WindowsXP-SP1/shell/shell32/xiconwrap.cpp

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2001-01-01 00:00:00 +01:00
#include "shellprv.h"
#pragma hdrstop
#include "xiconwrap.h"
// IUnknown
STDMETHODIMP CExtractIconBase::QueryInterface(REFIID riid, void** ppv)
{
static const QITAB qit[] =
{
QITABENT(CExtractIconBase, IExtractIconA),
QITABENT(CExtractIconBase, IExtractIconW),
{ 0 },
};
return QISearch(this, qit, riid, ppv);
}
STDMETHODIMP_(ULONG) CExtractIconBase::AddRef()
{
return InterlockedIncrement(&_cRef);
}
STDMETHODIMP_(ULONG) CExtractIconBase::Release()
{
if (InterlockedDecrement(&_cRef))
return _cRef;
delete this;
return 0;
}
CExtractIconBase::CExtractIconBase() : _cRef(1)
{
DllAddRef();
}
CExtractIconBase::~CExtractIconBase()
{
DllRelease();
}
// IExtractIconA
STDMETHODIMP CExtractIconBase::GetIconLocation(UINT uFlags,
LPSTR pszIconFile, UINT cchMax, int* piIndex, UINT* pwFlags)
{
WCHAR sz[MAX_PATH];
HRESULT hr = _GetIconLocationW(uFlags, sz, ARRAYSIZE(sz), piIndex, pwFlags);
if (S_OK == hr)
{
// We don't want to copy the icon file name on the S_FALSE case
SHUnicodeToAnsi(sz, pszIconFile, cchMax);
}
return hr;
}
STDMETHODIMP CExtractIconBase::Extract(LPCSTR pszFile, UINT nIconIndex,
HICON* phiconLarge, HICON* phiconSmall, UINT nIconSize)
{
WCHAR sz[MAX_PATH];
SHAnsiToUnicode(pszFile, sz, ARRAYSIZE(sz));
return _ExtractW(sz, nIconIndex, phiconLarge, phiconSmall, nIconSize);
}
// IExtractIconW
STDMETHODIMP CExtractIconBase::GetIconLocation(UINT uFlags,
LPWSTR pszIconFile, UINT cchMax, int* piIndex, UINT* pwFlags)
{
return _GetIconLocationW(uFlags, pszIconFile, cchMax, piIndex, pwFlags);
}
STDMETHODIMP CExtractIconBase::Extract(LPCWSTR pszFile, UINT nIconIndex,
HICON* phiconLarge, HICON* phiconSmall, UINT nIconSize)
{
return _ExtractW(pszFile, nIconIndex, phiconLarge, phiconSmall, nIconSize);
}