00428) 7 writes text directly to screen 6 runs in foreground only (see also #00427 offset 184h) 5 uses math coprocessor 4 accesses system keyboard buffer directly 3-1 reserved (0) 0 swappable
See Also: #00427 - #00429 - #00430
Bitfields for .DVP program flags 3: Bit(s) Description (Table 00429) 7 automatically assign window position 5 maximum memory value has been specified 4 disallow "Close" command 3 foreground-only when doing graphics. Set by DV 2.3+ when "Runs in Background" = "D" (undoc) 2 don't virtualize (see also #00430) 1 foreground-only during DOS calls. Set by DV 2.3+ when "Runs in Background" = "D" (undoc)
See Also: #00427 - #00428 - #00430
Bitfields for .DVP program flags 4: Bit(s) Description (Table 00430) 7 automatically close application on exit if .COM or .EXE specified. (see also #00427 offset 17Ch) 6 swappable if not using serial ports 5 start program with window hidden (v2.26+) 4 start program in background (v2.26+) 3 virtualize text (see also #00429) 2 virtualize graphics (see also #00429) 1 share CPU when foreground 0 share EGA when foreground and zoomed
See Also: #00427 - #00428 - #00429
Bitfields for DESQview keyboard conflict level: Bit(s) Description (Table 00431) 3 save/restore entire INT 09 handler state every taskswtch 2 take special precautions for programs which read the BIOS keyboard buffer directly from memory 1 never indicate keystroke available during scripts/xfers 0 only indicate keystroke available every sixth poll
See Also: #00427
Format of DESQview/X variable length record: Offset Size Description (Table 00432) 00h WORD length of following record, 0000h if end of record list 02h BYTE record type 01h script filename, up to 64 characters 02h command-line parameters (allows >64 characters on cmdline) 03h environment inheritance 04h environment string 05h starting window position ---types 01h,02h,04h--- 03h N BYTEs ASCII data ---type 03h--- 03h BYTE inheritance 00h do not inherit 01h inherit environment ---type 05h--- 03h N BYTEs ASCII copy of fields as typed into DVPMAN, separated by commas: starting row, starting column, starting height, starting width
Note: If there are multiple occurrences of record types 01h, 02h, or 03h, only the last instance of each type is used; multiple occurrences of type 04h are concatenated
See Also: #00427
Category: DESQview/TopView and Quarterdeck Programs - Int 15h - D
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