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windows-nt/Source/XPSP1/NT/shell/cpls/desknt5/util.cpp

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2020-09-26 03:20:57 -05:00
/*****************************************************************************\
FILE: util.cpp
DESCRIPTION:
Shared stuff that operates on all classes.
BryanSt 5/30/2000
Copyright (C) Microsoft Corp 2000-2000. All rights reserved.
\*****************************************************************************/
#include "precomp.h"
#pragma hdrstop
#include "util.h"
#include <comdef.h>
/////////////////////////////////////////////////////////////////////
// String Helpers
/////////////////////////////////////////////////////////////////////
HINSTANCE g_hinst; // My instance handle
#ifdef DEBUG
DWORD g_TLSliStopWatchStartHi = 0;
DWORD g_TLSliStopWatchStartLo = 0;
LARGE_INTEGER g_liStopWatchFreq = {0};
#endif // DEBUG
/////////////////////////////////////////////////////////////////////
// Debug Timing Helpers
/////////////////////////////////////////////////////////////////////
#ifdef DEBUG
void DebugStartWatch(void)
{
LARGE_INTEGER liStopWatchStart;
liStopWatchStart.HighPart = PtrToUlong(TlsGetValue(g_TLSliStopWatchStartHi));
liStopWatchStart.LowPart = PtrToUlong(TlsGetValue(g_TLSliStopWatchStartLo));
// ASSERT(!liStopWatchStart.QuadPart); // If you hit this, then the stopwatch is nested.
QueryPerformanceFrequency(&g_liStopWatchFreq);
QueryPerformanceCounter(&liStopWatchStart);
TlsSetValue(g_TLSliStopWatchStartHi, IntToPtr(liStopWatchStart.HighPart));
TlsSetValue(g_TLSliStopWatchStartLo, IntToPtr(liStopWatchStart.LowPart));
}
DWORD DebugStopWatch(void)
{
LARGE_INTEGER liDiff;
LARGE_INTEGER liStopWatchStart;
QueryPerformanceCounter(&liDiff);
liStopWatchStart.HighPart = PtrToUlong(TlsGetValue(g_TLSliStopWatchStartHi));
liStopWatchStart.LowPart = PtrToUlong(TlsGetValue(g_TLSliStopWatchStartLo));
liDiff.QuadPart -= liStopWatchStart.QuadPart;
ASSERT(0 != g_liStopWatchFreq.QuadPart); // I don't like to fault with div 0.
DWORD dwTime = (DWORD)((liDiff.QuadPart * 1000) / g_liStopWatchFreq.QuadPart);
TlsSetValue(g_TLSliStopWatchStartHi, (LPVOID) 0);
TlsSetValue(g_TLSliStopWatchStartLo, (LPVOID) 0);
return dwTime;
}
#endif // DEBUG
/////////////////////////////////////////////////////////////////////
// String Helpers
/////////////////////////////////////////////////////////////////////
#undef SysAllocStringA
BSTR SysAllocStringA(LPCSTR pszStr)
{
BSTR bstrOut = NULL;
if (pszStr)
{
DWORD cchSize = (lstrlenA(pszStr) + 1);
LPWSTR pwszThunkTemp = (LPWSTR) LocalAlloc(LPTR, (sizeof(pwszThunkTemp[0]) * cchSize)); // assumes INFOTIPSIZE number of chars max
if (pwszThunkTemp)
{
SHAnsiToUnicode(pszStr, pwszThunkTemp, cchSize);
bstrOut = SysAllocString(pwszThunkTemp);
LocalFree(pwszThunkTemp);
}
}
return bstrOut;
}
HRESULT HrSysAllocStringA(IN LPCSTR pszSource, OUT BSTR * pbstrDest)
{
HRESULT hr = S_OK;
if (pbstrDest)
{
*pbstrDest = SysAllocStringA(pszSource);
if (pszSource)
{
if (*pbstrDest)
hr = S_OK;
else
hr = E_OUTOFMEMORY;
}
}
return hr;
}
HRESULT HrSysAllocStringW(IN const OLECHAR * pwzSource, OUT BSTR * pbstrDest)
{
HRESULT hr = S_OK;
if (pbstrDest)
{
*pbstrDest = SysAllocString(pwzSource);
if (pwzSource)
{
if (*pbstrDest)
hr = S_OK;
else
hr = E_OUTOFMEMORY;
}
}
return hr;
}
HRESULT BSTRFromStream(IStream * pStream, BSTR * pbstr)
{
STATSTG statStg = {0};
HRESULT hr = pStream->Stat(&statStg, STATFLAG_NONAME);
if (S_OK == hr)
{
DWORD cchSize = statStg.cbSize.LowPart;
*pbstr = SysAllocStringLen(NULL, cchSize + 4);
if (*pbstr)
{
LPSTR pszTemp = (LPSTR) LocalAlloc(LPTR, sizeof(pszTemp[0]) * (cchSize + 4));
if (pszTemp)
{
ULONG cbRead;
hr = pStream->Read(pszTemp, cchSize, &cbRead);
pszTemp[cchSize] = 0;
SHAnsiToUnicode(pszTemp, *pbstr, (cchSize + 1));
LocalFree(pszTemp);
}
else
hr = E_OUTOFMEMORY;
}
else
hr = E_OUTOFMEMORY;
}
return hr;
}
// --------------------------------------------------------------------------------
// HrCopyStream
// --------------------------------------------------------------------------------
HRESULT HrCopyStream(LPSTREAM pstmIn, LPSTREAM pstmOut, ULONG *pcb)
{
HRESULT hr = S_OK;
BYTE buf[4096];
ULONG cbRead=0,
cbTotal=0;
do
{
hr = pstmIn->Read(buf, sizeof(buf), &cbRead);
if (FAILED(hr) || cbRead == 0)
{
break;
}
hr = pstmOut->Write(buf, cbRead, NULL);
if (FAILED(hr))
{
break;
}
cbTotal += cbRead;
}
while (cbRead == sizeof (buf));
if (pcb && SUCCEEDED(hr))
*pcb = cbTotal;
return hr;
}
HRESULT CreateBStrVariantFromWStr(IN OUT VARIANT * pvar, IN LPCWSTR pwszString)
{
HRESULT hr = E_INVALIDARG;
if (pvar)
{
pvar->bstrVal = SysAllocString(pwszString);
if (pvar->bstrVal)
{
pvar->vt = VT_BSTR;
hr = S_OK;
}
else
{
pvar->vt = VT_EMPTY;
hr = E_OUTOFMEMORY;
}
}
return hr;
}
HRESULT HrSysAllocString(IN const OLECHAR * pwzSource, OUT BSTR * pbstrDest)
{
HRESULT hr = S_OK;
if (pbstrDest)
{
*pbstrDest = SysAllocString(pwzSource);
if (pwzSource)
{
if (*pbstrDest)
hr = S_OK;
else
hr = E_OUTOFMEMORY;
}
}
return hr;
}
HRESULT UnEscapeHTML(BSTR bstrEscaped, BSTR * pbstrUnEscaped)
{
HRESULT hr = HrSysAllocString(bstrEscaped, pbstrUnEscaped);
if (SUCCEEDED(hr))
{
// Find %xx and replace.
LPWSTR pwszEscapedSequence = StrChrW(*pbstrUnEscaped, CH_HTML_ESCAPE);
WCHAR wzEscaped[5] = L"0xXX";
while (pwszEscapedSequence && (3 <= lstrlenW(pwszEscapedSequence)))
{
int nCharCode;
wzEscaped[2] = pwszEscapedSequence[1];
wzEscaped[3] = pwszEscapedSequence[2];
StrToIntExW(wzEscaped, STIF_SUPPORT_HEX, &nCharCode);
// Replace the '%' with the real char.
pwszEscapedSequence[0] = (WCHAR) nCharCode;
pwszEscapedSequence = CharNextW(pwszEscapedSequence); // Skip pasted the replaced char.
// Over write the 0xXX value.
StrCpyW(pwszEscapedSequence, &pwszEscapedSequence[2]);
// Next...
pwszEscapedSequence = StrChrW(pwszEscapedSequence, CH_HTML_ESCAPE);
}
}
return hr;
}
/*****************************************************************************\
PARAMETERS:
If fBoolean is TRUE, return "True" else "False".
HRESULT BOOLToString(BOOL fBoolean, BSTR * pbstrValue)
{
HRESULT hr = E_INVALIDARG;
if (pbstrValue)
{
LPCWSTR pwszValue;
*pbstrValue = NULL;
if (TRUE == fBoolean)
{
pwszValue = SZ_QUERYDATA_TRUE;
}
else
{
pwszValue = SZ_QUERYDATA_FALSE;
}
hr = HrSysAllocString(pwszValue, pbstrValue);
}
return hr;
}
\*****************************************************************************/
#define SZ_VALID_XML L"<?xml"
/////////////////////////////////////////////////////////////////////
// XML Related Helpers
/////////////////////////////////////////////////////////////////////
HRESULT XMLDOMFromBStr(BSTR bstrXML, IXMLDOMDocument ** ppXMLDoc)
{
HRESULT hr = E_FAIL;
// We don't even want to
// bother passing it to the XML DOM because they throw exceptions. These
// are caught and handled but we still don't want this to happen. We try
// to get XML from the web server, but we get HTML instead if the web server
// fails or the web proxy returns HTML if the site isn't found.
if (!StrCmpNIW(SZ_VALID_XML, bstrXML, (ARRAYSIZE(SZ_VALID_XML) - 1)))
{
hr = CoCreateInstance(CLSID_DOMDocument, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARG(IXMLDOMDocument, ppXMLDoc));
if (SUCCEEDED(hr))
{
VARIANT_BOOL fIsSuccessful;
// NOTE: This will throw an 0xE0000001 exception in MSXML if the XML is invalid.
// This is not good but there isn't much we can do about it. The problem is
// that web proxies give back HTML which fails to parse.
hr = (*ppXMLDoc)->loadXML(bstrXML, &fIsSuccessful);
if (SUCCEEDED(hr))
{
if (VARIANT_TRUE != fIsSuccessful)
{
hr = E_FAIL;
}
}
}
if (FAILED(hr))
{
(*ppXMLDoc)->Release();
*ppXMLDoc = NULL;
}
}
return hr;
}
HRESULT XMLBStrFromDOM(IXMLDOMDocument * pXMLDoc, BSTR * pbstrXML)
{
IStream * pStream;
HRESULT hr = pXMLDoc->QueryInterface(IID_PPV_ARG(IStream, &pStream)); // check the return value
if (S_OK == hr)
{
hr = BSTRFromStream(pStream, pbstrXML);
pStream->Release();
}
return hr;
}
HRESULT XMLAppendElement(IXMLDOMElement * pXMLElementRoot, IXMLDOMElement * pXMLElementToAppend)
{
IXMLDOMNode * pXMLNodeRoot;
HRESULT hr = pXMLElementRoot->QueryInterface(IID_PPV_ARG(IXMLDOMNode, &pXMLNodeRoot));
if (EVAL(SUCCEEDED(hr)))
{
IXMLDOMNode * pXMLNodeToAppend;
hr = pXMLElementToAppend->QueryInterface(IID_PPV_ARG(IXMLDOMNode, &pXMLNodeToAppend));
if (EVAL(SUCCEEDED(hr)))
{
hr = pXMLNodeRoot->appendChild(pXMLNodeToAppend, NULL);
pXMLNodeToAppend->Release();
}
pXMLNodeRoot->Release();
}
return hr;
}
HRESULT XMLDOMFromFile(IN LPCWSTR pwzPath, OUT IXMLDOMDocument ** ppXMLDOMDoc)
{
HRESULT hr = CoCreateInstance(CLSID_DOMDocument, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARG(IXMLDOMDocument, ppXMLDOMDoc));
if (SUCCEEDED(hr))
{
VARIANT xmlSource;
xmlSource.vt = VT_BSTR;
xmlSource.bstrVal = SysAllocString(pwzPath);
if (xmlSource.bstrVal)
{
VARIANT_BOOL fIsSuccessful = VARIANT_TRUE;
hr = (*ppXMLDOMDoc)->load(xmlSource, &fIsSuccessful);
if ((S_FALSE == hr) || (VARIANT_FALSE == fIsSuccessful))
{
// This happens when the file isn't a valid XML file.
hr = E_FAIL;
}
VariantClear(&xmlSource);
}
if (FAILED(hr))
{
ATOMICRELEASE(*ppXMLDOMDoc);
}
}
return hr;
}
HRESULT XMLElem_VerifyTagName(IN IXMLDOMElement * pXMLElementMessage, IN LPCWSTR pwszTagName)
{
BSTR bstrTagName;
HRESULT hr = pXMLElementMessage->get_tagName(&bstrTagName);
if (S_FALSE == hr)
{
hr = E_FAIL;
}
else if (SUCCEEDED(hr))
{
if (!bstrTagName || !pwszTagName || StrCmpIW(bstrTagName, pwszTagName))
{
hr = E_FAIL;
}
SysFreeString(bstrTagName);
}
return hr;
}
HRESULT XMLElem_GetElementsByTagName(IN IXMLDOMElement * pXMLElementMessage, IN LPCWSTR pwszTagName, OUT IXMLDOMNodeList ** ppNodeList)
{
BSTR bstrTagName = SysAllocString(pwszTagName);
HRESULT hr = E_OUTOFMEMORY;
*ppNodeList = NULL;
if (bstrTagName)
{
hr = pXMLElementMessage->getElementsByTagName(bstrTagName, ppNodeList);
if (S_FALSE == hr)
{
hr = E_FAIL;
}
SysFreeString(bstrTagName);
}
return hr;
}
HRESULT XMLNode_GetAttributeValue(IN IXMLDOMNode * pXMLNode, IN LPCWSTR pwszAttributeName, OUT BSTR * pbstrValue)
{
BSTR bstrAttributeName = SysAllocString(pwszAttributeName);
HRESULT hr = E_OUTOFMEMORY;
*pbstrValue = NULL;
if (bstrAttributeName)
{
IXMLDOMNamedNodeMap * pNodeAttributes;
hr = pXMLNode->get_attributes(&pNodeAttributes);
if (S_FALSE == hr) hr = E_FAIL;
if (SUCCEEDED(hr))
{
IXMLDOMNode * pTypeAttribute;
hr = pNodeAttributes->getNamedItem(bstrAttributeName, &pTypeAttribute);
if (S_FALSE == hr) hr = HRESULT_FROM_WIN32(ERROR_NOT_FOUND);
if (SUCCEEDED(hr))
{
VARIANT varAtribValue = {0};
hr = pTypeAttribute->get_nodeValue(&varAtribValue);
if (S_FALSE == hr) hr = E_FAIL;
if (SUCCEEDED(hr) && (VT_BSTR == varAtribValue.vt))
{
*pbstrValue = SysAllocString(varAtribValue.bstrVal);
}
VariantClear(&varAtribValue);
pTypeAttribute->Release();
}
pNodeAttributes->Release();
}
SysFreeString(bstrAttributeName);
}
return hr;
}
HRESULT XMLNode_GetChildTag(IN IXMLDOMNode * pXMLNode, IN LPCWSTR pwszTagName, OUT IXMLDOMNode ** ppChildNode)
{
HRESULT hr = E_INVALIDARG;
*ppChildNode = NULL;
if (pXMLNode)
{
IXMLDOMElement * pXMLElement;
hr = pXMLNode->QueryInterface(IID_PPV_ARG(IXMLDOMElement, &pXMLElement));
if (SUCCEEDED(hr))
{
IXMLDOMNodeList * pNodeList;
hr = XMLElem_GetElementsByTagName(pXMLElement, pwszTagName, &pNodeList);
if (SUCCEEDED(hr))
{
hr = XMLNodeList_GetChild(pNodeList, 0, ppChildNode);
pNodeList->Release();
}
pXMLElement->Release();
}
}
return hr;
}
HRESULT XMLNode_GetTagText(IN IXMLDOMNode * pXMLNode, OUT BSTR * pbstrValue)
{
DOMNodeType nodeType = NODE_TEXT;
HRESULT hr = pXMLNode->get_nodeType(&nodeType);
*pbstrValue = NULL;
if (S_FALSE == hr) hr = E_FAIL;
if (SUCCEEDED(hr))
{
if (NODE_TEXT == nodeType)
{
VARIANT varAtribValue = {0};
hr = pXMLNode->get_nodeValue(&varAtribValue);
if (S_FALSE == hr) hr = E_FAIL;
if (SUCCEEDED(hr) && (VT_BSTR == varAtribValue.vt))
{
*pbstrValue = SysAllocString(varAtribValue.bstrVal);
}
VariantClear(&varAtribValue);
}
else
{
hr = pXMLNode->get_text(pbstrValue);
}
}
return hr;
}
HRESULT XMLNodeList_GetChild(IN IXMLDOMNodeList * pNodeList, IN DWORD dwIndex, OUT IXMLDOMNode ** ppXMLChildNode)
{
HRESULT hr = pNodeList->get_item(dwIndex, ppXMLChildNode);
if (S_FALSE == hr)
{
hr = HRESULT_FROM_WIN32(ERROR_NOT_FOUND);
}
return hr;
}
HRESULT XMLNode_GetChildTagTextValue(IN IXMLDOMNode * pXMLNode, IN BSTR bstrChildTag, OUT BSTR * pbstrValue)
{
IXMLDOMNode * pNodeType;
HRESULT hr = XMLNode_GetChildTag(pXMLNode, bstrChildTag, &pNodeType);
if (SUCCEEDED(hr))
{
hr = XMLNode_GetTagText(pNodeType, pbstrValue);
pNodeType->Release();
}
return hr;
}
HRESULT XMLNode_GetChildTagTextValueToBool(IN IXMLDOMNode * pXMLNode, IN BSTR bstrChildTag, OUT BOOL * pfBoolean)
{
BSTR bstr;
HRESULT hr = XMLNode_GetChildTagTextValue(pXMLNode, bstrChildTag, &bstr);
if (SUCCEEDED(hr))
{
if (!StrCmpIW(bstr, L"on"))
{
*pfBoolean = TRUE;
}
else
{
*pfBoolean = FALSE;
}
SysFreeString(bstr);
}
return hr;
}
BOOL XML_IsChildTagTextEqual(IN IXMLDOMNode * pXMLNode, IN BSTR bstrChildTag, IN BSTR bstrText)
{
BOOL fIsChildTagTextEqual = FALSE;
BSTR bstrChildText;
HRESULT hr = XMLNode_GetChildTagTextValue(pXMLNode, bstrChildTag, &bstrChildText);
if (SUCCEEDED(hr))
{
// Is this <TYPE>email</TYPE>?
if (!StrCmpIW(bstrChildText, bstrText))
{
// No, so keep looking.
fIsChildTagTextEqual = TRUE;
}
SysFreeString(bstrChildText);
}
return fIsChildTagTextEqual;
}
#define EMPTYSTR_FOR_NULL(str) ((!str) ? TEXT("") : (str))
/////////////////////////////////////////////////////////////////////
// File System Wrapping Helpers
/////////////////////////////////////////////////////////////////////
HRESULT CreateFileHrWrap(LPCTSTR lpFileName, DWORD dwDesiredAccess, DWORD dwShareMode, LPSECURITY_ATTRIBUTES lpSecurityAttributes,
DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes, HANDLE hTemplateFile, HANDLE * phFileHandle)
{
HRESULT hr = S_OK;
HANDLE hTemp = NULL;
DWORD dwError = 0;
if (!phFileHandle)
phFileHandle = &hTemp;
*phFileHandle = CreateFile(lpFileName, dwDesiredAccess, dwShareMode, lpSecurityAttributes, dwCreationDisposition, dwFlagsAndAttributes, hTemplateFile);
if (INVALID_HANDLE_VALUE == *phFileHandle)
{
dwError = GetLastError();
hr = HRESULT_FROM_WIN32(dwError);
}
if (hTemp)
CloseHandle(hTemp);
return hr;
}
HRESULT WriteFileWrap(HANDLE hFile, LPCVOID lpBuffer, DWORD nNumberOfBytesToWrite, LPDWORD lpNumberOfBytesWritten, LPOVERLAPPED lpOverlapped)
{
HRESULT hr = S_OK;
DWORD dwError = 0;
if (!WriteFile(hFile, lpBuffer, nNumberOfBytesToWrite, lpNumberOfBytesWritten, lpOverlapped))
{
dwError = GetLastError();
hr = HRESULT_FROM_WIN32(dwError);
}
return hr;
}
HRESULT DeleteFileHrWrap(LPCWSTR pszPath)
{
HRESULT hr = S_OK;
DWORD dwError = 0;
if (!DeleteFileW(pszPath))
{
dwError = GetLastError();
hr = HRESULT_FROM_WIN32(dwError);
}
return hr;
}
HRESULT GetPrivateProfileStringHrWrap(LPCWSTR lpAppName, LPCWSTR lpKeyName, LPCWSTR lpDefault, LPWSTR lpReturnedString, DWORD nSize, LPCWSTR lpFileName)
{
HRESULT hr = S_OK;
DWORD chGot = GetPrivateProfileStringW(lpAppName, lpKeyName, lpDefault, lpReturnedString, nSize, lpFileName);
// What else can indicate an error value?
if (0 == chGot)
{
hr = HRESULT_FROM_WIN32(GetLastError());
if (SUCCEEDED(hr))
hr = E_FAIL;
}
return hr;
}
/////////////////////////////////////////////////////////////////////
// Registry Helpers
/////////////////////////////////////////////////////////////////////
HRESULT HrRegOpenKeyEx(HKEY hKey, LPCTSTR lpSubKey, DWORD ulOptions, REGSAM samDesired, PHKEY phkResult)
{
DWORD dwError = RegOpenKeyEx(hKey, lpSubKey, ulOptions, samDesired, phkResult);
return HRESULT_FROM_WIN32(dwError);
}
HRESULT HrRegCreateKeyEx(HKEY hKey, LPCTSTR lpSubKey, DWORD Reserved, LPTSTR lpClass, DWORD dwOptions,
REGSAM samDesired, LPSECURITY_ATTRIBUTES lpSecurityAttributes, PHKEY phkResult, LPDWORD lpdwDisposition)
{
DWORD dwError = RegCreateKeyEx(hKey, lpSubKey, Reserved, lpClass, dwOptions, samDesired, lpSecurityAttributes, phkResult, lpdwDisposition);
return HRESULT_FROM_WIN32(dwError);
}
HRESULT HrRegQueryValueEx(IN HKEY hKey, IN LPCTSTR lpValueName, IN LPDWORD lpReserved, IN LPDWORD lpType, IN LPBYTE lpData, IN LPDWORD lpcbData)
{
DWORD dwError = RegQueryValueEx(hKey, lpValueName, lpReserved, lpType, lpData, lpcbData);
return HRESULT_FROM_WIN32(dwError);
}
HRESULT HrRegSetValueEx(IN HKEY hKey, IN LPCTSTR lpValueName, IN DWORD dwReserved, IN DWORD dwType, IN CONST BYTE *lpData, IN DWORD cbData)
{
DWORD dwError = RegSetValueEx(hKey, lpValueName, dwReserved, dwType, lpData, cbData);
return HRESULT_FROM_WIN32(dwError);
}
HRESULT HrRegEnumKey(HKEY hKey, DWORD dwIndex, LPTSTR lpName, DWORD cbName)
{
DWORD dwError = RegEnumKey(hKey, dwIndex, lpName, cbName);
return HRESULT_FROM_WIN32(dwError);
}
HRESULT HrRegEnumValue(HKEY hKey, DWORD dwIndex, LPTSTR lpValueName, LPDWORD lpcValueName, LPDWORD lpReserved,
LPDWORD lpType, LPBYTE lpData, LPDWORD lpcbData)
{
DWORD dwError = RegEnumValue(hKey, dwIndex, lpValueName, lpcValueName, lpReserved, lpType, lpData, lpcbData);
return HRESULT_FROM_WIN32(dwError);
}
HRESULT HrRegQueryInfoKey(HKEY hKey, LPTSTR lpClass, LPDWORD lpcClass, LPDWORD lpReserved, LPDWORD lpcSubKeys, LPDWORD lpcMaxSubKeyLen,
LPDWORD lpcMaxClassLen, LPDWORD lpcValues, LPDWORD lpcMaxValueNameLen, LPDWORD lpcMaxValueLen, LPDWORD lpcbSecurityDescriptor, PFILETIME lpftLastWriteTime)
{
DWORD dwError = RegQueryInfoKey(hKey, lpClass, lpcClass, lpReserved, lpcSubKeys, lpcMaxSubKeyLen,
lpcMaxClassLen, lpcValues, lpcMaxValueNameLen, lpcMaxValueLen, lpcbSecurityDescriptor, lpftLastWriteTime);
return HRESULT_FROM_WIN32(dwError);
}
HRESULT HrBStrRegQueryValue(IN HKEY hKey, IN LPCTSTR lpValueName, OUT BSTR * pbstr)
{
TCHAR szValue[MAX_PATH];
DWORD dwType;
DWORD cbSize = sizeof(szValue);
HRESULT hr = HrRegQueryValueEx(hKey, lpValueName, 0, &dwType, (BYTE *)szValue, &cbSize);
*pbstr = NULL;
if (SUCCEEDED(hr))
{
hr = HrSysAllocStringW(szValue, pbstr);
}
return hr;
}
HRESULT HrSHGetValue(IN HKEY hKey, IN LPCTSTR pszSubKey, OPTIONAL IN LPCTSTR pszValue, OPTIONAL OUT LPDWORD pdwType,
OPTIONAL OUT LPVOID pvData, OPTIONAL OUT LPDWORD pcbData)
{
DWORD dwError = SHGetValue(hKey, pszSubKey, pszValue, pdwType, pvData, pcbData);
return HRESULT_FROM_WIN32(dwError);
}
HRESULT HrSHSetValue(IN HKEY hkey, IN LPCTSTR pszSubKey, OPTIONAL IN LPCTSTR pszValue, DWORD dwType, OPTIONAL OUT LPVOID pvData, IN DWORD cbData)
{
DWORD dwError = SHSetValue(hkey, pszSubKey, pszValue, dwType, pvData, cbData);
return HRESULT_FROM_WIN32(dwError);
}
HRESULT HrBStrRegSetValue(IN HKEY hKey, IN LPCTSTR lpValueName, OUT BSTR bstr)
{
DWORD cbSize = ((lstrlenW(bstr) + 1) * sizeof(bstr[0]));
return HrRegSetValueEx(hKey, lpValueName, 0, REG_SZ, (BYTE *)bstr, cbSize);
}
/////////////////////////////////////////////////////////////////////
// Palette Helpers
/////////////////////////////////////////////////////////////////////
COLORREF GetNearestPaletteColor(HPALETTE hpal, COLORREF rgb)
{
PALETTEENTRY pe;
GetPaletteEntries(hpal, GetNearestPaletteIndex(hpal, rgb & 0x00FFFFFF), 1, &pe);
return RGB(pe.peRed, pe.peGreen, pe.peBlue);
}
BOOL IsPaletteColor(HPALETTE hpal, COLORREF rgb)
{
return GetNearestPaletteColor(hpal, rgb) == (rgb & 0xFFFFFF);
}
/////////////////////////////////////////////////////////////////////
// Other Helpers
/////////////////////////////////////////////////////////////////////
HRESULT HrRewindStream(IStream * pstm)
{
LARGE_INTEGER liOrigin = {0,0};
return pstm->Seek(liOrigin, STREAM_SEEK_SET, NULL);
}
#define SET_FLAG(dwAllFlags, dwFlag) ((dwAllFlags) |= (dwFlag))
#define IS_FLAG_SET(dwAllFlags, dwFlag) ((BOOL)((dwAllFlags) & (dwFlag)))
// PERFPERF
// This routine used to copy 512 bytes at a time, but that had a major negative perf impact.
// I have measured a 2-3x speedup in copy times by increasing this buffer size to 16k.
// Yes, its a lot of stack, but it is memory well spent. -saml
#define STREAM_COPY_BUF_SIZE 16384
#define STREAM_PROGRESS_INTERVAL (100*1024/STREAM_COPY_BUF_SIZE) // display progress after this many blocks
HRESULT StreamCopyWithProgress(IStream *pstmFrom, IStream *pstmTo, ULARGE_INTEGER cb, PROGRESSINFO * ppi)
{
BYTE buf[STREAM_COPY_BUF_SIZE];
ULONG cbRead;
HRESULT hres = NOERROR;
int nSection = 0; // How many buffer sizes have we copied?
ULARGE_INTEGER uliNewCompleted;
if (ppi)
{
uliNewCompleted.QuadPart = ppi->uliBytesCompleted.QuadPart;
}
while (cb.QuadPart)
{
if (ppi && ppi->ppd)
{
if (0 == (nSection % STREAM_PROGRESS_INTERVAL))
{
EVAL(SUCCEEDED(ppi->ppd->SetProgress64(uliNewCompleted.QuadPart, ppi->uliBytesTotal.QuadPart)));
if (ppi->ppd->HasUserCancelled())
{
hres = HRESULT_FROM_WIN32(ERROR_CANCELLED);
break;
}
}
}
hres = pstmFrom->Read(buf, min(cb.LowPart, SIZEOF(buf)), &cbRead);
if (FAILED(hres) || (cbRead == 0))
{
// sometimes we are just done.
if (SUCCEEDED(hres))
hres = S_OK;
break;
}
if (ppi)
{
uliNewCompleted.QuadPart += (ULONGLONG) cbRead;
}
cb.QuadPart -= cbRead;
hres = pstmTo->Write(buf, cbRead, &cbRead);
if (FAILED(hres) || (cbRead == 0))
break;
nSection++;
}
return hres;
}
/*
// These are needed for COM/COM+ interop
void __stdcall
_com_raise_error(HRESULT hr, IErrorInfo* perrinfo) throw(_com_error)
{
throw _com_error(hr, perrinfo);
}
void __stdcall
_com_issue_error(HRESULT hr) throw(_com_error)
{
_com_raise_error(hr, NULL);
}
void __stdcall
_com_issue_errorex(HRESULT hr, IUnknown* punk, REFIID riid) throw(_com_error)
{
IErrorInfo* perrinfo = NULL;
if (punk == NULL) {
goto exeunt;
}
ISupportErrorInfo* psei;
if (FAILED(punk->QueryInterface(__uuidof(ISupportErrorInfo),
(void**)&psei))) {
goto exeunt;
}
HRESULT hrSupportsErrorInfo;
hrSupportsErrorInfo = psei->InterfaceSupportsErrorInfo(riid);
psei->Release();
if (hrSupportsErrorInfo != S_OK) {
goto exeunt;
}
if (GetErrorInfo(0, &perrinfo) != S_OK) {
perrinfo = NULL;
}
exeunt:
_com_raise_error(hr, perrinfo);
}
*/
// needed by smtpserv:
HRESULT HrByteToStream(LPSTREAM *lppstm, LPBYTE lpb, ULONG cb)
{
// Locals
HRESULT hr=S_OK;
LARGE_INTEGER liOrigin = {0,0};
// Create H Global Stream
hr = CreateStreamOnHGlobal (NULL, TRUE, lppstm);
if (FAILED(hr))
goto exit;
// Write String
hr = (*lppstm)->Write (lpb, cb, NULL);
if (FAILED(hr))
goto exit;
// Rewind the steam
hr = (*lppstm)->Seek(liOrigin, STREAM_SEEK_SET, NULL);
if (FAILED(hr))
goto exit;
exit:
// Done
return hr;
}
const char szDayOfWeekArray[7][4] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" } ;
const char szMonthOfYearArray[12][4] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" } ;
void GetDateString(char * szSentDateString, ULONG stringLen)
{
// Sent Date
SYSTEMTIME stSentTime;
CHAR szMonth[10], szWeekDay[12] ;
GetSystemTime(&stSentTime);
lstrcpynA(szWeekDay, szDayOfWeekArray[stSentTime.wDayOfWeek], ARRAYSIZE(szWeekDay)) ;
lstrcpynA(szMonth, szMonthOfYearArray[stSentTime.wMonth-1], ARRAYSIZE(szMonth)) ;
wnsprintfA(szSentDateString, stringLen, "%s, %u %s %u %2d:%02d:%02d ", (LPSTR) szWeekDay, stSentTime.wDay,
(LPSTR) szMonth, stSentTime.wYear, stSentTime.wHour,
stSentTime.wMinute, stSentTime.wSecond) ;
}
/*****************************************************************************\
PARAMETERS:
RETURN: Win32 HRESULT (Not Script Safe).
SUCCEEDED(hr) for OK and out params filled in.
FAILED(hr) for all errors.
\*****************************************************************************/
HRESULT GetQueryStringValue(BSTR bstrURL, LPCWSTR pwszValue, LPWSTR pwszData, int cchSizeData)
{
HRESULT hr = E_FAIL;
LPCWSTR pwszIterate = bstrURL;
pwszIterate = StrChrW(pwszIterate, L'?'); // Advance to Query part of URL.
while (pwszIterate && pwszIterate[0])
{
pwszIterate++; // Start at first value
LPCWSTR pwszEndOfValue = StrChrW(pwszIterate, L'=');
if (!pwszEndOfValue)
break;
int cchValueSize = (INT)(UINT)(pwszEndOfValue - pwszIterate);
if (0 == StrCmpNIW(pwszValue, pwszIterate, cchValueSize))
{
int cchSizeToCopy = cchSizeData; // Copy rest of line by default.
pwszIterate = StrChrW(pwszEndOfValue, L'&');
if (pwszIterate)
{
cchSizeToCopy = (INT)(UINT)(pwszIterate - pwszEndOfValue);
}
// It matches, now get the Data.
StrCpyNW(pwszData, (pwszEndOfValue + 1), cchSizeToCopy);
hr = S_OK;
break;
}
else
{
pwszIterate = StrChrW(pwszEndOfValue, L'&');
}
}
return hr;
}
BOOL _InitComCtl32()
{
static BOOL fInitialized = FALSE;
if (!fInitialized)
{
INITCOMMONCONTROLSEX icc;
icc.dwSize = sizeof(INITCOMMONCONTROLSEX);
icc.dwICC = (ICC_ANIMATE_CLASS | ICC_USEREX_CLASSES | ICC_COOL_CLASSES | ICC_INTERNET_CLASSES | ICC_PAGESCROLLER_CLASS | ICC_NATIVEFNTCTL_CLASS | ICC_LISTVIEW_CLASSES);
fInitialized = InitCommonControlsEx(&icc);
}
return fInitialized;
}
HRESULT HrShellExecute(HWND hwnd, LPCTSTR lpVerb, LPCTSTR lpFile, LPCTSTR lpParameters, LPCTSTR lpDirectory, INT nShowCmd)
{
ULARGE_INTEGER uiResult;
uiResult.QuadPart = (ULONGLONG) ShellExecute(hwnd, lpVerb, lpFile, lpParameters, lpDirectory, nShowCmd);
if (32 < uiResult.QuadPart)
{
uiResult.LowPart = ERROR_SUCCESS;
}
return HRESULT_FROM_WIN32(uiResult.LowPart);
}
HRESULT StrReplaceToken(IN LPCTSTR pszToken, IN LPCTSTR pszReplaceValue, IN LPTSTR pszString, IN DWORD cchSize)
{
HRESULT hr = S_OK;
LPTSTR pszTempLastHalf = NULL;
LPTSTR pszNextToken = pszString;
while (pszNextToken = StrStrI(pszNextToken, pszToken))
{
// We found one.
LPTSTR pszPastToken = pszNextToken + lstrlen(pszToken);
Str_SetPtr(&pszTempLastHalf, pszPastToken); // Keep a copy because we will overwrite it.
pszNextToken[0] = 0; // Remove the rest of the string.
StrCatBuff(pszString, pszReplaceValue, cchSize);
StrCatBuff(pszString, pszTempLastHalf, cchSize);
pszNextToken += lstrlen(pszReplaceValue);
}
Str_SetPtr(&pszTempLastHalf, NULL);
return hr;
}
BOOL IUnknown_CompareCLSID(IN IUnknown * punk, IN CLSID clsid)
{
BOOL fIsEqual = FALSE;
if (punk)
{
CLSID clsidPageID;
HRESULT hr = IUnknown_GetClassID(punk, &clsidPageID);
if (SUCCEEDED(hr) && IsEqualCLSID(clsidPageID, clsid))
{
fIsEqual = TRUE;
}
}
return fIsEqual;
}
HRESULT IEnumUnknown_FindCLSID(IN IUnknown * punk, IN CLSID clsid, OUT IUnknown ** ppunkFound)
{
HRESULT hr = E_INVALIDARG;
if (punk && ppunkFound)
{
IEnumUnknown * pEnum;
*ppunkFound = NULL;
hr = punk->QueryInterface(IID_PPV_ARG(IEnumUnknown, &pEnum));
if (SUCCEEDED(hr))
{
IUnknown * punkToTry;
ULONG ulFetched;
while (SUCCEEDED(pEnum->Next(1, &punkToTry, &ulFetched)) &&
(1 == ulFetched))
{
if (IUnknown_CompareCLSID(punkToTry, clsid))
{
*ppunkFound = punkToTry;
break;
}
punkToTry->Release();
}
pEnum->Release();
}
}
return hr;
}
HRESULT GetPageByCLSID(IUnknown * punkSite, const GUID * pClsid, IPropertyBag ** ppPropertyBag)
{
HRESULT hr = E_FAIL;
*ppPropertyBag = NULL;
if (punkSite)
{
IThemeUIPages * pThemeUI;
hr = punkSite->QueryInterface(IID_PPV_ARG(IThemeUIPages, &pThemeUI));
if (SUCCEEDED(hr))
{
IEnumUnknown * pEnumUnknown;
hr = pThemeUI->GetBasePagesEnum(&pEnumUnknown);
if (SUCCEEDED(hr))
{
IUnknown * punk;
// This may not exit due to policy
hr = IEnumUnknown_FindCLSID(pEnumUnknown, *pClsid, &punk);
if (SUCCEEDED(hr))
{
hr = punk->QueryInterface(IID_PPV_ARG(IPropertyBag, ppPropertyBag));
punk->Release();
}
pEnumUnknown->Release();
}
pThemeUI->Release();
}
}
return hr;
}
Reference in a new issue Copy permalink