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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.
Page Allocation and Management
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_CopyPageTable                  Copies page table entries
_GetAppFlatDSAlias              Returns read-only selector for flat DS
_GetDemandPageInfo              Retrieves information for demand paging
_GetFirstV86Page                Returns number of first page for V86 memory
_GetFreePageCount               Returns the number of free pages
_GetGlblRng0V86IntBase          Returns address for ring-0 V86 handlers
_GetLastV86Page                 Returns number of last page of V86 memory
_GetNulPageHandle               Returns handle of system nul page
_GetSysPageCount                Returns count of system pages
_GetVMPgCount                   Returns count of pages in a virtual machine
_ModifyPageBits                 Modifies page attribute bits
_PageAllocate                   Allocates a memory block
_PageFree                       Frees a memory block
_PageGetAllocInfo               Returns allocation information
_PageGetSizeAddr                Returns size and address of memory block
_PageLock                       Locks pages
_PageReAllocate                 Reallocates a block of memory
_PageUnLock                     Unlocks pages