NSIS plugins are regular DLLs that export functions with typical def-files like this:
LIBRARY MY_NSIS_PLUGIN
EXPORTS
AddUser PRIVATE
CreateHive PRIVATE
...
They should be put to “C:\Program Files\NSIS\Plugins\x86-ansi” directory for NSIS v3.x. From nsi-script their functions can be called like this:
Function MyFunc ... MY_NSIS_PLUGIN::CreateHive ... FunctionEnd
and can be tested with C++ code like this:
typedef bool (*CreateHiveFunc)();
int main()
{
auto h = ::LoadLibrary(L"C:\\Program Files\\NSIS\\Plugins\\x86-ansi\\MY_NSIS_PLUGIN.dll");
auto e = ::GetLastError();
FARPROC proc = GetProcAddress(h, "CreateHive");
e = ::GetLastError();
CreateHiveFunc func = (CreateHiveFunc)(proc);
bool val = func();
return 0;
}
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