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513 lines
21 KiB
513 lines
21 KiB
#ifndef __CLEANOC_API__
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#define __CLEANOC_API__
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// Flags used in GetControlInfo()
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#define GCI_NAME 1
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#define GCI_FILE 2
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#define GCI_CLSID 3
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#define GCI_TYPELIBID 4
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#define GCI_TOTALSIZE 5
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#define GCI_SIZESAVED 6
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#define GCI_TOTALFILES 7
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#define GCI_CODEBASE 8
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#define GCI_ISDISTUNIT 9
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#define GCI_DIST_UNIT_VERSION 10
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#define GCI_STATUS 11
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#define GCI_HAS_ACTIVEX 12
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#define GCI_HAS_JAVA 13
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// control status flags
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#define STATUS_CTRL_UNKNOWN 0 // Errors prevent determining the actual control state
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#define STATUS_CTRL_INSTALLED 1 // Control is properly installed and ready for use
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#define STATUS_CTRL_SHARED 2 // One or more components are shared by more than one control
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#define STATUS_CTRL_DAMAGED 3 // The control file or some part of the installation is damaged or missing
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#define STATUS_CTRL_UNPLUGGED 4 // The control has been re-registered in another location, the cache's
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// instance of the control is no longer being used.
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// RemoveExpiredControls flags
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#define REC_SILENT 1 // If set, controls whose deletion would require confirmation are not removed.
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///////////////////////////////////////////////////////////////////////////////
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// FindFirstControl
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//
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// Purpose:
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// Initiate a search on the registry for an installed ActiveX control.
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//
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// Return Value:
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// - ERROR_SUCCESS if a control is found and search has been successfully
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// initiated.
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// - ERROR_NO_MORE_ITEMS if no control is found.
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// - If an error has occurred, the return value is a error code defined in
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// winerror.h
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//
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// Parameters:
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// hFindHandle -- a handle needed for resuming the search. Caller must
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// pass this handle to FindNextControl to retrieve the
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// the next installed ActiveX control.
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// hControlHandle -- handle to a control's data. Caller must pass this
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// handle into GetControlInfo to retrieve information
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// about the control. Call ReleaseControlHandle on the
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// handle when done.
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// lpCachePath -- points to a string buffer that has the path where
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// all controls to be retrieved are located. If it
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// is NULL, the internet cache path will be read
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// from the registry. If a path is to be supplied,
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// the path must be a full pathname without any ~'s
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// in order for the enumeration to work correctly.
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//
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#define axcFINDFIRSTCONTROL "FindFirstControl"
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LONG WINAPI FindFirstControl(
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HANDLE& hFindHandle,
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HANDLE& hControlHandle,
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LPCTSTR lpszCachePath = NULL
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);
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typedef LONG (WINAPI *FINDFIRSTCONTROL)(
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HANDLE& hFindHandle,
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HANDLE& hControlHandle,
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LPCTSTR lpszCachePath = NULL
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);
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///////////////////////////////////////////////////////////////////////////////
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// FindNextControl
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//
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// Purpose:
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// Resume a previously started search for installed ActiveX controls. The
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// search must have been initiated by a call to FirstFirstControl.
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//
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// Return Value:
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// - ERROR_SUCCESS if a control is found and search has been successfully
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// initiated.
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// - ERROR_NO_MORE_ITEMS if no control is found.
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// - If an error has occurred, the return value is a error code defined in
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// winerror.h. In this situation, the caller can choose to continue
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// the search with another call to FindNextControl, or simply abort.
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//
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// Parameters:
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// hFindHandle -- a handle received from a call to FindFirstControl.
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// Pass this handle to subsequent calls to
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// FindNextControl to retrieve controls one at a time.
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// hControlHandle -- handle to a control's data. Caller must pass this
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// handle into GetControlInfo to retrieve information
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// about the control. Call ReleaseControlHandle on the
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// handle when done.
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//
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#define axcFINDNEXTCONTROL "FindNextControl"
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LONG WINAPI FindNextControl(
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HANDLE& hFindHandle,
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HANDLE& hControlHandle
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);
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typedef LONG (WINAPI *FINDNEXTCONTROL)(
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HANDLE& hFindHandle,
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HANDLE& hControlHandle
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);
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///////////////////////////////////////////////////////////////////////////////
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// FindControlClose
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//
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// Purpose:
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// Called when search is over. Missing a call to this function after a
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// search might contribute memory leak. This function can be called
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// regardless of what FindFirstControl and/or FindNextControl return.
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//
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// Return Value:
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// None.
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//
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// Parameters:
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// hFindHandle -- a handle obtained from calls to FindFirstControl and
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// FindNextControl in the current search.
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//
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#define axcFINDCONTROLCLOSE "FindControlClose"
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void WINAPI FindControlClose(
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HANDLE hFindHandle
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);
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typedef void (WINAPI *FINDCONTROLCLOSE)(
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HANDLE hFindHandle
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);
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///////////////////////////////////////////////////////////////////////////////
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// ReleaseControlHandle
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//
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// Purpose:
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// When a handle of a control is retrieved via FindFirstControl or
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// FindNextControl, the caller is responsible to release that handle
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// by call this function.
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//
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// Return Value:
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// None.
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//
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// Parameters:
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// hControlHandle -- a handle to a control obtained from FindFirstControl
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// or FindNextControl.
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//
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#define axcRELEASECONTROLHANDLE "ReleaseControlHandle"
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void WINAPI ReleaseControlHandle(
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HANDLE hControlHandle
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);
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typedef void (WINAPI *RELEASECONTROLHANDLE)(
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HANDLE hControlHandle
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);
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///////////////////////////////////////////////////////////////////////////////
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// GetControlInfo
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//
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// Purpose:
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// Once a handle to a control is obtained via FindFirstControl or
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// FindNextControl, the caller may retrieve information about the control
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// by call this function with a flag (nFlag) indicating what info to
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// retrieve. The supported flags are:
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// GCI_NAME -- friendly name of control
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// GCI_FILE -- main full path & file name of control
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// GCI_CLSID -- clsid of control, in a NULL-terminated string
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// GCI_TYPELIBID -- typelib guid of control, in a NULL-terminated string
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// GCI_TOTALSIZE -- total size in bytes of all control's dependent files
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// GCI_SIZESAVED -- total size in bytes restored if control is removed
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// It can be different from GCI_TOTALSIZE since some
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// of the control's dependent files might be shared dlls
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// GCI_TOTALFILES -- total number of control dependent files, including
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// shared dlls if there are any
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// GCI_STATUS -- the controls status value from STATUS_CTRL_* <above>
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// GCI_HAS_ACTIVEX -- non-zero if control includes ActiveX contols(s)
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// GCI_HAS_JAVA -- non-zero if control includes Java packages
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//
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// Return Value:
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// TRUE if succeeded, FALSE otherwise.
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//
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// Parameters:
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// hControlHandle -- handle to a control for which information is to be
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// retrieved.
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// nFlag -- indicate which information to retrieve. Please refer
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// to Purpose section above for a list of supported
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// flags. nFlag can only equal to one of them so do
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// not pass in multiple flags OR'ed together.
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// lpdwData -- address of a buffer for storing a numerical value.
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// (ie. GCI_TOTALSIZE, GCI_SIZESAVED & GCI_TOTALFILES)
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// This parameter is ignored for other flags.
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// lpszData -- address of a buffer for storing a NULL-terminated
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// string value (ie. GCI_NAME, GCI_FILE, GCI_CLSID &
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// GCI_TYPELIBID) This paramter is ignored if other
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// flags are specified.
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// nBufLen -- length of string buffer pointed to by lpszData.
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// This parameter is ignored if a numerical value is
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// being retrieved.
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//
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#define axcGETCONTROLINFO "GetControlInfo"
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BOOL WINAPI GetControlInfo(
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HANDLE hControlHandle,
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UINT nFlag,
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LPDWORD lpdwData,
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LPTSTR lpszBuf,
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int nBufLen
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);
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typedef BOOL (WINAPI *GETCONTROLINFO)(
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HANDLE hControlHandle,
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UINT nFlag,
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LPDWORD lpdwData,
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LPTSTR lpszBuf,
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int nBufLen
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);
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///////////////////////////////////////////////////////////////////////////////
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// GetControlDependentFile
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//
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// Purpose:
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// A given control might depend on other files. For instance, FOO.OCX
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// might need FOO.INF and MFCXX.DLL in order to work. This function
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// retrieves one file at a time from a list of files depended upon by a
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// given ActiveX control. The list of files is NOT sorted.
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//
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// Return Value:
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// - ERROR_SUCCESS if a file is found at position iFile in the list.
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// - ERROR_NO_MORE_FILES if no file is found at position iFile in the list.
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// - If an error has occurred, the return value is a error code defined in
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// winerror.h.
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//
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// Parameters:
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// iFile -- a zero-based index indicating which file in the list
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// to retrieve.
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// hControlHandle -- handle to a control obtained via FindFirstControl
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// or FindNextControl.
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// lpszFile -- points to a buffer used to store the retrieved name.
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// lpszSize -- points to a DWORD variable that is to store the size
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// in bytes of the file retrieved. If it is 0, the file
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// does not exist.
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// bToUpper -- TRUE if the filename returned is to be converted to
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// uppercase. No conversion takes place if FALSE
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//
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#define axcGETCONTROLDEPENDENTFILE "GetControlDependentFile"
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LONG WINAPI GetControlDependentFile(
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int iFile,
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HANDLE hControlHandle,
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LPTSTR lpszFile,
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LPDWORD lpdwSize,
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BOOL bToUpper = FALSE
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);
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typedef LONG (WINAPI *GETCONTROLDEPENDENTFILE)(
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int iFile,
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HANDLE hControlHandle,
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LPTSTR lpszFile,
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LPDWORD lpdwSize,
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BOOL bToUpper = FALSE
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);
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///////////////////////////////////////////////////////////////////////////////
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// IsModuleRemovable
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//
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// Purpose:
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// Checks whether a file can be removed by looking into the registry.
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// This function is called "IsModuleRemovable" instead of
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// "IsFileRemovable" because this routine does not check the actual file
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// for its status. For instance, a file can be deemed removable even if
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// is being exclusively opened by someone. This routine only tells from
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// the registry's point of view if a file can be safely removed or not.
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//
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// Return Value:
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// - FALSE if there is any indication that the given file is being shared
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// by other applications.
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// - TRUE otherwise.
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//
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// Parameter:
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// lpszFile -- points to a buffer that has the name (with full path) of
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// the file whose removal status is to be verified.
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//
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#define axcISMODULEREMOVABLE "IsModuleRemovable"
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BOOL WINAPI IsModuleRemovable(
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LPCTSTR lpszFile
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);
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typedef BOOL (WINAPI *ISMODULEREMOVABLE)(
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LPCTSTR lpszFile
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);
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///////////////////////////////////////////////////////////////////////////////
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// RemoveControlByHandle
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//
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// Purpose:
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// Remove a control from registry as well as all the files that the control
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// depends on.
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//
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// Return Value:
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// - S_OK if control has been successfully uninstalled.
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// - S_FALSE if minor error has occurred, but not serious enough to
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// abort the uninstallation. Control has been uninstalled when the
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// call returns.
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// - An error code defined in winerror.h if an serious error has occurred
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// and uninstallation has been aborted. The state of the control
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// is not gaurenteed.
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//
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// Parameters:
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// lpControlData -- points to an instance of CONTROL_DATA representing the
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// control to be removed. The struct must have been
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// initialized by a call to FindFirstControl or
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// FindNextControl. Be sure to call ReleaseControlData
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// on this struct after successful removal, for the data
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// in this struct is no longer useful.
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// bForceRemove -- If this flag is FALSE, the removal routine will check
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// if the control is safe for removal before removing it.
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// If the flag is TRUE, the control will be removed
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// regardless of its removal status (except for Shared
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// Violation). The flag only applies to the control file
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// itself. Other files upon which the control depends are
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// removed only if they are deemed as safe for removal.
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//
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#define axcREMOVECONTROLBYHANDLE "RemoveControlByHandle"
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HRESULT WINAPI RemoveControlByHandle(
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HANDLE hControlHandle,
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BOOL bForceRemove = FALSE
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);
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typedef HRESULT (WINAPI *REMOVECONTROLBYHANDLE)(
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HANDLE hControlHandle,
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BOOL bForceRemove = FALSE
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);
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///////////////////////////////////////////////////////////////////////////////
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// RemoveControlByName
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//
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// Purpose:
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// Remove a control from registry as well as all the files that the control
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// depends on. It is an overloaded version.
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//
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// Return Value:
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// - S_OK if control has been successfully uninstalled.
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// - S_FALSE if minor error has occurred, but not serious enough to
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// abort the uninstallation. Control has been uninstalled when the
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// call returns.
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// - An error code defined in winerror.h if an serious error has occurred
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// and uninstallation has been aborted. The state of the control
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// is not gaurenteed.
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//
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// Parameters:
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// lpszFile -- Address of a null-terminated string which is the main
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// file for the control (ie "FOO.OCX" for FOO control).
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// lpszCLSID -- Address of a null-terminated string which is the CLSID
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// of the control.
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// lpszTypeLibID -- Address of a null-terminated string which is the TypeLib
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// clsid of the control.
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// bForceRemove -- If this flag is FALSE, the removal routine will check
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// if the control is safe for removal before removing it.
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// If the flag is TRUE, the control will be removed
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// regardless of its removal status (except for Shared
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// Violation). The flag only applies to the control file
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// itself. Other files upon which the control depends are
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// removed only if they are deemed as safe for removal.
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// dwIsDistUnit -- boolean value to tell if this is really a dist unit
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//
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#define axcREMOVECONTROLBYNAME "RemoveControlByName"
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HRESULT WINAPI RemoveControlByName(
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LPCTSTR lpszFile,
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LPCTSTR lpszCLSID,
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LPCTSTR lpszTypeLibID,
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BOOL bForceRemove = FALSE,
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DWORD dwIsDistUnit = FALSE
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);
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typedef HRESULT (WINAPI *REMOVECONTROLBYNAME)(
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LPCTSTR lpszFile,
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LPCTSTR lpszCLSID,
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LPCTSTR lpszTypeLibID,
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BOOL bForceRemove = FALSE,
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DWORD dwIsDistUnit = FALSE
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);
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///////////////////////////////////////////////////////////////////////////////
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// type PFNDOBEFOREREMOVAL, used for function SweepControlsByLastAccessDate
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//
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// Purpose:
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// Define callback function to be called right before removing a control
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//
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// Return Values:
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// If a success code (S_XXX) is returned, the control will be removed.
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// If a fail code (E_XXX) is returned, the control will be skipped.
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//
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// Parameters:
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// HANDLE -- handle to the control to be removed. One can get information
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// about the control using the GetControlInfo function. Do NOT
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// call ReleaseControlHandle on the handle.
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// UINT -- number of remaining controls including this one.
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//
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typedef HRESULT (CALLBACK *PFNDOBEFOREREMOVAL)(HANDLE, UINT);
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///////////////////////////////////////////////////////////////////////////////
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// type PFNDOAFTERREMOVAL, used for function SweepControlsByLastAccessDate
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//
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// Purpose:
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// Define callback function to be called right after removing a control
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//
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// Return Values:
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// If a success code (S_XXX) is returned, the removal operation proceeds.
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// If a fail code (E_XXX) is returned, the removal operation is aborted.
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//
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// Parameters:
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// HRESULT -- result of removing the control. The handle to this control
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// was passed to the callback of type PFNDOBEFOREREMOVAL before
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// the control was removed. The possible values for this
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// HRESULT parameter are:
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// - S_OK (succeeded)
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// - S_FALSE (control had been removed with possibly some very
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// minor errors)
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// - E_ACCESSDENIED (control not safe for removal)
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// - STG_E_SHAREVIOLATION (control being used by others)
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// - Other errors returned by registry functions
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// It is up to the implementator of this function to decide
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// what to do given the result of removing the last control.
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// UINT -- number of remaining controls, NOT including the one just
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// removed.
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//
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typedef HRESULT (CALLBACK *PFNDOAFTERREMOVAL)(HRESULT, UINT);
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///////////////////////////////////////////////////////////////////////////////
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// SweepControlsByLastAccessDate
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//
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// Purpose:
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// Remove all controls whose last access date is before and on a given
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// date.
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//
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// Return Value:
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// - S_OK if succeeded and at least one control was removed.
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// - S_FALSE if succeeded but no controls have been removed.
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// - E_XXX defined in winerror.h if an error has occurred.
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//
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// Parameters:
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// pLastAccessTime -- specify a last access date. All controls accessed
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// before and on this date are to be removed. Note
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// that all fields except wYear, wMonth and wDay are
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// ignored. If NULL, all control will be removed.
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// pfnDoBefore -- callback function called just before a control is
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// removed. Please read the description for type
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// PFNDOBEFOREREMOVAL for details. If NULL, nothing
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// is to be done prior to removing a control.
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// pfnDoAfter -- callback function called right after a control is
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// removed. Please read the description for type
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// PFNDOAFTERREMOVAL for details. If NULL, nothing
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// is to be done after a control is removed.
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// dwSizeLimit -- controls will be removed only if the total size
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// (in bytes) of all controls exceeds the size
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// specified by this paramter. This parameter is
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// ignored if 0 is specified.
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//
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#define axcSWEEPCONTROLSBYLASTACCESSDATE "SweepControlsByLastAccessDate"
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HRESULT WINAPI SweepControlsByLastAccessDate(
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SYSTEMTIME *pLastAccessTime = NULL,
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PFNDOBEFOREREMOVAL pfnDoBefore = NULL,
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PFNDOAFTERREMOVAL pfnDoAfter = NULL,
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DWORD dwSizeLimit = 0
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);
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typedef HRESULT (WINAPI *SWEEPCONTROLSBYLASTACCESSDATE)(
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SYSTEMTIME *pLastAccessTime = NULL,
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PFNDOBEFOREREMOVAL pfnDoBefore = NULL,
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PFNDOAFTERREMOVAL pfnDoAfter = NULL,
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DWORD dwSizeLimit = 0
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);
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///////////////////////////////////////////////////////////////////////////////
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// RemoveExpiredControls
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//
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// Purpose:
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// Similar to IEmptyVolumeCache. Removes all controls with a last
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// access date in the distant past and all controls flagged for more
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// rapid auto-expire.
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//
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// Return Value:
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// - S_OK if succeeded and at least one control was removed.
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// - S_FALSE if succeeded but no controls have been removed.
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// - E_XXX defined in winerror.h if an error has occurred.
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//
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// Parameters:
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// dwFlags -- Currently, only REC_SILENT is defined.
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// dwReserved -- Must be 0.
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//
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#define axcREMOVEEXPIREDCONTROLS "RemoveExpiredControls"
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HRESULT WINAPI RemoveExpiredControls(DWORD dwFlags, DWORD dwReserved);
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typedef HRESULT (WINAPI *REMOVEEXPIREDCONTROLS)(DWORD dwFlags, DWORD dwReserved);
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#endif
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