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Windows: Only use A: and B: for mounting when no other free drive letter available or when explicitly chosen by user. This avoid side effects when mounting volumes as removable media and automatic drive selection (e.g. A: become invisible in explorer after closing all explorer instances although it is still mounted).

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This commit is contained in:
Mounir IDRASSI
2016-04-28 10:36:04 +02:00
parent 91e3843732
commit 99de8a6dcd
2 changed files with 35 additions and 4 deletions
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8
src/Common/Dlgcode.c
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@@ -6760,11 +6760,13 @@ DWORD GetUsedLogicalDrives (void)
int GetFirstAvailableDrive ()
{
DWORD dwUsedDrives = GetUsedLogicalDrives();
int i;
int i, drive;
for (i = 0; i < 26; i++)
/* let A: and B: be used as last resort since they can introduce side effects */
for (i = 2; i < 28; i++)
{
if (!(dwUsedDrives & 1 << i))
drive = (i < 26) ? i : (i - 26);
if (!(dwUsedDrives & 1 << drive))
return i;
}