Clarion 6.3.9058 Duplicate Symbol Errors

A couple of days ago one of my users reported a “Duplicate Symbol” compile error. He thought this had something to do with one of my Clarion accessories, but it turns out the problem is actually caused by Clarion 6.3.9058. Here’s an example of the error..

This blog post explains what causes this compile error, and how to go about fixing it.

Buried away in the Clarion 6.3.9058 change log, SoftVelocity added this entry:

CHANGE: Win32.lib – Update list of entries used for SHELL32.DLL

What? You don’t read the change logs! Don’t worry, you’re not alone..

What does that entry actually mean? In the past certain Windows API functions had to be manually “added” to Clarion APPs, but using LibMaker to create a LIB file from the Windows DLL, adding that LIB to your APPs project includes, and then manually prototyping the functions in your global map.

In Clarion 6.3.9058 SoftVelocity added a bunch of new functions into the Clarion LIB files. So, if you had manually created your own LIBs and added them to your APP, Clarion would now regard your prototyped functions as duplicates. Make sense?

Unfortunately there’s no published list of which new functions were added! So I took it upon myself to publish such a list. Here it is..

First, the following two functions have been deprecated:

Shl1632_ThunkData32 and Shl3216_ThunkData32

The following 226 functions have been added:

Activate_RunDLL, AppCompat_RunDLLW, CallCPLEntry16, CDefFolderMenu_Create, CDefFolderMenu_Create2, Control_FillCache_RunDLLA, Control_FillCache_RunDLLW, Control_RunDLLA, Control_RunDLLAsUserW, Control_RunDLLW, DAD_AutoScroll, DAD_DragEnterEx, DAD_DragEnterEx2, DAD_DragLeave, DAD_DragMove, DAD_SetDragImage, DAD_ShowDragImage, DllCanUnloadNow, DllGetClassObject, DllGetVersion, DllInstall, DllRegisterServer, DllUnregisterServer, DriveType, ExtractIconExW, FindExeDlgProc, GetFileNameFromBrowse, ILAppendID, ILClone, ILCloneFirst, ILCombine, ILCreateFromPath, ILCreateFromPathA, ILCreateFromPathW, ILFindChild, ILFindLastID, ILFree, ILGetNext, ILGetSize, ILIsEqual, ILIsParent, ILLoadFromStream, ILRemoveLastID, ILSaveToStream, IsLFNDrive, IsLFNDriveA, IsLFNDriveW, IsNetDrive, IsUserAnAdmin, OpenAs_RunDLLA, OpenAs_RunDLLW, OpenRegStream, Options_RunDLL, Options_RunDLLA, Options_RunDLLW, PathCleanupSpec, PathGetShortPath, PathIsExe, PathIsSlowA, PathIsSlowW, PathMakeUniqueName, PathProcessCommand, PathQualify, PathResolve, PathYetAnotherMakeUniqueName, PickIconDlg, PifMgr_CloseProperties, PifMgr_GetProperties, PifMgr_OpenProperties, PifMgr_SetProperties, PrintersGetCommand_RunDLLA, PrintersGetCommand_RunDLLW, ReadCabinetState, RealDriveType, RestartDialog, RestartDialogEx, SHAddFromPropSheetExtArray, SHAlloc, SHAllocShared, SHBindToParent, SHBrowseForFolderW, SHChangeNotification_Lock, SHChangeNotification_Unlock, SHChangeNotifyDeregister, SHChangeNotifyRegister, SHChangeNotifySuspendResume, SHCloneSpecialIDList, SHCLSIDFromString, SHCoCreateInstance, SHCreateDirectory, SHCreateDirectoryExA, SHCreateDirectoryExW, SHCreateFileExtractIconW, SHCreateLocalServerRunDll, SHCreateProcessAsUserW, SHCreatePropSheetExtArray, SHCreateQueryCancelAutoPlayMoniker, SHCreateShellFolderView, SHCreateShellFolderViewEx, SHCreateShellItem, SHCreateStdEnumFmtEtc, SHDefExtractIconA, SHDefExtractIconW, SHDestroyPropSheetExtArray, SHDoDragDrop, Shell_GetCachedImageIndex, Shell_GetImageLists, Shell_MergeMenus, Shell_NotifyIconW, ShellExec_RunDLL, ShellExec_RunDLLA, ShellExec_RunDLLW, ShellExecuteExW, ShellHookProc, ShellMessageBoxA, ShellMessageBoxW, SHEmptyRecycleBinA, SHEmptyRecycleBinW, SHEnableServiceObject, SHEnumerateUnreadMailAccountsW, SHExtractIconsW, SHFileOperationW, SHFind_InitMenuPopup, SHFindFiles, SHFlushClipboard, SHFlushSFCache, SHFree, SHFreeShared, SHGetAttributesFromDataObject, SHGetDataFromIDListW, SHGetDiskFreeSpaceA, SHGetDiskFreeSpaceExA, SHGetDiskFreeSpaceExW, SHGetFileInfoW, SHGetFolderLocation, SHGetFolderPathA, SHGetFolderPathAndSubDirA, SHGetFolderPathAndSubDirW, SHGetFolderPathW, SHGetIconOverlayIndexA, SHGetIconOverlayIndexW, SHGetImageList, SHGetNewLinkInfo, SHGetNewLinkInfoA, SHGetNewLinkInfoW, SHGetPathFromIDListW, SHGetRealIDL, SHGetSetFolderCustomSettingsW, SHGetSetSettings, SHGetSettings, SHGetShellStyleHInstance, SHGetSpecialFolderPathA, SHGetSpecialFolderPathW, SHGetUnreadMailCountW, SHHandleUpdateImage, SHHelpShortcuts_RunDLLA, SHHelpShortcuts_RunDLLW, SHILCreateFromPath, SHInvokePrinterCommandA, SHInvokePrinterCommandW, SHIsFileAvailableOffline, SHLimitInputEdit, SHLoadNonloadedIconOverlayIdentifiers, SHLoadOLE, SHLockShared, SHMapIDListToImageListIndexAsync, SHMapPIDLToSystemImageListIndex, SHMultiFileProperties, SHObjectProperties, SHOpenFolderAndSelectItems, SHOpenPropSheetW, SHParseDisplayName, SHPathPrepareForWriteA, SHPathPrepareForWriteW, SHPropStgCreate, SHPropStgReadMultiple, SHPropStgWriteMultiple, SHQueryRecycleBinA, SHQueryRecycleBinW, SHReplaceFromPropSheetExtArray, SHRestricted, SHRunControlPanel, SHSetInstanceExplorer, SHSetLocalizedName, SHSetUnreadMailCountW, SHShellFolderView_Message, SHSimpleIDListFromPath, SHStartNetConnectionDialogW, SHTestTokenMembership, SHUnlockShared, SHUpdateImageA, SHUpdateImageW, SHUpdateRecycleBinIcon, SHValidateUNC, SignalFileOpen, StrChrA, StrChrIA, StrChrIW, StrChrW, StrCmpNA, StrCmpNIA, StrCmpNIW, StrCmpNW, StrCpyNA, StrCpyNW, StrNCmpA, StrNCmpIA, StrNCmpIW, StrNCmpW, StrNCpyA, StrNCpyW, StrRChrA, StrRChrIA, StrRChrIW, StrRChrW, StrRStrA, StrRStrIA, StrRStrIW, StrRStrW, StrStrA, StrStrIA, StrStrIW, StrStrW, Win32DeleteFile, WOWShellExecute, WriteCabinetState

If you have been manually “adding” any of these functions into your APPs by creating your own LIBs, you will now receive duplicate symbol errors. You need to remove your LIB to fix this compile error. And you need to change your function prototypes in your global map as follows:

From:

module(‘shell32.lib’)

SHGetFolderPath(long,long,long,long,*cstring),long,pascal,raw,name(‘SHGetFolderPathA’)

end

To:

module(‘Clarion Internal’)

SHGetFolderPath(long,long,long,long,*cstring),long,pascal,raw,name(‘SHGetFolderPathA’)

end

That should fix the problem!