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Initial VST FilePresenter implementation
This commit is contained in:
Jack Andersen
238
VST/FileOpenDialog.cpp
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238
VST/FileOpenDialog.cpp
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#include "FileOpenDialog.hpp"
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h> // For common windows data types and function headers
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#define STRICT_TYPED_ITEMIDS
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#include <objbase.h> // For COM headers
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#include <shobjidl.h> // for IFileDialogEvents and IFileDialogControlEvents
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#include <shlwapi.h>
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#include <knownfolders.h> // for KnownFolder APIs/datatypes/function headers
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#include <propvarutil.h> // for PROPVAR-related functions
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#include <propkey.h> // for the Property key APIs/datatypes
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#include <propidl.h> // for the Property System APIs
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#include <strsafe.h> // for StringCchPrintfW
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#include <shtypes.h> // for COMDLG_FILTERSPEC
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#include <new>
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// Controls
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#define CONTROL_GROUP 2000
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#define CONTROL_RADIOBUTTONLIST 2
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#define CONTROL_RADIOBUTTON1 1
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#define CONTROL_RADIOBUTTON2 2 // It is OK for this to have the same IDas CONTROL_RADIOBUTTONLIST,
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// because it is a child control under CONTROL_RADIOBUTTONLIST
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// IDs for the Task Dialog Buttons
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#define IDC_BASICFILEOPEN 100
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#define IDC_ADDITEMSTOCUSTOMPLACES 101
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#define IDC_ADDCUSTOMCONTROLS 102
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#define IDC_SETDEFAULTVALUESFORPROPERTIES 103
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#define IDC_WRITEPROPERTIESUSINGHANDLERS 104
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#define IDC_WRITEPROPERTIESWITHOUTUSINGHANDLERS 105
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HWND ghMainWnd = 0;
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HINSTANCE ghAppInst = 0;
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RECT winRect;
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class CDialogEventHandler : public IFileDialogEvents,
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public IFileDialogControlEvents
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{
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public:
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// IUnknown methods
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IFACEMETHODIMP QueryInterface(REFIID riid, void** ppv)
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{
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static const QITAB qit[] = {
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QITABENT(CDialogEventHandler, IFileDialogEvents),
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QITABENT(CDialogEventHandler, IFileDialogControlEvents),
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{ 0 },
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};
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return QISearch(this, qit, riid, ppv);
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}
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IFACEMETHODIMP_(ULONG) AddRef()
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{
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return InterlockedIncrement(&_cRef);
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}
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IFACEMETHODIMP_(ULONG) Release()
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{
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long cRef = InterlockedDecrement(&_cRef);
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if (!cRef)
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delete this;
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return cRef;
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}
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// IFileDialogEvents methods
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IFACEMETHODIMP OnFileOk(IFileDialog *) { return S_OK; };
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IFACEMETHODIMP OnFolderChange(IFileDialog *) { return S_OK; };
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IFACEMETHODIMP OnFolderChanging(IFileDialog *, IShellItem *) { return S_OK; };
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IFACEMETHODIMP OnHelp(IFileDialog *) { return S_OK; };
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IFACEMETHODIMP OnSelectionChange(IFileDialog *) { return S_OK; };
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IFACEMETHODIMP OnShareViolation(IFileDialog *, IShellItem *, FDE_SHAREVIOLATION_RESPONSE *) { return S_OK; };
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IFACEMETHODIMP OnTypeChange(IFileDialog *pfd);
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IFACEMETHODIMP OnOverwrite(IFileDialog *, IShellItem *, FDE_OVERWRITE_RESPONSE *) { return S_OK; };
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// IFileDialogControlEvents methods
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IFACEMETHODIMP OnItemSelected(IFileDialogCustomize *pfdc, DWORD dwIDCtl, DWORD dwIDItem);
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IFACEMETHODIMP OnButtonClicked(IFileDialogCustomize *, DWORD) { return S_OK; };
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IFACEMETHODIMP OnCheckButtonToggled(IFileDialogCustomize *, DWORD, BOOL) { return S_OK; };
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IFACEMETHODIMP OnControlActivating(IFileDialogCustomize *, DWORD) { return S_OK; };
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CDialogEventHandler() : _cRef(1) { };
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private:
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~CDialogEventHandler() { };
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long _cRef;
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};
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HRESULT CDialogEventHandler_CreateInstance(REFIID riid, void **ppv);
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std::wstring openDB()
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{
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std::wstring ret;
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//Cocreate the file open dialog object
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IFileDialog *pfd = NULL;
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HRESULT hr = CoCreateInstance(CLSID_FileOpenDialog, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&pfd));
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if (SUCCEEDED(hr))
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{
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//Stuff needed for later
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const COMDLG_FILTERSPEC rgFExt[] = {{L"Audio Group Archive (*.*)", L"*.*"}};
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//Create event handling
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IFileDialogEvents *pfde = NULL;
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hr = CDialogEventHandler_CreateInstance(IID_PPV_ARGS(&pfde));
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if(SUCCEEDED(hr))
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{
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//Hook the event handler
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DWORD dwCookie;
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hr = pfd->Advise(pfde, &dwCookie);
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if (SUCCEEDED(hr))
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{
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//Set options for the dialog
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DWORD dwFlags;
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//Get options first so we do not override
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hr = pfd->GetOptions(&dwFlags);
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if (SUCCEEDED(hr))
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{
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//Get shell items only
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hr = pfd->SetOptions(dwFlags | FOS_FORCEFILESYSTEM);
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if (SUCCEEDED(hr))
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{
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//Types of files to display (not default)
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hr = pfd->SetFileTypes(ARRAYSIZE(rgFExt), rgFExt);
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if (SUCCEEDED(hr))
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{
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//Set default file type to display
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//hr = pfd->SetDefaultExtension(L"sqlite");
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//if (SUCCEEDED(hr))
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//{
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//Show dialog
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hr = pfd->Show(NULL);
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if (SUCCEEDED(hr))
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{
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//Get the result once the user clicks on open
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IShellItem *result;
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hr = pfd->GetResult(&result);
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if (SUCCEEDED(hr))
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{
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//Print out the file name
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PWSTR fName = NULL;
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hr = result->GetDisplayName(SIGDN_FILESYSPATH, &fName);
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if (SUCCEEDED(hr))
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{
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ret.assign(fName);
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CoTaskMemFree(fName);
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}
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result->Release();
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}
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}
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//}
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}
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}
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}
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}
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pfd->Unadvise(dwCookie);
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}
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pfde->Release();
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}
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pfd->Release();
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return ret;
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}
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HRESULT CDialogEventHandler_CreateInstance(REFIID riid, void **ppv)
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{
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*ppv = NULL;
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CDialogEventHandler *pDialogEventHandler = new (std::nothrow) CDialogEventHandler();
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HRESULT hr = pDialogEventHandler ? S_OK : E_OUTOFMEMORY;
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if (SUCCEEDED(hr))
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{
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hr = pDialogEventHandler->QueryInterface(riid, ppv);
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pDialogEventHandler->Release();
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}
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return hr;
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}
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HRESULT CDialogEventHandler::OnTypeChange(IFileDialog *pfd)
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{
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IFileSaveDialog *pfsd;
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HRESULT hr = pfd->QueryInterface(&pfsd);
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if (SUCCEEDED(hr))
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{
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UINT uIndex;
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hr = pfsd->GetFileTypeIndex(&uIndex); // index of current file-type
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if (SUCCEEDED(hr))
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{
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IPropertyDescriptionList *pdl = NULL;
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}
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pfsd->Release();
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}
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return hr;
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}
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// IFileDialogControlEvents
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// This method gets called when an dialog control item selection happens (radio-button selection. etc).
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// For sample sake, let's react to this event by changing the dialog title.
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HRESULT CDialogEventHandler::OnItemSelected(IFileDialogCustomize *pfdc, DWORD dwIDCtl, DWORD dwIDItem)
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{
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IFileDialog *pfd = NULL;
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HRESULT hr = pfdc->QueryInterface(&pfd);
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if (SUCCEEDED(hr))
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{
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if (dwIDCtl == CONTROL_RADIOBUTTONLIST)
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{
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switch (dwIDItem)
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{
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case CONTROL_RADIOBUTTON1:
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hr = pfd->SetTitle(L"Longhorn Dialog");
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break;
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case CONTROL_RADIOBUTTON2:
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hr = pfd->SetTitle(L"Vista Dialog");
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break;
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}
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}
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pfd->Release();
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}
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return hr;
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}
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