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78 lines
2.7 KiB
78 lines
2.7 KiB
#ifndef __UTILS_H__
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#define __UTILS_H__
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#include <windows.h>
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#include <olectl.h>
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#include <shlwapi.h>
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// BUGBUG - remove and include wininet.h
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#include "autoprox.hxx"
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/********************************************************************************************/
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// ClassID and GUID helpers
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HRESULT GetScriptEngineClassIDFromName(LPCSTR pszLanguage,LPSTR pszBuff,UINT cBuffSize);
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/********************************************************************************************/
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// String Helper functions and macros
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// allocates a temporary buffer that will disappear when it goes out of scope
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// NOTE: be careful of that -- make sure you use the string in the same or
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// nested scope in which you created this buffer. people should not use this
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// class directly. use the macro(s) below.
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//
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class TempBuffer {
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public:
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TempBuffer(ULONG cBytes) {
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m_pBuf = (cBytes <= 120) ? (char *)&m_szTmpBuf : (new(char[cBytes]));
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m_fHeapAlloc = (cBytes > 120);
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}
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~TempBuffer() {
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if (m_pBuf && m_fHeapAlloc) delete m_pBuf;
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}
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void *GetBuffer() {
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return m_pBuf;
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}
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private:
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void *m_pBuf;
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// we'll use this temp buffer for small cases.
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//
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char m_szTmpBuf[120];
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unsigned m_fHeapAlloc:1;
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};
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// given and ANSI String, copy it into a wide buffer.
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// be careful about scoping when using this macro!
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//
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// how to use the below two macros:
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//
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// ...
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// LPSTR pszA;
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// pszA = MyGetAnsiStringRoutine();
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// MAKE_WIDEPTR_FROMANSI(pwsz, pszA);
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// MyUseWideStringRoutine(pwsz);
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// ...
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//
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// similarily for MAKE_ANSIPTR_FROMWIDE. note that the first param does not
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// have to be declared, and no clean up must be done.
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//
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#define MAKE_WIDEPTR_FROMANSI(ptrname, ansistr) \
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long __l##ptrname = (lstrlen(ansistr) + 1) * sizeof(WCHAR); \
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TempBuffer __TempBuffer##ptrname(__l##ptrname); \
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MultiByteToWideChar(CP_ACP, 0, ansistr, -1, (LPWSTR)__TempBuffer##ptrname.GetBuffer(), __l##ptrname); \
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LPWSTR ptrname = (LPWSTR)__TempBuffer##ptrname.GetBuffer()
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#define MAKE_ANSIPTR_FROMWIDE(ptrname, widestr) \
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long __l##ptrname = (lstrlenW(widestr) + 1) * 2 * sizeof(char); \
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TempBuffer __TempBuffer##ptrname(__l##ptrname); \
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WideCharToMultiByte(CP_ACP, 0, widestr, -1, (LPSTR)__TempBuffer##ptrname.GetBuffer(), __l##ptrname, NULL, NULL); \
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LPSTR ptrname = (LPSTR)__TempBuffer##ptrname.GetBuffer()
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LPWSTR MakeWideStrFromAnsi( LPCSTR, BYTE bType);
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#define STR_BSTR 0
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#define STR_OLESTR 1
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#define BSTRFROMANSI(x) (BSTR)MakeWideStrFromAnsi((LPSTR)(x), STR_BSTR)
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#define OLESTRFROMANSI(x) (LPOLESTR)MakeWideStrFromAnsi((LPSTR)(x), STR_OLESTR)
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int ConvertAnsiDayToInt(LPSTR szday);
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#endif
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