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CWinApp Class
CWinApp::AddDocTemplate
CWinApp::AddToRecentFileList
CWinApp::ApplicationRecoveryCallback
CWinApp::CloseAllDocuments
CWinApp::CreatePrinterDC
CWinApp::CWinApp
CWinApp::DelRegTree
CWinApp::DoMessageBox
CWinApp::DoWaitCursor
CWinApp::EnableD2DSupport
CWinApp::EnableHtmlHelp
CWinApp::EnableShellOpen
CWinApp::EnableTaskbarInteraction
CWinApp::ExitInstance
CWinApp::GetApplicationRecoveryParameter
CWinApp::GetApplicationRecoveryPingInterval
CWinApp::GetApplicationRestartFlags
CWinApp::GetAppRegistryKey
CWinApp::GetDataRecoveryHandler
CWinApp::GetFirstDocTemplatePosition
CWinApp::GetHelpMode
CWinApp::GetNextDocTemplate
CWinApp::GetPrinterDeviceDefaults
CWinApp::GetProfileBinary
CWinApp::GetProfileInt
CWinApp::GetProfileString
CWinApp::GetSectionKey
CWinApp::HideApplication
CWinApp::HtmlHelp
CWinApp::InitInstance
CWinApp::IsTaskbarInteractionEnabled
CWinApp::LoadCursor
CWinApp::LoadIcon
CWinApp::LoadOEMCursor
CWinApp::LoadOEMIcon
CWinApp::LoadStandardCursor
CWinApp::LoadStandardIcon
CWinApp::LoadStdProfileSettings
CWinApp::m_bHelpMode
CWinApp::m_dwRestartManagerSupportFlags
CWinApp::m_eHelpType
CWinApp::m_hInstance
CWinApp::m_lpCmdLine
CWinApp::m_nAutosaveInterval
CWinApp::m_nCmdShow
CWinApp::m_pActiveWnd
CWinApp::m_pDataRecoveryHandler
CWinApp::m_pszAppName
CWinApp::m_pszExeName
CWinApp::m_pszHelpFilePath
CWinApp::m_pszProfileName
CWinApp::m_pszRegistryKey
CWinApp::m_pszAppID
CWinApp::OnContextHelp
CWinApp::OnDDECommand
CWinApp::OnFileNew
CWinApp::OnFileOpen
CWinApp::OnFilePrintSetup
CWinApp::OnHelp
CWinApp::OnHelpFinder
CWinApp::OnHelpIndex
CWinApp::OnHelpUsing
CWinApp::OnIdle
CWinApp::OpenDocumentFile
CWinApp::ParseCommandLine
CWinApp::PreTranslateMessage
CWinApp::ProcessMessageFilter
CWinApp::ProcessShellCommand
CWinApp::ProcessWndProcException
CWinApp::Register
CWinApp::RegisterShellFileTypes
CWinApp::RegisterWithRestartManager
CWinApp::ReopenPreviousFilesAtRestart
CWinApp::RestartInstance
CWinApp::RestoreAutosavedFilesAtRestart
CWinApp::Run
CWinApp::RunAutomated
CWinApp::RunEmbedded
CWinApp::SaveAllModified
CWinApp::SelectPrinter
CWinApp::SetHelpMode
CWinApp::SetRegistryKey
CWinApp::SupportsApplicationRecovery
CWinApp::SupportsAutosaveAtInterval
CWinApp::SupportsAutosaveAtRestart
CWinApp::SupportsRestartManager
CWinApp::Unregister
CWinApp::UnregisterShellFileTypes
CWinApp::WinHelp
CWinApp::WriteProfileBinary
CWinApp::WriteProfileInt
CWinApp::WriteProfileString
CWinApp::SetAppID
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CWinApp::DelRegTree

Visual Studio 2012

Deletes a specific registry key and all its subkeys.

Copy 
LONG DelRegTree( 
   HKEY hParentKey, 
   const CString& strKeyName 
); 
LONG DelRegTree( 
   HKEY hParentKey,
   const CString& strKeyName,
   CAtlTransactionManager* pTM = NULL
);
hParentKey

Handle to a registry key.

strKeyName

The name of the registry key to be deleted.

pTM

Pointer to CAtlTransactionManager object.

If the function succeeds, the return value is ERROR_SUCCESS. If the function fails, the return value is a nonzero error code defined in Winerror.h.

Call this function to delete the specified key and its subkeys.

Header: afxwin.h

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