51 lines
1.7 KiB
C
51 lines
1.7 KiB
C
/*****************************************************************************\
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FILE: AutoDiscoveryUI.h
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DESCRIPTION:
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This is AutoDiscovery progress UI for the Outlook Express's email
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configuration wizard.
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BryanSt 1/18/2000
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Copyright (C) Microsoft Corp 2000-2000. All rights reserved.
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\*****************************************************************************/
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#ifndef FILE_AUTODISCOVERY_H
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#define FILE_AUTODISCOVERY_H
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// IID_PPV_ARG(IType, ppType)
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// IType is the type of pType
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// ppType is the variable of type IType that will be filled
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//
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// RESULTS in: IID_IType, ppvType
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// will create a compiler error if wrong level of indirection is used.
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//
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// macro for QueryInterface and related functions
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// that require a IID and a (void **)
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// this will insure that the cast is safe and appropriate on C++
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//
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// IID_PPV_ARG_NULL(IType, ppType)
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//
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// Just like IID_PPV_ARG, except that it sticks a NULL between the
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// IID and PPV (for IShellFolder::GetUIObjectOf).
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//
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// IID_X_PPV_ARG(IType, X, ppType)
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//
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// Just like IID_PPV_ARG, except that it sticks X between the
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// IID and PPV (for SHBindToObject).
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#ifdef __cplusplus
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#define IID_PPV_ARG(IType, ppType) IID_##IType, reinterpret_cast<void**>(static_cast<IType**>(ppType))
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#define IID_X_PPV_ARG(IType, X, ppType) IID_##IType, X, reinterpret_cast<void**>(static_cast<IType**>(ppType))
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#else
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#define IID_PPV_ARG(IType, ppType) &IID_##IType, (void**)(ppType)
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#define IID_X_PPV_ARG(IType, X, ppType) &IID_##IType, X, (void**)(ppType)
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#endif
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#define IID_PPV_ARG_NULL(IType, ppType) IID_X_PPV_ARG(IType, NULL, ppType)
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#endif // FILE_AUTODISCOVERY_H
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