Retrieves the reference number of a specified plug-in. You can send this message explicitly or use the Editor_GetRef inline function.
EE_GET_REF
wParam = 0;
lParam = (LPARAM)(ATOM)atom;
atom
Specifies the atom of a specified plug-in file name.
The return value is the reference number of a specified plug-in. If the return value is zero, the specified plug-in can be safely unloaded from EmEditor.
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