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* add documentation for wxMemoryBuffer

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* add suport for values of type REG_BINARY in the msw registry.

   Such values are converted to wxMemoryBuffer for internal handling


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@28258 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Roger Gammans
2004-07-16 13:09:52 +00:00
parent f79a46f83a
commit 9b386ecadb
5 changed files with 201 additions and 4 deletions
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68
src/msw/registry.cpp
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@@ -55,6 +55,7 @@
// some registry functions don't like signed chars
typedef unsigned char *RegString;
typedef BYTE* RegBinary;
// ----------------------------------------------------------------------------
// constants
@@ -491,14 +492,19 @@ bool wxRegKey::CopyValue(const wxChar *szValue,
keyDst.SetValue(szValueNew, dwVal);
}
#ifdef __WIN32__
case Type_Binary:
{
wxMemoryBuffer buf;
return QueryValue(szValue,buf) &&
keyDst.SetValue(szValueNew,buf);
}
// these types are unsupported because I am not sure about how
// exactly they should be copied and because they shouldn't
// occur among the application keys (supposedly created with
// this class)
#ifdef __WIN32__
case Type_None:
case Type_Expand_String:
case Type_Binary:
case Type_Dword_big_endian:
case Type_Link:
case Type_Multi_String:
@@ -601,6 +607,9 @@ bool wxRegKey::Copy(wxRegKey& keyDst)
if ( ok )
bCont = GetNextKey(strKey, lIndex);
else
wxLogError(_("Failed to copy the registry subkey '%s' to '%s'."), GetFullName(&key), keyName.mb_str());
}
// copy all values
@@ -824,6 +833,61 @@ bool wxRegKey::QueryValue(const wxChar *szValue, long *plValue) const
return FALSE;
}
bool wxRegKey::SetValue(const wxChar *szValue,const wxMemoryBuffer& buffer)
{
#ifdef __TWIN32__
wxFAIL_MSG("RegSetValueEx not implemented by TWIN32");
return FALSE;
#else
if ( CONST_CAST Open() ) {
m_dwLastError = RegSetValueEx((HKEY) m_hKey, szValue, (DWORD) RESERVED, REG_BINARY,
(RegBinary)buffer.GetData(),buffer.GetDataLen());
if ( m_dwLastError == ERROR_SUCCESS )
return TRUE;
}
wxLogSysError(m_dwLastError, _("Can't set value of '%s'"),
GetFullName(this, szValue));
return FALSE;
#endif
}
bool wxRegKey::QueryValue(const wxChar *szValue, wxMemoryBuffer& buffer) const
{
if ( CONST_CAST Open() ) {
// first get the type and size of the data
DWORD dwType, dwSize;
m_dwLastError = RegQueryValueEx((HKEY) m_hKey, WXSTRINGCAST szValue, RESERVED,
&dwType, NULL, &dwSize);
if ( m_dwLastError == ERROR_SUCCESS ) {
if ( dwSize ) {
const RegBinary pBuf = (RegBinary)buffer.GetWriteBuf(dwSize);
m_dwLastError = RegQueryValueEx((HKEY) m_hKey,
WXSTRINGCAST szValue,
RESERVED,
&dwType,
pBuf,
&dwSize);
buffer.UngetWriteBuf(dwSize);
} else {
buffer.SetDataLen(0);
}
}
if ( m_dwLastError != ERROR_SUCCESS ) {
wxLogSysError(m_dwLastError, _("Can't read value of key '%s'"),
GetName().c_str());
return FALSE;
}
return TRUE;
}
return FALSE;
}
#endif //Win32
bool wxRegKey::QueryValue(const wxChar *szValue,