467 lines
11 KiB
C
467 lines
11 KiB
C
/*
|
|
* OLE2DISP library
|
|
*
|
|
* Copyright 1995 Martin von Loewis
|
|
*/
|
|
#include <string.h>
|
|
#include "windef.h"
|
|
#include "wingdi.h"
|
|
#include "winuser.h"
|
|
#include "winerror.h"
|
|
#include "olectl.h"
|
|
#include "oleauto.h"
|
|
#include "heap.h"
|
|
#include "ldt.h"
|
|
#include "debugtools.h"
|
|
|
|
DEFAULT_DEBUG_CHANNEL(ole);
|
|
|
|
/* 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(LPCOLESTR16 in)
|
|
{
|
|
BSTR16 out=BSTR_AllocBytes(strlen(in)+1);
|
|
if(!out)return 0;
|
|
strcpy(BSTR_GetAddr(out),in);
|
|
return out;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* SysAllocString [OLEAUT32.2]
|
|
*/
|
|
BSTR WINAPI SysAllocString(LPCOLESTR in)
|
|
{
|
|
/* Delegate this to the SysAllocStringLen32 method. */
|
|
return SysAllocStringLen(in, lstrlenW(in));
|
|
}
|
|
|
|
/******************************************************************************
|
|
* SysReAllocString16 [OLE2DISP.3]
|
|
*/
|
|
INT16 WINAPI SysReAllocString16(LPBSTR16 old,LPCOLESTR16 in)
|
|
{
|
|
BSTR16 new=SysAllocString16(in);
|
|
BSTR_Free(*old);
|
|
*old=new;
|
|
return 1;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* SysReAllocString [OLEAUT32.3]
|
|
*/
|
|
INT WINAPI SysReAllocString(LPBSTR old,LPCOLESTR 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(const char *in, int len)
|
|
{
|
|
BSTR16 out=BSTR_AllocBytes(len+1);
|
|
|
|
if (!out)
|
|
return 0;
|
|
|
|
/*
|
|
* 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)
|
|
strcpy(BSTR_GetAddr(out),in);
|
|
else
|
|
memset(BSTR_GetAddr(out), 0, len+1);
|
|
|
|
return out;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* SysAllocStringLen [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(const OLECHAR *in, unsigned 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,const char *in,int len)
|
|
{
|
|
BSTR16 new=SysAllocStringLen16(in,len);
|
|
BSTR_Free(*old);
|
|
*old=new;
|
|
return 1;
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
* SysReAllocStringLen [OLEAUT32.5]
|
|
*/
|
|
int WINAPI SysReAllocStringLen(BSTR* old, const OLECHAR* in, unsigned 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);
|
|
}
|
|
|
|
/******************************************************************************
|
|
* SysFreeString [OLEAUT32.6]
|
|
*/
|
|
void WINAPI SysFreeString(BSTR in)
|
|
{
|
|
DWORD* bufferPointer;
|
|
|
|
/* NULL is a valid parameter */
|
|
if(!in) return;
|
|
|
|
/*
|
|
* 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));
|
|
}
|
|
|
|
/******************************************************************************
|
|
* SysStringLen [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;
|
|
|
|
if (!str) return 0;
|
|
/*
|
|
* 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]
|
|
*/
|
|
HRESULT WINAPI CreateDispTypeInfo16(
|
|
INTERFACEDATA *pidata,
|
|
LCID lcid,
|
|
ITypeInfo **pptinfo
|
|
) {
|
|
FIXME("(%p,%ld,%p),stub\n",pidata,lcid,pptinfo);
|
|
return 0;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* RegisterActiveObject [OLE2DISP.35]
|
|
*/
|
|
HRESULT WINAPI RegisterActiveObject16(
|
|
IUnknown *punk, REFCLSID rclsid, DWORD dwFlags, unsigned long *pdwRegister
|
|
) {
|
|
FIXME("(%p,%s,0x%08lx,%p):stub\n",punk,debugstr_guid(rclsid),dwFlags,pdwRegister);
|
|
return 0;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* OleTranslateColor [OLEAUT32.421]
|
|
*
|
|
* Converts an OLE_COLOR to a COLORREF.
|
|
* See the documentation for conversion rules.
|
|
* pColorRef can be NULL. In that case the user only wants to test the
|
|
* conversion.
|
|
*/
|
|
HRESULT WINAPI OleTranslateColor(
|
|
OLE_COLOR clr,
|
|
HPALETTE hpal,
|
|
COLORREF* pColorRef)
|
|
{
|
|
COLORREF colorref;
|
|
BYTE b = HIBYTE(HIWORD(clr));
|
|
|
|
TRACE("(%08lx, %d, %p):stub\n", clr, hpal, pColorRef);
|
|
|
|
/*
|
|
* In case pColorRef is NULL, provide our own to simplify the code.
|
|
*/
|
|
if (pColorRef == NULL)
|
|
pColorRef = &colorref;
|
|
|
|
switch (b)
|
|
{
|
|
case 0x00:
|
|
{
|
|
if (hpal != 0)
|
|
*pColorRef = PALETTERGB(GetRValue(clr),
|
|
GetGValue(clr),
|
|
GetBValue(clr));
|
|
else
|
|
*pColorRef = clr;
|
|
|
|
break;
|
|
}
|
|
|
|
case 0x01:
|
|
{
|
|
if (hpal != 0)
|
|
{
|
|
PALETTEENTRY pe;
|
|
/*
|
|
* Validate the palette index.
|
|
*/
|
|
if (GetPaletteEntries(hpal, LOWORD(clr), 1, &pe) == 0)
|
|
return E_INVALIDARG;
|
|
}
|
|
|
|
*pColorRef = clr;
|
|
|
|
break;
|
|
}
|
|
|
|
case 0x02:
|
|
*pColorRef = clr;
|
|
break;
|
|
|
|
case 0x80:
|
|
{
|
|
int index = LOBYTE(LOWORD(clr));
|
|
|
|
/*
|
|
* Validate GetSysColor index.
|
|
*/
|
|
if ((index < COLOR_SCROLLBAR) || (index > COLOR_GRADIENTINACTIVECAPTION))
|
|
return E_INVALIDARG;
|
|
|
|
*pColorRef = GetSysColor(index);
|
|
|
|
break;
|
|
}
|
|
|
|
default:
|
|
return E_INVALIDARG;
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
/******************************************************************************
|
|
* SysAllocStringByteLen [OLEAUT32.150]
|
|
*
|
|
*/
|
|
BSTR WINAPI SysAllocStringByteLen(char *in, int len)
|
|
{
|
|
DWORD* newBuffer;
|
|
char* stringBuffer;
|
|
|
|
/*
|
|
* 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,
|
|
len + 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 = len;
|
|
|
|
/*
|
|
* 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, len);
|
|
|
|
/*
|
|
* Make sure that there is a nul character at the end of the
|
|
* string.
|
|
*/
|
|
stringBuffer = (char *)newBuffer;
|
|
stringBuffer[len] = 0;
|
|
stringBuffer[len+1] = 0;
|
|
|
|
return (LPWSTR)stringBuffer;
|
|
}
|
|
|
|
|