#57 SHGetSpecialFolderPathW could not be located

[Anonymous]

I get a stop alert box
Title: "matrix.exe - Entry Point Not Found"
Alert: "The procedure entry point
SHGetSpecialFolderPathW could not be located in the
dynamic link library SHELL32.dll"

Program will not launch

OS: NT4 SP6
System: P3 800 with 512MB RAM
contact email: joseph dot lindsay at courts dot govt dot
nz

[Nobody/Anonymous]

Screen dump of alert message

[~Happy Dude~]

Logged In: YES
user_id=435794

Hey Joe,

This problem arises in NT4 and Win95 if you don't have the
Microsoft 'Desktop Update' installed. See the NT4 question
at the end of the FAQ for information on this desktop update:

http://zmatrix.sourceforge.net/help/FAQ.html

[James R. Twine]

Logged In: YES
user_id=25727

This problem is easy to fix (I had the exact problem with one
of my products). Systems that have updated service packs
on them (or any recent "real" MS applications like Office and
likely IE) will have a DLL installed called "SHFolder.dll". This
DLL contains the SHGetSpecialFolderPath* functions (and
other SH functions missing from Shell32.dll when Active
Desktop was not installed). Finding the function is as easy
as follows (the following code snippet comes from one of my
products, with the actual calls to the function replaced with
how they would be used in the matrix.cpp file; you should be
able to copy and paste it directly):
-----
//
// Typedefs For SHGetSpecialFolderPath (GSFPFP) And
// SHGetFolderPath (GFPFP)...
//
typedef BOOL (STDAPICALLTYPE *GSFPFP)( HWND,
LPTSTR, int, BOOL );
typedef HRESULT (STDAPICALLTYPE *GFPFP)( HWND, int,
HANDLE, DWORD, LPTSTR );

HMODULE hDLL = ::LoadLibrary( _T( "ShFolder.dll" ) );
GSFPFP pSHGetSpecialFolderPath = NULL;
GFPFP pSHGetFolderPath = NULL;

if( hDLL ) // If ShFolder
Found
{
pSHGetFolderPath = (GFPFP)::GetProcAddress( hDLL,
_T( "SHGetFolderPathA" ) ); // Get
Function Address
if( !pSHGetFolderPath ) // If Failed
{
::FreeLibrary( hDLL ); // Free The
Library
hDLL = NULL; // NULL The
DLL Handle (Try Other DLL Below)
}
else // If Found
{
if( !pSHGetFolderPath( ghWnd,
CSIDL_COMMON_STARTUP,
NULL, SHGFP_TYPE_CURRENT,
AllUsersStartupDirectoryPath ) )
{
// ...
}
if( !pSHGetFolderPath( ghWnd, CSIDL_STARTUP,
NULL,
SHGFP_TYPE_CURRENT,
CurrentUserStartupDirectoryPath ) )
{
// ...
}
if( !pSHGetFolderPath( ghWnd, CSIDL_APPDATA,
NULL,
SHGFP_TYPE_CURRENT,
CurrentUserAppDataDirectoryPath ) )
{
// ...
}
}
}
if( !hDLL ) // If Not Found (Or
Failed Above)
{
hDLL = ::LoadLibrary( _T( "Shell32.dll" ) ); // Try
Shell32 DLL
if( !hDLL ) // If Failed (Should
Not Happen)
{
return; // Stop Here
}
pSHGetSpecialFolderPath = (GSFPFP)::GetProcAddress(
hDLL, _T( "SHGetSpecialFolderPathA" ) ); //
Get Function Address
if( !pSHGetSpecialFolderPath ) // If Failed
{
::FreeLibrary( hDLL ); // Free The
Library
return; // Stop Here
}
if( !pSHGetSpecialFolderPath( ghWnd,
AllUsersStartupDirectoryPath,
CSIDL_COMMON_STARTUP, FALSE ) )
{
// ...
}
if( !pSHGetSpecialFolderPath( ghWnd,
CurrentUserStartupDirectoryPath, CSIDL_STARTUP,
FALSE ) )
{
// ...
}
if( !pSHGetSpecialFolderPath( ghWnd,
CurrentUserAppDataDirectoryPath,
CSIDL_APPDATA,
FALSE ) )
{
// ...
}
}
::FreeLibrary( hDLL ); // Free The
Loaded Library
-----

Peace!

-=- James R. Twine