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Don't set dwShareMode to nonzero #222

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Don't set dwShareMode to nonzero #222

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7 changes: 1 addition & 6 deletions src/serialport_win.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -86,15 +86,10 @@ void OpenBaton::Execute() {
strncpy(path, "\\\\.\\", 4);
strncpy(path + 4, path + 20, 10);

int shareMode = FILE_SHARE_READ | FILE_SHARE_WRITE;
if (lock) {
shareMode = 0;
}

HANDLE file = CreateFile(
path,
GENERIC_READ | GENERIC_WRITE,
shareMode, // dwShareMode 0 Prevents other processes from opening if they request delete, read, or write access
0, // dwShareMode 0 (exclusive access) is the only supported mode for Communications Resource
NULL,
OPEN_EXISTING,
FILE_FLAG_OVERLAPPED, // allows for reading and writing at the same time and sets the handle for asynchronous I/O
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