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.net - 'System::String ^' to 'LPCWSTR'

I want to convert System::String ^ to LPCWSTR.

for

FindFirstFile(LPCWSTR,WIN32_FIND_DATA); 

Please help.

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The easiest way to do this in C++/CLI is to use pin_ptr:

#include <vcclr.h>

void CallFindFirstFile(System::String^ s)
{
    WIN32_FIND_DATA data;
    pin_ptr<const wchar_t> wname = PtrToStringChars(s);
    FindFirstFile(wname, &data);
}

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