如何将C/C++程序转译成Delphi(九)

王朝delphi·作者佚名  2006-01-08
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Case Integer of starts the variant part of the record. Each variant is identified by an ordinal value. This value has no meaning when the type is being used, but is required for declaration.

Please note the difference between a variant (case-) record and a record without case-declaration.

The following translation is wrong:

type

PProcessHeapEntry = ^TProcessHeapEntry;

TProcessHeapEntry = Record

lpData: Pointer;

cbData: DWord;

cbOverhead: Byte;

iRegionIndex: Byte;

wFlags: Word;

Block: Record

hMem: Thandle

Reserved : Array [0..2] of DWord;

end;

Region: Record

dwCommittedSize: DWord;

dwUnCommittedSize: DWord;

lpFirstBlock: Pointer;

lpLastBlock: Pointer

end);

end;

This wrong translation would cause Block and Region to be consecutive in memory, and not overlaid, as follows:

LpData, cbData, cbOverhead, iRegionIndex, wFlags

HMem, dwReserved

DwCommittedSize, dwUnCommittedSize, lpFirstBlock, lplastBlock

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