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92 lines
2.1 KiB
C++
Executable File
92 lines
2.1 KiB
C++
Executable File
// DLLExports.cpp
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#include "StdAfx.h"
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#include "Common/MyInitGuid.h"
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#include "Common/ComTry.h"
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#include "ByteSwap.h"
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#include "../../ICoder.h"
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extern "C"
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BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID /*lpReserved*/)
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{
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return TRUE;
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}
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STDAPI CreateObject(const GUID *clsid, const GUID *iid, void **outObject)
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{
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COM_TRY_BEGIN
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*outObject = 0;
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int correctInterface = (*iid == IID_ICompressFilter);
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CMyComPtr<ICompressFilter> coder;
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if (*clsid == CLSID_CCompressConvertByteSwap2)
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{
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if (!correctInterface)
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return E_NOINTERFACE;
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coder = (ICompressFilter *)new CByteSwap2();
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}
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else if (*clsid == CLSID_CCompressConvertByteSwap4)
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{
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if (!correctInterface)
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return E_NOINTERFACE;
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coder = (ICompressFilter *)new CByteSwap4();
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}
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else
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return CLASS_E_CLASSNOTAVAILABLE;
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*outObject = coder.Detach();
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COM_TRY_END
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return S_OK;
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}
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struct CSwapMethodInfo
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{
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char ID[3];
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const wchar_t *Name;
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const GUID *clsid;
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};
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static CSwapMethodInfo g_Methods[] =
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{
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{ { 0x2, 0x03, 0x02 }, L"Swap2", &CLSID_CCompressConvertByteSwap2 },
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{ { 0x2, 0x03, 0x04 }, L"Swap4", &CLSID_CCompressConvertByteSwap4 }
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};
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STDAPI GetNumberOfMethods(UINT32 *numMethods)
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{
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*numMethods = sizeof(g_Methods) / sizeof(g_Methods[1]);
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return S_OK;
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}
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STDAPI GetMethodProperty(UINT32 index, PROPID propID, PROPVARIANT *value)
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{
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if (index > sizeof(g_Methods) / sizeof(g_Methods[1]))
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return E_INVALIDARG;
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::VariantClear((tagVARIANT *)value);
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const CSwapMethodInfo &method = g_Methods[index];
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switch(propID)
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{
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case NMethodPropID::kID:
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{
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if ((value->bstrVal = ::SysAllocStringByteLen(method.ID,
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sizeof(method.ID))) != 0)
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value->vt = VT_BSTR;
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return S_OK;
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}
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case NMethodPropID::kName:
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{
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if ((value->bstrVal = ::SysAllocString(method.Name)) != 0)
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value->vt = VT_BSTR;
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return S_OK;
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}
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case NMethodPropID::kDecoder:
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case NMethodPropID::kEncoder:
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{
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if ((value->bstrVal = ::SysAllocStringByteLen(
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(const char *)method.clsid, sizeof(GUID))) != 0)
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value->vt = VT_BSTR;
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return S_OK;
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}
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}
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return S_OK;
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}
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