Virtual Devices (3.1) (vdag31qh.hlp) (Table of Contents; Topic list)
Important Notice
The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.
Miscellaneous Services
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Begin_Reentrant_Execution  Start reentrant execution
End_Reentrant_Execution    End reentrant execution
GetSetDetailedVMError      Gets and sets error information
Hook_Device_Service        Install a hook for a device service
Hook_Device_V86_API        Installs an V86-mode API callback
Hook_Device_PM_API         Installs an protected-mode API callback
Install_Exception_Handler  Installs an exception handler
Map_Flat                   Converts an V86 or protected-mode address
Map_Lin_To_VM_Addr         Converts a linear address
MMGR_SetNULPageAddr        Sets physical address of system nul page
Remove_Exception_Handler   Removes an exception handler
Set_Delete_On_Exit_File    Adds file to list to delete on exit
Set_System_Exit_Code       Sets the Windows exit code value
System_Control             Sends a control message to all virtual devices