111 lines
2.2 KiB
C++
111 lines
2.2 KiB
C++
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/*++
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Copyright (c) 2000 Microsoft Corporation
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Module Name:
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data.cpp
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Abstract:
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Contains registry "Data" abstraction
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implementation
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Author:
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Mike Cirello
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Vijay Jayaseelan (vijayj)
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Revision History:
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03 March 2001 :
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Rewamp the whole source to make it more maintainable
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(particularly readable)
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--*/
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#include "Data.h"
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//////////////////////////////////////////////////////////////////////
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// Construction/Destruction
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//////////////////////////////////////////////////////////////////////
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//
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// this class basically converts these variable types to a BYTE pointer
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// so the info can be stored in the registry
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//
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// Arguments:
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// b - data in BYTE stream. OPTIONAL
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// d - data as a DWORD. OPTIONAL
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// t - data in TCHAR stream. OPTIONAL
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// flag - which data type is valid?
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// bSize - if data is in BYTE stream this must have the length of the stream.
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//
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Data::Data(
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IN PBYTE b,
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IN DWORD d,
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IN PCTSTR t,
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IN DWORD flag,
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IN int bSize)
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{
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DWORD fourthbyte = 4278190080;
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DWORD thirdbyte = 16711680;
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DWORD secondbyte = 65280;
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DWORD firstbyte = 255;
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PCTSTR ptr;
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pByte = b;
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dword = d;
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pTchar = t;
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nFlags = flag;
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size = -1;
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switch (nFlags) {
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case (1):
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size = bSize;
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break;
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case (2):
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if ( pByte = new BYTE[4] ){
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size = 4;
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pByte[3] = (BYTE)((dword & fourthbyte) >> 24);
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pByte[2] = (BYTE)((dword & thirdbyte) >> 16);
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pByte[1] = (BYTE)((dword & secondbyte) >> 8);
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pByte[0] = (BYTE)(dword & firstbyte);
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}
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break;
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case (4):
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size = wcslen(t)+1;
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ptr = t+size;
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while(*ptr!='\0') {
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size += wcslen(ptr)+1;
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ptr = t+size;
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}
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size *= 2;
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size += 2;
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case (3):
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if (size == -1) {
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size = (wcslen(t)*2)+2;
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}
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if ( pByte = new BYTE[size] ) {
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for (int x=0;x<((size/2)-1);x++) {
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pByte[x*2] = (BYTE)(pTchar[x] & firstbyte);
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pByte[1+(x*2)] = (BYTE)((pTchar[x] & secondbyte) >> 8);
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}
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pByte[size-1] = pByte[size-2] = '\0';
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}
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break;
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default:
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break;
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}
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}
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