74 lines
1.8 KiB
C
74 lines
1.8 KiB
C
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#include "ctlspriv.h"
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#include <limits.h>
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/*
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* Creates a buffer for a unicode string, and then copies the ANSI text
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* into it (converting it to unicode in the process)
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*
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* The returned pointer should be freed with LocalFree after use.
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*/
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LPWSTR ProduceWFromA( UINT uiCodePage, LPCSTR psz ) {
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LPWSTR pszW;
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int cch;
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if (psz == NULL || psz == LPSTR_TEXTCALLBACKA)
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return (LPWSTR)psz;
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// The old code would call lstrlen and lstrcpy which would fault internal to the
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// api, this should do about the same...
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if (IsBadReadPtr(psz,1))
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return NULL; // For now lets try not setting a string...
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cch = MultiByteToWideChar(uiCodePage, 0, psz, -1, NULL, 0);
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if (cch == 0)
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cch = 1;
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pszW = LocalAlloc( LMEM_FIXED, cch * sizeof(WCHAR) );
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if (pszW != NULL ) {
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if (MultiByteToWideChar( uiCodePage, MB_PRECOMPOSED, psz, -1, pszW,
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cch ) == FALSE) {
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LocalFree(pszW);
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pszW = NULL;
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}
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}
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return pszW;
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}
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/*
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* Creates a buffer for a unicode string, and then copies the ANSI text
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* into it (converting it to unicode in the process)
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*
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* The returned pointer should be freed with LocalFree after use.
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*/
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LPSTR ProduceAFromW( UINT uiCodePage, LPCWSTR psz ) {
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LPSTR pszA;
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int cch;
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if (psz == NULL || psz == LPSTR_TEXTCALLBACKW)
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return (LPSTR)psz;
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cch = WideCharToMultiByte(uiCodePage, 0, psz, -1, NULL, 0, NULL, NULL);
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if (cch == 0)
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cch = 1;
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pszA = LocalAlloc( LMEM_FIXED, cch * sizeof(char) );
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if (pszA != NULL ) {
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if (WideCharToMultiByte(uiCodePage, 0, psz, -1, pszA, cch, NULL, NULL) ==
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FALSE) {
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LocalFree(pszA);
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pszA = NULL;
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}
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}
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return pszA;
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}
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