DosSizeSeg

This call returns the size of a segment.

DosSizeSeg

(Selector, Size)

Selector (SEL) - input

Selector/segment of the segment for which size is to be determined. This must be the base selector in the case of a huge segment.
Size (PULONG) - output
Address of the returned segment size. For non-huge segments, size is in the range 0 through 64KB. For huge segments, size equals (NUMSEG << 16) + ASIZE where NUMSEG and ASIZE are the last values passed successfully to DosAllocHuge or DosReallocHuge for this huge segment.
rc (USHORT) - return
Return code description is:
• NO_ERROR
Remarks

This function provides compatibility for family applications that must run in DOS or OS/2 mode. DosSizeSeg returns the actual size of memory allocated by a DosAllocSeg or DosAllocHuge request and is intended for use when the application is running in DOS mode, where allocations are rounded up to the next paragraph.

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