332 lines
8.1 KiB
C
332 lines
8.1 KiB
C
/*
|
|
* OLE2DISP library
|
|
*
|
|
* Copyright 1995 Martin von Loewis
|
|
*/
|
|
|
|
#include <string.h>
|
|
#include "winerror.h"
|
|
#include "ole.h"
|
|
#include "oleauto.h"
|
|
#include "wine/obj_base.h"
|
|
#include "heap.h"
|
|
#include "ldt.h"
|
|
#include "debug.h"
|
|
|
|
/* This implementation of the BSTR API is 16-bit only. It
|
|
represents BSTR as a 16:16 far pointer, and the strings
|
|
as ISO-8859 */
|
|
|
|
/******************************************************************************
|
|
* BSTR_AllocBytes [Internal]
|
|
*/
|
|
static BSTR16 BSTR_AllocBytes(int n)
|
|
{
|
|
void *ptr = SEGPTR_ALLOC(n);
|
|
return (BSTR16)SEGPTR_GET(ptr);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* BSTR_Free [INTERNAL]
|
|
*/
|
|
static void BSTR_Free(BSTR16 in)
|
|
{
|
|
SEGPTR_FREE( PTR_SEG_TO_LIN(in) );
|
|
}
|
|
|
|
/******************************************************************************
|
|
* BSTR_GetAddr [INTERNAL]
|
|
*/
|
|
static void* BSTR_GetAddr(BSTR16 in)
|
|
{
|
|
return in ? PTR_SEG_TO_LIN(in) : 0;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* SysAllocString16 [OLE2DISP.2]
|
|
*/
|
|
BSTR16 WINAPI SysAllocString16(LPOLESTR16 in)
|
|
{
|
|
BSTR16 out=BSTR_AllocBytes(strlen(in)+1);
|
|
if(!out)return 0;
|
|
strcpy(BSTR_GetAddr(out),in);
|
|
return out;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* SysAllocString32 [OLEAUT32.2]
|
|
*/
|
|
BSTR WINAPI SysAllocString(LPOLESTR in)
|
|
{
|
|
/* Delegate this to the SysAllocStringLen32 method. */
|
|
return SysAllocStringLen(in, lstrlenW(in));
|
|
}
|
|
|
|
/******************************************************************************
|
|
* SysReAllocString16 [OLE2DISP.3]
|
|
*/
|
|
INT16 WINAPI SysReAllocString16(LPBSTR16 old,LPOLESTR16 in)
|
|
{
|
|
BSTR16 new=SysAllocString16(in);
|
|
BSTR_Free(*old);
|
|
*old=new;
|
|
return 1;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* SysReAllocString32 [OLEAUT32.3]
|
|
*/
|
|
INT WINAPI SysReAllocString(LPBSTR old,LPOLESTR in)
|
|
{
|
|
/*
|
|
* Sanity check
|
|
*/
|
|
if (old==NULL)
|
|
return 0;
|
|
|
|
/*
|
|
* Make sure we free the old string.
|
|
*/
|
|
if (*old!=NULL)
|
|
SysFreeString(*old);
|
|
|
|
/*
|
|
* Allocate the new string
|
|
*/
|
|
*old = SysAllocString(in);
|
|
|
|
return 1;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* SysAllocStringLen16 [OLE2DISP.4]
|
|
*/
|
|
BSTR16 WINAPI SysAllocStringLen16(char *in, int len)
|
|
{
|
|
BSTR16 out=BSTR_AllocBytes(len+1);
|
|
if(!out)return 0;
|
|
strcpy(BSTR_GetAddr(out),in);
|
|
return out;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* SysAllocStringLen32 [OLEAUT32.4]
|
|
*
|
|
* In "Inside OLE, second edition" by Kraig Brockshmidt. In the Automation
|
|
* section, he describes the DWORD value placed before the BSTR data type.
|
|
* he describes it as a "DWORD count of characters". By experimenting with
|
|
* a windows application, this count seems to be a DWORD count of bytes in
|
|
* the string. Meaning that the count is double the number of wide
|
|
* characters in the string.
|
|
*/
|
|
BSTR WINAPI SysAllocStringLen(WCHAR *in, int len)
|
|
{
|
|
DWORD bufferSize;
|
|
DWORD* newBuffer;
|
|
WCHAR* stringBuffer;
|
|
|
|
/*
|
|
* Find the lenth of the buffer passed-in in bytes.
|
|
*/
|
|
bufferSize = len * sizeof (WCHAR);
|
|
|
|
/*
|
|
* Allocate a new buffer to hold the string.
|
|
* dont't forget to keep an empty spot at the begining of the
|
|
* buffer for the character count and an extra character at the
|
|
* end for the NULL.
|
|
*/
|
|
newBuffer = (DWORD*)HeapAlloc(GetProcessHeap(),
|
|
0,
|
|
bufferSize + sizeof(WCHAR) + sizeof(DWORD));
|
|
|
|
/*
|
|
* If the memory allocation failed, return a null pointer.
|
|
*/
|
|
if (newBuffer==0)
|
|
return 0;
|
|
|
|
/*
|
|
* Copy the length of the string in the placeholder.
|
|
*/
|
|
*newBuffer = bufferSize;
|
|
|
|
/*
|
|
* Skip the byte count.
|
|
*/
|
|
newBuffer++;
|
|
|
|
/*
|
|
* Copy the information in the buffer.
|
|
* Since it is valid to pass a NULL pointer here, we'll initialize the
|
|
* buffer to nul if it is the case.
|
|
*/
|
|
if (in != 0)
|
|
memcpy(newBuffer, in, bufferSize);
|
|
else
|
|
memset(newBuffer, 0, bufferSize);
|
|
|
|
/*
|
|
* Make sure that there is a nul character at the end of the
|
|
* string.
|
|
*/
|
|
stringBuffer = (WCHAR*)newBuffer;
|
|
stringBuffer[len] = L'\0';
|
|
|
|
return (LPWSTR)stringBuffer;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* SysReAllocStringLen16 [OLE2DISP.5]
|
|
*/
|
|
int WINAPI SysReAllocStringLen16(BSTR16 *old,char *in,int len)
|
|
{
|
|
BSTR16 new=SysAllocStringLen16(in,len);
|
|
BSTR_Free(*old);
|
|
*old=new;
|
|
return 1;
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
* SysReAllocStringLen32 [OLEAUT32.5]
|
|
*/
|
|
int WINAPI SysReAllocStringLen(BSTR* old, WCHAR* in, int len)
|
|
{
|
|
/*
|
|
* Sanity check
|
|
*/
|
|
if (old==NULL)
|
|
return 0;
|
|
|
|
/*
|
|
* Make sure we free the old string.
|
|
*/
|
|
if (*old!=NULL)
|
|
SysFreeString(*old);
|
|
|
|
/*
|
|
* Allocate the new string
|
|
*/
|
|
*old = SysAllocStringLen(in, len);
|
|
|
|
return 1;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* SysFreeString16 [OLE2DISP.6]
|
|
*/
|
|
void WINAPI SysFreeString16(BSTR16 in)
|
|
{
|
|
BSTR_Free(in);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* SysFreeString32 [OLEAUT32.6]
|
|
*/
|
|
void WINAPI SysFreeString(BSTR in)
|
|
{
|
|
DWORD* bufferPointer;
|
|
|
|
/*
|
|
* We have to be careful when we free a BSTR pointer, it points to
|
|
* the beginning of the string but it skips the byte count contained
|
|
* before the string.
|
|
*/
|
|
bufferPointer = (DWORD*)in;
|
|
|
|
bufferPointer--;
|
|
|
|
/*
|
|
* Free the memory from it's "real" origin.
|
|
*/
|
|
HeapFree(GetProcessHeap(), 0, bufferPointer);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* SysStringLen16 [OLE2DISP.7]
|
|
*/
|
|
int WINAPI SysStringLen16(BSTR16 str)
|
|
{
|
|
return strlen(BSTR_GetAddr(str));
|
|
}
|
|
|
|
/******************************************************************************
|
|
* SysStringLen32 [OLEAUT32.7]
|
|
*
|
|
* The Windows documentation states that the length returned by this function
|
|
* is not necessarely the same as the length returned by the _lstrlenW method.
|
|
* It is the same number that was passed in as the "len" parameter if the
|
|
* string was allocated with a SysAllocStringLen method call.
|
|
*/
|
|
int WINAPI SysStringLen(BSTR str)
|
|
{
|
|
DWORD* bufferPointer;
|
|
|
|
/*
|
|
* The length of the string (in bytes) is contained in a DWORD placed
|
|
* just before the BSTR pointer
|
|
*/
|
|
bufferPointer = (DWORD*)str;
|
|
|
|
bufferPointer--;
|
|
|
|
return (int)(*bufferPointer/sizeof(WCHAR));
|
|
}
|
|
|
|
/******************************************************************************
|
|
* SysStringByteLen [OLEAUT32.149]
|
|
*
|
|
* The Windows documentation states that the length returned by this function
|
|
* is not necessarely the same as the length returned by the _lstrlenW method.
|
|
* It is the same number that was passed in as the "len" parameter if the
|
|
* string was allocated with a SysAllocStringLen method call.
|
|
*/
|
|
int WINAPI SysStringByteLen(BSTR str)
|
|
{
|
|
return SysStringLen(str)*sizeof(WCHAR);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* CreateDispTypeInfo [OLE2DISP.31]
|
|
*/
|
|
OLESTATUS WINAPI CreateDispTypeInfo16(
|
|
INTERFACEDATA *pidata,
|
|
LCID lcid,
|
|
LPVOID **pptinfo /*ITypeInfo*/
|
|
) {
|
|
FIXME(ole,"(%p,%ld,%p),stub\n",pidata,lcid,pptinfo);
|
|
return 0;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* RegisterActiveObject [OLE2DISP.35]
|
|
*/
|
|
OLESTATUS WINAPI RegisterActiveObject16(
|
|
IUnknown * punk,REFCLSID rclsid,DWORD dwFlags, DWORD * pdwRegister
|
|
) {
|
|
char buf[80];
|
|
WINE_StringFromCLSID(rclsid,buf);
|
|
FIXME(ole,"(%p,%s,0x%08lx,%p):stub\n",punk,buf,dwFlags,pdwRegister);
|
|
return 0;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* OleTranslateColor [OLEAUT32.421]
|
|
*/
|
|
INT WINAPI OleTranslateColor(
|
|
LONG clr,
|
|
HPALETTE hpal,
|
|
COLORREF* pColorRef)
|
|
{
|
|
FIXME(ole,"():stub\n");
|
|
|
|
*pColorRef = clr;
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
|
|
|
|
|