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* Use shfolder.dll for CSIDL_COMMON_DOCUMENTS on 95/98 if possible

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* Information about API calls for special folders


git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@5245 212acab6-be3b-0410-9dea-997c60f758d6
This commit is contained in:
joostverburg 2007-08-18 12:44:23 +00:00
parent f374bc87ec
commit 842dcbf544
1 changed files with 29 additions and 5 deletions
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34
Source/exehead/util.c
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@ -629,10 +629,34 @@ char * NSISCALL GetNSISString(char *outbuf, int strtab)
int x = 2;
DWORD ver = GetVersion();
BOOL all_users_9x_capable = !(
(ver & 0x80000000) && // 9x
(LOWORD(ver) != 0x5A04) && // not ME
(fldrs[2] != CSIDL_COMMON_APPDATA) // not all users's appdata
/*
SHGetFolderPath as provided by shfolder.dll is used to get special folders
unless the installer is running on Windows 95/98. For 95/98 shfolder.dll is
only used for the Application Data and Documents folder (if the DLL exists).
Oherwise, the old SHGetSpecialFolderLocation API is called.
There reason for not using shfolder.dll for all folders on 95/98 is that
some unsupported folders (such as the Start Menu folder for all users) are
simulated instead of returning an error so whe can fall back on the folder
for the current user.
SHGetFolderPath in shell32.dll could be called directly for Windows versions
later than 95/98 but there is no need to do so, because shfolder.dll is still
provided and calls shell32.dll.
*/
BOOL use_shfolder = (
// Use shfolder if not on 95/98
!((ver & 0x80000000) && (LOWORD(ver) != 0x5A04)) ||
// Unless the Application Data or Documents folder is requested
((fldrs[2] == CSIDL_COMMON_APPDATA) ||
(fldrs[2] == CSIDL_COMMON_DOCUMENTS))
);
if (g_exec_flags.all_user_var)
@ -660,7 +684,7 @@ char * NSISCALL GetNSISString(char *outbuf, int strtab)
while (x--)
{
if (g_SHGetFolderPath && all_users_9x_capable)
if (g_SHGetFolderPath && use_shfolder)
{
PFNSHGETFOLDERPATHA SHGetFolderPathFunc = (PFNSHGETFOLDERPATHA) g_SHGetFolderPath;
if (!SHGetFolderPathFunc(g_hwnd, fldrs[x], NULL, SHGFP_TYPE_CURRENT, out))