129 lines
4.8 KiB
C++
129 lines
4.8 KiB
C++
//------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 2000
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//
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// File: DllRegHelper.cpp
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//
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// Contents: helper classes to register COM components in DLLs
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//
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//------------------------------------------------------------------------
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#include "DllRegHelper.h"
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#pragma hdrstop
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#include <comcat.h>
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#include <advpub.h>
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#include "ccstock.h"
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#include "shlwapi.h"
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#include "debug.h"
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#include "mluisupp.h"
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#define _APLHA_ComCat_WorkAround // { ALPHA ComCat bug work-around on alpha, nuke this eventually?
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// ie40:63004: comcat does RegCloseKey(invalid) on checked
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// nt/alpha if the clsid doesn't exist (e.g. for QuickLinksOld)
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#if defined(_APLHA_ComCat_WorkAround)
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//------------------------------------------------------------------------
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//*** HasImplCat -- does "HKCR/CLSID/{clsid}/Implemented Categories" exist
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// NOTES
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// used for ComCat bug work-around on alpha
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BOOL HasImplCat(const CATID *pclsid)
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{
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HKEY hk;
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TCHAR szClass[GUIDSTR_MAX];
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TCHAR szImpl[MAX_PATH]; // "CLSID/{clsid}/Implemented Categories" < MAX_PATH
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// "CLSID/{clsid}/Implemented Categories"
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SHStringFromGUID(*pclsid, szClass, ARRAYSIZE(szClass));
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ASSERT(lstrlen(szClass) == GUIDSTR_MAX - 1);
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wnsprintf(szImpl, ARRAYSIZE(szImpl), TEXT("CLSID\\%s\\Implemented Categories"), szClass);
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if (RegOpenKeyEx(HKEY_CLASSES_ROOT, szImpl, 0, KEY_READ, &hk) == ERROR_SUCCESS) {
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RegCloseKey(hk);
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return TRUE;
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}
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else {
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TraceMsg(DM_WARNING, "HasImplCat: %s: ret 0", szImpl);
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return FALSE;
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}
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}
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#endif // }
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//------------------------------------------------------------------------
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//*** RegisterOneCategory -- [un]register ComCat implementor(s) and category
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// ENTRY/EXIT
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// eRegister CCR_REG, CCR_UNREG, CCR_UNREGIMP
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// CCR_REG, UNREG reg/unreg implementor(s) and category
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// CCR_UNREGIMP unreg implementor(s) only
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// pcatidCat e.g. CATID_DeskBand
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// idResCat e.g. IDS_CATDESKBAND
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// pcatidImpl e.g. c_DeskBandClasses
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HRESULT DRH_RegisterOneCategory(const CATID *pcatidCat, UINT idResCat, const CATID * const *pcatidImpl, enum DRH_REG_MODE eRegister)
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{
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ICatRegister* pcr;
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HRESULT hr = CoCreateInstance(CLSID_StdComponentCategoriesMgr, NULL,
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CLSCTX_INPROC_SERVER, IID_PPV_ARG(ICatRegister, &pcr));
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if (SUCCEEDED(hr))
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{
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if (eRegister == CCR_REG)
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{
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// register the category
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CATEGORYINFO catinfo;
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catinfo.catid = *pcatidCat; // e.g. CATID_DESKBAND
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catinfo.lcid = LOCALE_USER_DEFAULT;
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MLLoadString(idResCat, catinfo.szDescription, ARRAYSIZE(catinfo.szDescription));
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hr = pcr->RegisterCategories(1, &catinfo);
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ASSERT(SUCCEEDED(hr));
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// register the classes that implement categories
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for ( ; *pcatidImpl != NULL; pcatidImpl++)
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{
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CLSID clsid = **pcatidImpl;
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CATID catid = *pcatidCat;
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hr = pcr->RegisterClassImplCategories(clsid, 1, &catid);
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ASSERT(SUCCEEDED(hr));
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}
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}
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else
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{
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// unregister the classes that implement categories
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for ( ; *pcatidImpl != NULL; pcatidImpl++)
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{
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CLSID clsid = **pcatidImpl;
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CATID catid = *pcatidCat;
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#if defined(_APLHA_ComCat_WorkAround) // { ALPHA ComCat bug work-around on alpha, nuke this eventually?
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// workaround comcat/alpha bug
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// n.b. we do this for non-alpha too to reduce testing impact
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// ie40:63004: comcat does RegCloseKey(invalid) on checked
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// nt/alpha if the clsid doesn't exist (e.g. for QuickLinksOld)
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if (!HasImplCat(&clsid))
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continue;
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#endif // }
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hr = pcr->UnRegisterClassImplCategories(clsid, 1, &catid);
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ASSERT(SUCCEEDED(hr));
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}
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if (eRegister == CCR_UNREG)
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{
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// Do we want to do this? other classes (e.g. 3rd party
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// ones) might still be using the category. however since we're
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// the component that added (and supports) the category, it
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// seems correct that we should remove it when we unregister.
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// unregister the category
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CATID catid = *pcatidCat;
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hr = pcr->UnRegisterCategories(1, &catid);
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ASSERT(SUCCEEDED(hr));
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}
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}
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pcr->Release();
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}
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return S_OK;
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}
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