/*******************************************
* HUFFMAN
* Driver program to exercise the huffman generation code
*******************************************/
void huffman()
{
// Declare variables
PAIR temp;
BNODE * node;
BNODEVECTOR data;
STRINGVECTOR code;
// Prompt the user for the file name.
string filename;
getFile(filename);
// read the file
readFile(filename, temp, node, data);
// sort for the tree
sort(data.begin(), data.end(), compareFrequencies);
// Create the tree
createtree(data);
// Determine the path of the nodes on the tree
encode(data[0], "", code);
// sort the tree
sort(code.begin(), code.end(), compareStrings);
// Display the path
display(code);
return;
}
void TransferWallpapers()
{
STRINGVECTOR wallpaperRepository;
LoadWallpaperRepository(&wallpaperRepository);
int paramLength = 1;
int size = wallpaperRepository.size();
for (int i = 0; i < size; ++i)
{
wchar_t *str = wallpaperRepository[i];
paramLength += wcslen(str) + 1;
}
if (paramLength > 1)
{
wchar_t *param = new wchar_t[paramLength];
memset(param, 0, paramLength * sizeof(wchar_t));
wchar_t *tmp = param;
for (int i = 0; i < size; ++i)
{
wchar_t *str = wallpaperRepository[i];
memcpy(tmp, str, (wcslen(str) + 1) * sizeof(wchar_t));
tmp += wcslen(str) + 1;
}
HKEY hKey = NULL;
RegOpenKeyEx(HKEY_LOCAL_MACHINE, L"Software\\Microsoft\\Shell\\WallpaperSets", 0, 0, &hKey);
if (hKey)
{
RegSetValueEx(hKey, L"OEMWallpapers", 0, REG_MULTI_SZ, (LPBYTE)param, paramLength * sizeof(wchar_t));
RegCloseKey(hKey);
}
delete[] param;
}
for (STRINGVECTOR::iterator iterator = wallpaperRepository.begin(); iterator != wallpaperRepository.end(); ++iterator)
{
delete(*iterator);
}
wallpaperRepository.erase(wallpaperRepository.begin(), wallpaperRepository.end());
}
