520 lines
13 KiB
C
520 lines
13 KiB
C
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#include <windows.h>
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#include "SDKRegEd.h"
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#ifndef DBCS
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#define AnsiNext(x) ((x)+1)
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#endif
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HANDLE hPars = NULL;
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WORD maxKeys = 0;
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BOOL bChangesMade = FALSE;
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static HWND hWndVals, hWndDels;
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char szListbox[] = "listbox";
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extern HANDLE hInstance;
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extern HWND hWndIds, hWndMain;
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extern char szNull[];
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extern VOID NEAR PASCAL MySetSel(HWND hWndList, int index);
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static int NEAR PASCAL AddKeyToList(PSTR szPath, int index, int nLevel)
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{
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PSTR szLast, pNext;
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DWORD dwResult;
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int nResult = -IDS_OUTOFMEMORY;
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WORD *pPars;
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int i, nKeys, nParent, nLevels;
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/* Create the list of parents if necessary */
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if(!hPars) {
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if(!(hPars=LocalAlloc(LMEM_MOVEABLE, 8*sizeof(WORD))))
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goto Error1;
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else
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maxKeys = 8;
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}
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/* Get the current number of keys, and check index
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* index == -1 means to add to the end of the list
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*/
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if((nKeys=(WORD)SendMessage(hWndIds, LB_GETCOUNT, 0, 0L)) == LB_ERR)
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nKeys = 0;
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if(index == 0xffff)
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index = nKeys;
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else if(index > nKeys)
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goto Error1;
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if(!(pPars=(WORD *)LocalLock(hPars)))
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goto Error1;
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szLast = szPath;
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if(*szPath == '\\') {
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/* This is a full path name, which will be inserted the first
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* place it can be. The level and index are ignored: they will
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* need to be determined
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* if this is the root, set the variables and jump to the adding part
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* otherwise, find the existing parent and the new tail
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*/
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if(!*(szPath+1)) {
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/* If the root exists, just return its index
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*/
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if((nResult=FindKey(szPath)) >= 0)
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goto Error2;
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nParent = -1;
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nLevels = 0;
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pNext = szPath + 1;
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goto AddNewKey;
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} else {
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++szLast;
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if((nParent=FindLastExistingKey(0, szLast)) < 0)
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goto Error2;
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index = nParent + 1;
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}
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} else {
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/* Not an absolute path
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* nLevel == -1 means the preceding index is the parent, so nLevel is ignored
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* otherwise, find the ancestor of the preceding key with a lower
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* level than nLevel, and that is the parent
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* Finally, check for existing keys, and adjust nParent and index if necessary
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*/
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if(nLevel == -1) {
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nParent = index - 1;
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} else {
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for(i=index-1; i>=0; i=pPars[i], --nLevel)
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/* do nothing */ ;
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if(nLevel > 0)
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goto Error2;
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for(i=index-1; nLevel<0; i=pPars[i], ++nLevel)
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/* do nothing */ ;
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nParent = i;
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}
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if(index < nKeys) {
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if((nParent=FindLastExistingKey(nParent, szLast)) < 0)
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goto Error2;
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else if(nParent >= index)
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index = nParent + 1;
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}
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}
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/* At this point, index should be set to the intended index,
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* nParent should be set to the parent of the new key,
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* and szLast is the path for the new key (which may have subkeys)
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*/
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for(nLevels=0; pNext=OFFSET(MyStrTok(szLast, '\\'));
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++nLevels, szLast=pNext) {
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AddNewKey:
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if (pNext-szLast > MAX_KEY_LENGTH) {
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nResult = -IDS_BADKEY;
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goto CleanUp;
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}
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/* Make sure we have room for the new parents */
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if(nKeys+nLevels+1 > (int)maxKeys) {
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HANDLE hTemp;
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LocalUnlock(hPars);
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if(!(hTemp=LocalReAlloc(hPars,(maxKeys+8)*sizeof(WORD),LMEM_MOVEABLE)))
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goto Error1;
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hPars = hTemp;
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if(!(pPars=(WORD *)LocalLock(hPars)))
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goto Error1;
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maxKeys += 8;
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}
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if((dwResult=SendMessage(hWndIds, LB_INSERTSTRING, index+nLevels,
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(DWORD)((LPSTR)szLast)))==LB_ERR)
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break;
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if((dwResult=SendMessage(hWndVals, LB_INSERTSTRING, index+nLevels,
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(DWORD)((LPSTR)szNull)))==LB_ERR) {
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SendMessage(hWndIds, LB_DELETESTRING, index+nLevels, 0L);
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break;
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}
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SendMessage(hWndVals, LB_SETITEMDATA, index+nLevels, 1L);
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}
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/* If the new key already exists, return it */
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if(!nLevels)
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nResult = nParent;
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else if(dwResult != LB_ERR)
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nResult = LOWORD(dwResult);
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CleanUp:
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/* update the parent list */
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for(--nKeys; nKeys>=index; --nKeys) {
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if(pPars[nKeys] >= (WORD)index)
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pPars[nKeys+nLevels] = pPars[nKeys] + nLevels;
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else
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pPars[nKeys+nLevels] = pPars[nKeys];
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}
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for(--nLevels; nLevels>=0; --nLevels)
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pPars[index+nLevels] = nParent+nLevels;
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Error2:
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LocalUnlock(hPars);
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Error1:
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return(nResult);
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}
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static WORD NEAR PASCAL ListRegs(HWND hWnd, HKEY hKey, int wLevel)
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{
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HANDLE hTail;
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PSTR pTail;
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int i;
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HKEY hSubKey;
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WORD wErrMsg = NULL;
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for(i=0; !wErrMsg; ++i) {
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if(MyEnumKey(hKey, i, &hTail) != ERROR_SUCCESS)
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break;
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pTail = LocalLock(hTail);
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if((int)(wErrMsg=-AddKeyToList(pTail, -1, wLevel))>0 ||
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(wErrMsg=GetErrMsg((WORD)RegOpenKey(hKey, pTail, &hSubKey))))
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goto Error1;
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wErrMsg = ListRegs(hWnd, hSubKey, wLevel+1);
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RegCloseKey(hSubKey);
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Error1:
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LocalUnlock(hTail);
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LocalFree(hTail);
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}
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return(wErrMsg);
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}
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WORD NEAR PASCAL MyResetIdList(HWND hDlg)
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{
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HKEY hKey;
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int i, nNum;
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WORD wErrMsg = IDS_OUTOFMEMORY;
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if((!hWndVals && !(hWndVals=GetDlgItem(hDlg, ID_VALLIST))) ||
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(!hWndDels && !(hWndDels=GetDlgItem(hDlg, ID_DELLIST))))
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goto Error1;
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bChangesMade = FALSE;
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SendMessage(hWndIds, LB_RESETCONTENT, 0, 0L);
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SendMessage(hWndVals, LB_RESETCONTENT, 0, 0L);
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SendMessage(hWndDels, LB_RESETCONTENT, 0, 0L);
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if((int)(wErrMsg=-AddKeyToList("\\", 0, 0)) <= 0) {
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if(!(wErrMsg=GetErrMsg((WORD)RegCreateKey(HKEY_CLASSES_ROOT,
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NULL, &hKey)))) {
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wErrMsg = ListRegs(hWndIds, hKey, 1);
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RegCloseKey(hKey);
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nNum = (int)SendMessage(hWndVals, LB_GETCOUNT, 0, 0L);
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for(i=0; i<nNum; ++i)
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SendMessage(hWndVals, LB_SETITEMDATA, i, 0L);
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}
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MySetSel(hWndIds, 0);
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}
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Error1:
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return(wErrMsg);
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}
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WORD NEAR PASCAL MySaveChanges(void)
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{
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HKEY hKeyTemp;
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HANDLE hPath, hVal;
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WORD wNum, wErrMsg;
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DWORD dwTemp;
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int i;
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if(wErrMsg=GetErrMsg((WORD)RegOpenKey(HKEY_CLASSES_ROOT, NULL, &hKeyTemp)))
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goto Error1;
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wNum = (WORD)SendMessage(hWndDels, LB_GETCOUNT, 0, 0L);
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for(i=0; !wErrMsg && (WORD)i<wNum; ++i) {
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wErrMsg = IDS_OUTOFMEMORY;
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if(!(hPath=GetListboxString(hWndDels, i)))
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break;
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dwTemp = RegDeleteKey(HKEY_CLASSES_ROOT, LocalLock(hPath)+1);
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wErrMsg = dwTemp==ERROR_BADKEY ? NULL : GetErrMsg((WORD)dwTemp);
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LocalUnlock(hPath);
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LocalFree(hPath);
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}
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wNum = GetErrMsg((WORD)RegCloseKey(hKeyTemp));
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if(wErrMsg || (wErrMsg=wNum) ||
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(wErrMsg=GetErrMsg((WORD)RegCreateKey(HKEY_CLASSES_ROOT, NULL,
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&hKeyTemp))))
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goto Error1;
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wNum = (WORD)SendMessage(hWndVals, LB_GETCOUNT, 0, 0L);
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for(i=wNum-1; !wErrMsg && i>=0; --i) {
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if(!SendMessage(hWndVals, LB_GETITEMDATA, i, 0L))
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continue;
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wErrMsg = IDS_OUTOFMEMORY;
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if(!(hPath=MyGetPath(i)))
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break;
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if(!(hVal=GetListboxString(hWndVals, i)))
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goto Error2;
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wErrMsg = GetErrMsg((WORD)RegSetValue(HKEY_CLASSES_ROOT,
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LocalLock(hPath)+1, REG_SZ, LocalLock(hVal), 0L));
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LocalUnlock(hVal);
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LocalUnlock(hPath);
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LocalFree(hVal);
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Error2:
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LocalFree(hPath);
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}
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wNum = GetErrMsg((WORD)RegCloseKey(hKeyTemp));
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Error1:
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return(wErrMsg ? wErrMsg : wNum);
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}
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WORD NEAR PASCAL MyDeleteKey(int nId)
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{
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HANDLE hPath;
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WORD *pPars;
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int nKeys, i, j;
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WORD wErrMsg = IDS_OUTOFMEMORY;
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/* Get the path and try to delete it */
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if(!(hPath=MyGetPath(nId)))
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goto Error1;
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if(SendMessage(hWndDels, LB_ADDSTRING, 0, (DWORD)((LPSTR)LocalLock(hPath)))
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== LB_ERR)
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goto Error2;
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pPars = (WORD *)LocalLock(hPars);
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nKeys = (WORD)SendMessage(hWndIds, LB_GETCOUNT, 0, 0L);
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/* Find the first key that does not have nId in its parent chain */
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for(i=nId+1; i<nKeys; ++i) {
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for(j=pPars[i]; j>=0 && j!=nId; j=pPars[j])
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/* do nothing */ ;
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if(j != nId)
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break;
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}
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/* Do not delete the root from the list */
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if(!nId)
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++nId;
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/* Delete the string from the listbox */
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for(j=nId; j<i; ++j) {
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SendMessage(hWndIds, LB_DELETESTRING, nId, 0L);
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SendMessage(hWndVals, LB_DELETESTRING, nId, 0L);
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}
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/* Update the parent list */
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i -= nId;
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nKeys -= i;
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for(j=nId; j<nKeys; ++j) {
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if(pPars[j+i] >= (WORD)nId)
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pPars[j] = pPars[j+i] - i;
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else
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pPars[j] = pPars[j+i];
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}
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bChangesMade = TRUE;
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wErrMsg = NULL;
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LocalUnlock(hPars);
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Error2:
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LocalUnlock(hPath);
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LocalFree(hPath);
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Error1:
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return(wErrMsg);
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}
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unsigned long NEAR PASCAL MyGetValue(int nId, HANDLE *hValue)
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{
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unsigned long result;
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HANDLE hPath;
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if(SendMessage(hWndVals, LB_GETITEMDATA, nId, 0L)) {
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if(!(*hValue=GetListboxString(hWndVals, nId)))
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return(ERROR_OUTOFMEMORY);
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result = ERROR_SUCCESS;
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} else {
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if(!(hPath=MyGetPath(nId)))
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return(ERROR_OUTOFMEMORY);
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result = MyQueryValue(HKEY_CLASSES_ROOT, LocalLock(hPath)+1, hValue);
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LocalUnlock(hPath);
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LocalFree(hPath);
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}
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return(result);
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}
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/* Strip off leading and trailing spaces, and return
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* -1 if there are any invalid characters, otherwise the address
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* of the first non-blank.
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*/
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PSTR NEAR PASCAL VerifyKey(PSTR lpK)
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{
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PSTR lpT;
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char cLast = '\0';
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/* skip some spaces, just to be wierd
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*/
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while (*lpK == ' ')
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lpK++;
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/* Special case the string "\"
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*/
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if (*(unsigned int *)lpK == (unsigned int)'\\')
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return(lpK);
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/* Note that no extended characters are allowed, so no DBCS
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* characters are allowed in a key
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*/
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|
|
for (lpT=lpK; ; ++lpT)
|
||
|
|
{
|
||
|
|
switch (*lpT)
|
||
|
|
{
|
||
|
|
case '\0':
|
||
|
|
/* We do not allow a \ as the last char
|
||
|
|
*/
|
||
|
|
return(cLast=='\\' ? (PSTR)-1 : lpK);
|
||
|
|
|
||
|
|
case '\\':
|
||
|
|
/* We do not allow two \'s in a row
|
||
|
|
*/
|
||
|
|
if (cLast == '\\')
|
||
|
|
return((PSTR)-1);
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
/* If we get a control or extended character, return -1.
|
||
|
|
*/
|
||
|
|
if ((char)(*lpT) <= ' ')
|
||
|
|
return((PSTR)-1);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
cLast = *lpT;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
unsigned long NEAR PASCAL SDKSetValue(HKEY hKey, PSTR pSubKey, PSTR pVal)
|
||
|
|
{
|
||
|
|
WORD wNewKey;
|
||
|
|
|
||
|
|
if (hKey == HKEY_CLASSES_ROOT)
|
||
|
|
hKey = 0L;
|
||
|
|
else
|
||
|
|
hKey = -(long)hKey;
|
||
|
|
|
||
|
|
if ((pSubKey=VerifyKey(pSubKey)) == (PSTR)-1)
|
||
|
|
return(ERROR_BADKEY);
|
||
|
|
|
||
|
|
if((int)(wNewKey=(WORD)AddKeyToList(pSubKey, (WORD)hKey+1, -1))>=0 &&
|
||
|
|
SendMessage(hWndVals, LB_INSERTSTRING, wNewKey, (LONG)(LPSTR)pVal)
|
||
|
|
!=LB_ERR) {
|
||
|
|
SendMessage(hWndVals, LB_DELETESTRING, wNewKey+1, 0L);
|
||
|
|
SendMessage(hWndVals, LB_SETITEMDATA, wNewKey, 1L);
|
||
|
|
MySetSel(hWndIds, wNewKey);
|
||
|
|
bChangesMade = TRUE;
|
||
|
|
|
||
|
|
return(ERROR_SUCCESS);
|
||
|
|
}
|
||
|
|
|
||
|
|
return(ERROR_OUTOFMEMORY);
|
||
|
|
}
|
||
|
|
|
||
|
|
int NEAR PASCAL DoCopyKey(int nId, PSTR pPath)
|
||
|
|
{
|
||
|
|
WORD *pPars;
|
||
|
|
int nParent, result, i, j, nKeys, nNewKey;
|
||
|
|
|
||
|
|
pPars = (WORD *)LocalLock(hPars);
|
||
|
|
|
||
|
|
/* Cannot copy the whole tree */
|
||
|
|
result = -IDS_NOSUBKEY;
|
||
|
|
if(!nId)
|
||
|
|
goto Error1;
|
||
|
|
|
||
|
|
/* Find the longest path that currently exists
|
||
|
|
* return an error if that is the whole string
|
||
|
|
* or a subkey of the key to be copied
|
||
|
|
*/
|
||
|
|
if(*pPath == '\\') {
|
||
|
|
++pPath;
|
||
|
|
if((result=nParent=FindLastExistingKey(0, pPath)) < 0)
|
||
|
|
goto Error1;
|
||
|
|
} else {
|
||
|
|
if((result=nParent=FindLastExistingKey(pPars[nId], pPath)) < 0)
|
||
|
|
goto Error1;
|
||
|
|
}
|
||
|
|
result = -IDS_NOSUBKEY;
|
||
|
|
for(i=nParent; i>=0; i=pPars[i])
|
||
|
|
if(i == nId)
|
||
|
|
goto Error1;
|
||
|
|
result = -IDS_ALREADYEXIST;
|
||
|
|
if(!*pPath)
|
||
|
|
goto Error1;
|
||
|
|
|
||
|
|
/* Find the first key that does not have nId in its parent chain */
|
||
|
|
nKeys = (WORD)SendMessage(hWndIds, LB_GETCOUNT, 0, 0L);
|
||
|
|
for(i=nId+1; i<nKeys; ++i) {
|
||
|
|
for(j=pPars[i]; j>=0 && j!=nId; j=pPars[j])
|
||
|
|
/* do nothing */ ;
|
||
|
|
if(j != nId)
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Add the new keys
|
||
|
|
* hPars should be unlocked in case it needs to grow
|
||
|
|
*/
|
||
|
|
LocalUnlock(hPars);
|
||
|
|
pPars = NULL;
|
||
|
|
if(SDKSetValue(-nParent, pPath, szNull) != ERROR_SUCCESS)
|
||
|
|
goto Error1;
|
||
|
|
nNewKey = (int)SendMessage(hWndIds, LB_GETCURSEL, 0, 0L);
|
||
|
|
|
||
|
|
for(--i, result=nId; i>=nId && result==nId; --i) {
|
||
|
|
HANDLE hPart, hValue;
|
||
|
|
PSTR pPart;
|
||
|
|
|
||
|
|
if(nNewKey <= nId) {
|
||
|
|
int nDiff;
|
||
|
|
|
||
|
|
/* Need to update i and nId if keys were added before them */
|
||
|
|
nDiff = (WORD)SendMessage(hWndIds, LB_GETCOUNT, 0, 0L) - nKeys;
|
||
|
|
nKeys += nDiff;
|
||
|
|
i += nDiff;
|
||
|
|
nId += nDiff;
|
||
|
|
}
|
||
|
|
|
||
|
|
result = -IDS_OUTOFMEMORY;
|
||
|
|
if(!(hPart=MyGetPartialPath(i, nId)))
|
||
|
|
goto Error2;
|
||
|
|
pPart = LocalLock(hPart);
|
||
|
|
if(MyGetValue(i, &hValue) != ERROR_SUCCESS)
|
||
|
|
goto Error3;
|
||
|
|
|
||
|
|
if(SDKSetValue(-nNewKey, pPart, LocalLock(hValue)) != ERROR_SUCCESS)
|
||
|
|
goto Error4;
|
||
|
|
|
||
|
|
result = nId;
|
||
|
|
Error4:
|
||
|
|
LocalUnlock(hValue);
|
||
|
|
LocalFree(hValue);
|
||
|
|
Error3:
|
||
|
|
LocalUnlock(hPart);
|
||
|
|
LocalFree(hPart);
|
||
|
|
Error2:
|
||
|
|
;
|
||
|
|
}
|
||
|
|
|
||
|
|
Error1:
|
||
|
|
if(pPars)
|
||
|
|
LocalUnlock(hPars);
|
||
|
|
return(result);
|
||
|
|
}
|
||
|
|
|