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check if network connection is permanent
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function IsPermanentConnection(const ALocalName: string): Boolean; | |
type | |
PNetResourceArray = ^TNetResourceArray; | |
TNetResourceArray = array [0 .. MaxInt div SizeOf(TNetResource) - 1] of TNetResource; | |
var | |
I, BufSize, NetResult: Integer; | |
Count, Size: LongWord; | |
NetHandle: THandle; | |
NetResources: PNetResourceArray; | |
RemoteNameInfo: array [0 .. 1023] of Byte; | |
begin | |
Result := false; | |
if WNetOpenEnum(RESOURCE_REMEMBERED, RESOURCETYPE_DISK, 0, nil, NetHandle) <> NO_ERROR then | |
Exit; | |
try | |
BufSize := 50 * SizeOf(TNetResource); | |
GetMem(NetResources, BufSize); | |
try | |
while True do begin | |
Count := $FFFFFFFF; | |
Size := BufSize; | |
NetResult := WNetEnumResource(NetHandle, Count, NetResources, Size); | |
if NetResult = ERROR_MORE_DATA then begin | |
BufSize := Size; | |
ReallocMem(NetResources, BufSize); | |
Continue; | |
end; | |
if NetResult <> NO_ERROR then | |
Exit; | |
for I := 0 to Count - 1 do begin | |
if SameText(ALocalName, string(NetResources[I].lpLocalName)) then begin | |
Exit(True); | |
end; | |
end; | |
end; | |
finally | |
FreeMem(NetResources, BufSize); | |
end; | |
finally | |
WNetCloseEnum(NetHandle); | |
end; | |
end; |
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