DosSizeSeg

Bindings:  C, MASM 

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: 

    0         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.