INT 15 - TopViewTopView, DESQview, TaskView, OmniView, other compatibles - "PGMINT" - INTERRUPT ANOTHER TASK AX = 1021h BX = segment of object handle for task to interrupt (not self) DX:CX -> FAR routine to jump to next time task is run Return: nothing Notes: the FAR routine is entered with the current ES, DS, SI, DI, and BP values, using the task's internal stack (see AX=101Ah); only SS:SP needs to be preserved multiple PGMINTs to a single task are processed last-in first-out if the other task is in a DOS or DV 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. call, the interruption will occur on return from that call