Author: gadamopoulos
Date: Sun Apr 21 14:42:16 2013
New Revision: 58809
URL: http://svn.reactos.org/svn/reactos?rev=58809&view=rev
Log:
[desk.cpl]
- Add missing file
- In desk.cpl we now use RegLoadMUIStringW however this function is introduced
in vista. Since we don't have an official policy what to do in such cases I
chose to create a local copy of this function here becasue it also lets us test
desk.cpl in xp
Added:
trunk/reactos/dll/cpl/desk/muireg.c (with props)
Added: trunk/reactos/dll/cpl/desk/muireg.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/cpl/desk/muireg.c?rev=58809&view=auto
==============================================================================
--- trunk/reactos/dll/cpl/desk/muireg.c (added)
+++ trunk/reactos/dll/cpl/desk/muireg.c [iso-8859-1] Sun Apr 21 14:42:16 2013
@@ -1,0 +1,144 @@
+#include "desk.h"
+
+/******************************************************************************
+ * load_string [Internal]
+ *
+ * This is basically a copy of user32/resource.c's LoadStringW. Necessary to
+ * avoid importing user32, which is higher level than advapi32. Helper for
+ * RegLoadMUIString.
+ */
+static int load_string(HINSTANCE hModule, UINT resId, LPWSTR pwszBuffer, INT
cMaxChars)
+{
+ HGLOBAL hMemory;
+ HRSRC hResource;
+ WCHAR *pString;
+ int idxString;
+
+ /* Negative values have to be inverted. */
+ if (HIWORD(resId) == 0xffff)
+ resId = (UINT)(-((INT)resId));
+
+ /* Load the resource into memory and get a pointer to it. */
+ hResource = FindResourceW(hModule, MAKEINTRESOURCEW(LOWORD(resId >> 4) +
1), (LPWSTR)RT_STRING);
+ if (!hResource) return 0;
+ hMemory = LoadResource(hModule, hResource);
+ if (!hMemory) return 0;
+ pString = LockResource(hMemory);
+
+ /* Strings are length-prefixed. Lowest nibble of resId is an index. */
+ idxString = resId & 0xf;
+ while (idxString--) pString += *pString + 1;
+
+ /* If no buffer is given, return length of the string. */
+ if (!pwszBuffer) return *pString;
+
+ /* Else copy over the string, respecting the buffer size. */
+ cMaxChars = (*pString < cMaxChars) ? *pString : (cMaxChars - 1);
+ if (cMaxChars >= 0)
+ {
+ memcpy(pwszBuffer, pString+1, cMaxChars * sizeof(WCHAR));
+ pwszBuffer[cMaxChars] = L'\0';
+ }
+
+ return cMaxChars;
+}
+
+
+/************************************************************************
+ * RegLoadMUIStringW
+ *
+ * @implemented
+ */
+LONG
+RegLoadMUIStringW(IN HKEY hKey,
+ IN LPCWSTR pszValue OPTIONAL,
+ OUT LPWSTR pszOutBuf,
+ IN DWORD cbOutBuf,
+ OUT LPDWORD pcbData OPTIONAL,
+ IN DWORD Flags,
+ IN LPCWSTR pszDirectory OPTIONAL)
+{
+ DWORD dwValueType, cbData;
+ LPWSTR pwszTempBuffer = NULL, pwszExpandedBuffer = NULL;
+ LONG result;
+
+ /* Parameter sanity checks. */
+ if (!hKey || !pszOutBuf)
+ return ERROR_INVALID_PARAMETER;
+
+ if (pszDirectory && *pszDirectory)
+ {
+ //FIXME("BaseDir parameter not yet supported!\n");
+ return ERROR_INVALID_PARAMETER;
+ }
+
+ /* Check for value existence and correctness of it's type, allocate a
buffer and load it. */
+ result = RegQueryValueExW(hKey, pszValue, NULL, &dwValueType, NULL,
&cbData);
+ if (result != ERROR_SUCCESS) goto cleanup;
+ if (!(dwValueType == REG_SZ || dwValueType == REG_EXPAND_SZ) || !cbData)
+ {
+ result = ERROR_FILE_NOT_FOUND;
+ goto cleanup;
+ }
+ pwszTempBuffer = HeapAlloc(GetProcessHeap(), 0, cbData);
+ if (!pwszTempBuffer)
+ {
+ result = ERROR_NOT_ENOUGH_MEMORY;
+ goto cleanup;
+ }
+ result = RegQueryValueExW(hKey, pszValue, NULL, &dwValueType,
(LPBYTE)pwszTempBuffer, &cbData);
+ if (result != ERROR_SUCCESS) goto cleanup;
+
+ /* Expand environment variables, if appropriate, or copy the original
string over. */
+ if (dwValueType == REG_EXPAND_SZ)
+ {
+ cbData = ExpandEnvironmentStringsW(pwszTempBuffer, NULL, 0) *
sizeof(WCHAR);
+ if (!cbData) goto cleanup;
+ pwszExpandedBuffer = HeapAlloc(GetProcessHeap(), 0, cbData);
+ if (!pwszExpandedBuffer)
+ {
+ result = ERROR_NOT_ENOUGH_MEMORY;
+ goto cleanup;
+ }
+ ExpandEnvironmentStringsW(pwszTempBuffer, pwszExpandedBuffer, cbData);
+ }
+ else
+ {
+ pwszExpandedBuffer = HeapAlloc(GetProcessHeap(), 0, cbData);
+ memcpy(pwszExpandedBuffer, pwszTempBuffer, cbData);
+ }
+
+ /* If the value references a resource based string, parse the value and
load the string.
+ * Else just copy over the original value. */
+ result = ERROR_SUCCESS;
+ if (*pwszExpandedBuffer != L'@') /* '@' is the prefix for resource based
string entries. */
+ {
+ lstrcpynW(pszOutBuf, pwszExpandedBuffer, cbOutBuf / sizeof(WCHAR));
+ }
+ else
+ {
+ WCHAR *pComma = wcsrchr(pwszExpandedBuffer, L',');
+ UINT uiStringId;
+ HMODULE hModule;
+
+ /* Format of the expanded value is 'path_to_dll,-resId' */
+ if (!pComma || pComma[1] != L'-')
+ {
+ result = ERROR_BADKEY;
+ goto cleanup;
+ }
+
+ uiStringId = _wtoi(pComma+2);
+ *pComma = L'\0';
+
+ hModule = LoadLibraryExW(pwszExpandedBuffer + 1, NULL,
LOAD_LIBRARY_AS_DATAFILE);
+ if (!hModule || !load_string(hModule, uiStringId, pszOutBuf, cbOutBuf
/ sizeof(WCHAR)))
+ result = ERROR_BADKEY;
+ FreeLibrary(hModule);
+ }
+
+cleanup:
+ HeapFree(GetProcessHeap(), 0, pwszTempBuffer);
+ HeapFree(GetProcessHeap(), 0, pwszExpandedBuffer);
+ return result;
+}
Propchange: trunk/reactos/dll/cpl/desk/muireg.c
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svn:eol-style = native
