INT 15 - TopViewTopView, DESQview, TaskView, OmniView, other compatibles - "OSTACK" - SWITCH TO TASK'S INTERNAL STACK AX = 101Ah Return: stack switched Notes: this call may not be nested; a second call must be preceded by a call to "USTACK" (AX=1025h) while TopViewTopView, DESQview, TaskView, OmniView, other compatibles requires many 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. calls to be executed while on the task's internal stack, DESQview allows those calls to be executed regardless of the current stack SeeAlso: AX=1025h