95 lines
2.8 KiB
C++
95 lines
2.8 KiB
C++
//=--------------------------------------------------------------------------=
|
|
// CatHelp.Cpp
|
|
//=--------------------------------------------------------------------------=
|
|
// Copyright 1995-1996 Microsoft Corporation. All Rights Reserved.
|
|
//
|
|
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
|
|
// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
|
|
// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
|
|
// PARTICULAR PURPOSE.
|
|
//=--------------------------------------------------------------------------=
|
|
//
|
|
// contains the Component Category helper functions.
|
|
//
|
|
#include "stdafx.h"
|
|
|
|
#include "comcat.h"
|
|
|
|
// Helper function to create a component category and associated description
|
|
HRESULT CreateComponentCategory(CATID catid, WCHAR* catDescription)
|
|
{
|
|
|
|
ICatRegister* pcr = NULL ;
|
|
HRESULT hr = S_OK ;
|
|
|
|
hr = CoCreateInstance(CLSID_StdComponentCategoriesMgr,
|
|
NULL, CLSCTX_INPROC_SERVER, IID_ICatRegister, (void**)&pcr);
|
|
if (FAILED(hr))
|
|
return hr;
|
|
|
|
// Make sure the HKCR\Component Categories\{..catid...}
|
|
// key is registered
|
|
CATEGORYINFO catinfo;
|
|
catinfo.catid = catid;
|
|
catinfo.lcid = 0x0409 ; // english
|
|
|
|
// Make sure the provided description is not too long.
|
|
// Only copy the first 127 characters if it is
|
|
int len = wcslen(catDescription);
|
|
if (len>127)
|
|
len = 127;
|
|
wcsncpy(catinfo.szDescription, catDescription, len);
|
|
// Make sure the description is null terminated
|
|
catinfo.szDescription[len] = '\0';
|
|
|
|
hr = pcr->RegisterCategories(1, &catinfo);
|
|
pcr->Release();
|
|
|
|
return hr;
|
|
}
|
|
|
|
// Helper function to register a CLSID as belonging to a component category
|
|
HRESULT RegisterCLSIDInCategory(REFCLSID clsid, CATID catid)
|
|
{
|
|
// Register your component categories information.
|
|
ICatRegister* pcr = NULL ;
|
|
HRESULT hr = S_OK ;
|
|
hr = CoCreateInstance(CLSID_StdComponentCategoriesMgr,
|
|
NULL, CLSCTX_INPROC_SERVER, IID_ICatRegister, (void**)&pcr);
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
// Register this category as being "implemented" by
|
|
// the class.
|
|
CATID rgcatid[1] ;
|
|
rgcatid[0] = catid;
|
|
hr = pcr->RegisterClassImplCategories(clsid, 1, rgcatid);
|
|
}
|
|
|
|
if (pcr != NULL)
|
|
pcr->Release();
|
|
|
|
return hr;
|
|
}
|
|
|
|
// Helper function to unregister a CLSID as belonging to a component category
|
|
HRESULT UnRegisterCLSIDInCategory(REFCLSID clsid, CATID catid)
|
|
{
|
|
ICatRegister* pcr = NULL ;
|
|
HRESULT hr = S_OK ;
|
|
hr = CoCreateInstance(CLSID_StdComponentCategoriesMgr,
|
|
NULL, CLSCTX_INPROC_SERVER, IID_ICatRegister, (void**)&pcr);
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
// Unregister this category as being "implemented" by
|
|
// the class.
|
|
CATID rgcatid[1] ;
|
|
rgcatid[0] = catid;
|
|
hr = pcr->UnRegisterClassImplCategories(clsid, 1, rgcatid);
|
|
}
|
|
|
|
if (pcr != NULL)
|
|
pcr->Release();
|
|
|
|
return hr;
|
|
}
|