INT 2F - MS Windows - VTD - 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 = 0005h (virtual device ID for VTD 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 #02646) 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 an 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. 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.",INT 20"Windows" (Table 02646) Call VTD.386/VTD.VXD entry point with: AX = function number 0000h get VTD version number Return: CF clear AH = major version AL = minor version 0100h get current clock tick time Return: EDX:EAX = clock tick time in 840ns units since Windows was started 0101h get current system time in milliseconds Return: EAX = time in milliseconds that Windows has been running 0102h get current virtual machine time Return: EAX = cumulative amount of time the virtual machine has been active, in milliseconds Note: this entry point should only be called directly when TOOLHELP.DLLsee Dynamic Link Library TimerCount() cannot be called SeeAlso: #01268,#01270,#01269 at INT 20"Windows"