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/*** |
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*marshal.h |
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* |
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* Copyright (c) Microsoft Corporation. All rights reserved. |
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* |
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*Purpose: Marshalling classes |
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* |
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* [Public] |
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* |
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****/ |
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#pragma once |
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#ifndef _INC_MSCLR_MARSHAL |
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#define _INC_MSCLR_MARSHAL |
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#using <mscorlib.dll> |
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#using <system.dll> |
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#include <sal.h> |
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#include <windows.h> |
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#include <vcclr.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <errno.h> |
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#include <memory> |
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#pragma comment(lib, "comsupp.lib") |
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#pragma comment(lib, "oleaut32.lib") |
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#pragma warning(push) |
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#pragma warning(error : 4996) |
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namespace msclr{ |
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namespace interop{ |
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namespace details |
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{ |
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#define _EXCEPTION_GREATER_THAN_INT_MAX "Size of string exceeds INT_MAX." |
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#define _EXCEPTION_NULLPTR "NULLPTR is not supported for this conversion." |
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#define _EXCEPTION_MB2WC "Conversion from MultiByte to WideChar failed. Please check the content of the string and/or locale settings." |
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#define _EXCEPTION_WC2MB "Conversion from WideChar to MultiByte failed. Please check the content of the string and/or locale settings." |
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inline __checkReturn size_t GetAnsiStringSize(System::String^ _str) |
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{ |
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size_t _size = 0; |
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cli::pin_ptr<const wchar_t> _pinned_ptr = PtrToStringChars(_str); |
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_size = ::WideCharToMultiByte(CP_THREAD_ACP, WC_NO_BEST_FIT_CHARS, _pinned_ptr, _str->Length, NULL, 0, NULL,NULL); |
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if (_size == 0 && _str->Length != 0) |
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{ |
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throw gcnew System::ArgumentException(_EXCEPTION_WC2MB); |
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} |
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// adding 1 for terminating nul |
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_size+=1; |
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return _size; |
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} |
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inline void WriteAnsiString(__out_ecount_full_z(_size) char* _buf, size_t _size, System::String^ _str) |
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{ |
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cli::pin_ptr<const wchar_t> _pinned_ptr = PtrToStringChars(_str); |
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//checking for overflow |
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if (_size > INT_MAX) |
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{ |
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_to_object = _ptr; |
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} |
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~context_node() |
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{ |
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this->!context_node(); |
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} |
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protected: |
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!context_node() |
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{ |
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if(_ptr != NULL) |
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delete [] _ptr; |
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} |
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}; |
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template<> |
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ref class context_node<const wchar_t*, System::String^> : |
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public context_node_base |
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{ |
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private: |
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System::IntPtr _ip; |
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public: |
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context_node(__out_z const wchar_t*& _to_object, System::String^ _from_object) |
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{ |
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_ip = System::Runtime::InteropServices::Marshal::StringToHGlobalUni (_from_object); |
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_to_object = static_cast<wchar_t*>(_ip.ToPointer()); |
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} |
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~context_node() |
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{ |
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this->!context_node(); |
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} |
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protected: |
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!context_node() |
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{ |
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if(_ip != System::IntPtr::Zero) |
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System::Runtime::InteropServices::Marshal::FreeHGlobal(_ip); |
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} |
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}; |
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} //namespace interop |
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} //namespace msclr |
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#pragma warning(pop) // error:4996 |
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#endif // _INC_MSCLR_MARSHAL |
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