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New unicode support functions.

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Eric Kohl 2000-11-15 22:14:43 +00:00 committed by Alexandre Julliard
parent 8643f4e882
commit b7546b6831
2 changed files with 92 additions and 1 deletions
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3
dlls/comctl32/comctl32.h
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@ -82,5 +82,8 @@ extern HMODULE COMCTL32_hModule;
/* Internal function */
HWND COMCTL32_CreateToolTip (HWND);
INT Str_GetPtrWtoA (LPCWSTR lpSrc, LPSTR lpDest, INT nMaxLen);
BOOL Str_SetPtrAtoW (LPWSTR *lppDest, LPCSTR lpSrc);
#endif /* __WINE_COMCTL32_H */

90
dlls/comctl32/comctl32undoc.c
View File

@ -1,8 +1,10 @@
/*
* Undocumented functions from COMCTL32.DLL
*
* Copyright 1998 Eric Kohl <ekohl@abo.rhein-zeitung.de>
* Copyright 1998 Eric Kohl
* 1998 Juergen Schmied <j.schmied@metronet.de>
* 2000 Eric Kohl for CodeWeavers
*
* NOTES
* All of these functions are UNDOCUMENTED!! And I mean UNDOCUMENTED!!!!
* Do NOT rely on names or contents of undocumented structures and types!!!
@ -813,6 +815,92 @@ Str_SetPtrW (LPWSTR *lppDest, LPCWSTR lpSrc)
}
/**************************************************************************
* Str_GetPtrWtoA [internal]
*
* Converts a unicode string into a multi byte string
*
* PARAMS
* lpSrc [I] Pointer to the unicode source string
* lpDest [O] Pointer to caller supplied storage for the multi byte string
* nMaxLen [I] Size, in bytes, of the destination buffer
*
* RETURNS
* Length, in bytes, of the converted string.
*/
INT
Str_GetPtrWtoA (LPCWSTR lpSrc, LPSTR lpDest, INT nMaxLen)
{
INT len;
TRACE("(%s %p %d)\n", debugstr_w(lpSrc), lpDest, nMaxLen);
if (!lpDest && lpSrc)
return WideCharToMultiByte(CP_ACP, 0, lpSrc, -1, 0, 0, NULL, NULL);
if (nMaxLen == 0)
return 0;
if (lpSrc == NULL) {
lpDest[0] = '\0';
return 0;
}
len = WideCharToMultiByte(CP_ACP, 0, lpSrc, -1, 0, 0, NULL, NULL);
if (len >= nMaxLen)
len = nMaxLen - 1;
WideCharToMultiByte(CP_ACP, 0, lpSrc, -1, lpDest, len, NULL, NULL);
lpDest[len] = '\0';
return len;
}
/**************************************************************************
* Str_SetPtrAtoW [internal]
*
* Converts a multi byte string to a unicode string.
* If the pointer to the destination buffer is NULL a buffer is allocated.
* If the destination buffer is too small to keep the converted multi byte
* string the destination buffer is reallocated. If the source pointer is
* NULL, the destination buffer is freed.
*
* PARAMS
* lppDest [I/O] pointer to a pointer to the destination buffer
* lpSrc [I] pointer to a multi byte string
*
* RETURNS
* TRUE: conversion successful
* FALSE: error
*/
BOOL
Str_SetPtrAtoW (LPWSTR *lppDest, LPCSTR lpSrc)
{
TRACE("(%p %s)\n", lppDest, lpSrc);
if (lpSrc) {
INT len = MultiByteToWideChar(CP_ACP,0,lpSrc,-1,NULL,0);
LPWSTR ptr = COMCTL32_ReAlloc (*lppDest, len);
if (!ptr)
return FALSE;
MultiByteToWideChar(CP_ACP,0,lpSrc,-1,ptr,len);
*lppDest = ptr;
}
else {
if (*lppDest) {
COMCTL32_Free (*lppDest);
*lppDest = NULL;
}
}
return TRUE;
}
/**************************************************************************
* The DSA-API is a set of functions to create and manipulate arrays of
* fixed-size memory blocks. These arrays can store any kind of data