INT 2F P - MS Windows - VFLATD - GET API(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running. Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes. ENTRY POINT AX = 1684h BX = 011Fh (virtual device ID for VFLATD device) (see #02642) ES:DI = 0000h:0000h Return: ES:DI -> VxDA virtual device driver for Windows 3.x or 95. So called because nearly all of the Windows 3.0 drivers had names of the form "VdeviceD". See also device driver. API(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running. Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes. entry point (see #02681) 0000h:0000h if the VxDA virtual device driver for Windows 3.x or 95. So called because nearly all of the Windows 3.0 drivers had names of the form "VdeviceD". See also device driver. does not support API(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running. Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes. in current mode SeeAlso: AX=1684h"DEVICE API(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running. Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes.",AX=1684/BX=045Dh,INT 20"Windows" (Table 02681) Call VFLATD.VXD entry point with: DL = function number 00h get VFLATD version and ??? Return: CF clear EAX = version (AH = major, AL = minor) EBX = ??? ECX = ??? EDX = ??? or 00000000h 01h ??? AX = ??? CX = ??? Return: EAX = ??? EDX = ??? 02h ??? ??? 03h ??? EAX = ??? EBX = ??? ESI = ??? CX = ??? DH = ??? Return: EAX = ??? EDX = ??? CF clear 04h ??? DH = ??? EAX = ??? ECX = ??? Return: CF clear EAX = ??? EDX = ??? 05h ??? ??? Note: locks some linear memory and calls fn 02h 06h ??? ??? Return: CF clear if successful CF set on error Note: calls fn 02h and unlocks some linear memory else Return: CF set SeeAlso: #02680