/***********************************************************************
* GetObjectW (GDI32.@)
*/
INT WINAPI GetObjectW( HANDLE handle, INT count, LPVOID buffer )
{
GDIOBJHDR * ptr;
INT result = 0;
TRACE("%08x %d %p\n", handle, count, buffer );
if (!count) return 0;
if (!(ptr = GDI_GetObjPtr( handle, MAGIC_DONTCARE ))) return 0;
switch(GDIMAGIC(ptr->wMagic))
{
case PEN_MAGIC:
result = PEN_GetObject( (PENOBJ *)ptr, count, buffer );
break;
case BRUSH_MAGIC:
result = BRUSH_GetObject( (BRUSHOBJ *)ptr, count, buffer );
break;
case BITMAP_MAGIC:
result = BITMAP_GetObject( (BITMAPOBJ *)ptr, count, buffer );
break;
case FONT_MAGIC:
result = FONT_GetObjectW( (FONTOBJ *)ptr, count, buffer );
break;
case PALETTE_MAGIC:
result = PALETTE_GetObject( (PALETTEOBJ *)ptr, count, buffer );
break;
default:
FIXME("Magic %04x not implemented\n", GDIMAGIC(ptr->wMagic) );
break;
}
GDI_ReleaseObj( handle );
return result;
}
/***********************************************************************
* DeleteObject (GDI32.@)
*/
BOOL WINAPI DeleteObject( HGDIOBJ obj )
{
/* Check if object is valid */
GDIOBJHDR * header;
if (HIWORD(obj)) return FALSE;
if (!(header = GDI_GetObjPtr( obj, MAGIC_DONTCARE ))) return FALSE;
if (!(header->wMagic & OBJECT_NOSYSTEM)
&& (header->wMagic >= FIRST_MAGIC) && (header->wMagic <= LAST_MAGIC))
{
TRACE("Preserving system object %04x\n", obj);
GDI_ReleaseObj( obj );
return TRUE;
}
if (header->dwCount)
{
TRACE("delayed for %04x because object in use, count %ld\n", obj, header->dwCount );
header->dwCount |= 0x80000000; /* mark for delete */
GDI_ReleaseObj( obj );
return TRUE;
}
TRACE("%04x\n", obj );
/* Delete object */
switch(GDIMAGIC(header->wMagic))
{
case PEN_MAGIC:
return GDI_FreeObject( obj, header );
case BRUSH_MAGIC:
return BRUSH_DeleteObject( obj, (BRUSHOBJ*)header );
case FONT_MAGIC:
return FONT_DeleteObject( obj, (FONTOBJ*)header );
case PALETTE_MAGIC:
return PALETTE_DeleteObject(obj,(PALETTEOBJ*)header);
case BITMAP_MAGIC:
return BITMAP_DeleteObject( obj, (BITMAPOBJ*)header);
case REGION_MAGIC:
return REGION_DeleteObject( obj, (RGNOBJ*)header );
case DC_MAGIC:
GDI_ReleaseObj( obj );
return DeleteDC(obj);
case 0 :
WARN("Already deleted\n");
break;
default:
WARN("Unknown magic number (%04x)\n",GDIMAGIC(header->wMagic));
}
GDI_ReleaseObj( obj );
return FALSE;
}
/***********************************************************************
* GetObjectType (GDI32.@)
*/
DWORD WINAPI GetObjectType( HANDLE handle )
{
GDIOBJHDR * ptr;
INT result = 0;
TRACE("%08x\n", handle );
if (!(ptr = GDI_GetObjPtr( handle, MAGIC_DONTCARE ))) return 0;
switch(GDIMAGIC(ptr->wMagic))
{
case PEN_MAGIC:
result = OBJ_PEN;
break;
case BRUSH_MAGIC:
result = OBJ_BRUSH;
break;
case BITMAP_MAGIC:
result = OBJ_BITMAP;
break;
case FONT_MAGIC:
result = OBJ_FONT;
break;
case PALETTE_MAGIC:
result = OBJ_PAL;
break;
case REGION_MAGIC:
result = OBJ_REGION;
break;
case DC_MAGIC:
result = OBJ_DC;
break;
case META_DC_MAGIC:
result = OBJ_METADC;
break;
case METAFILE_MAGIC:
result = OBJ_METAFILE;
break;
case METAFILE_DC_MAGIC:
result = OBJ_METADC;
break;
case ENHMETAFILE_MAGIC:
result = OBJ_ENHMETAFILE;
break;
case ENHMETAFILE_DC_MAGIC:
result = OBJ_ENHMETADC;
break;
default:
FIXME("Magic %04x not implemented\n", GDIMAGIC(ptr->wMagic) );
break;
}
GDI_ReleaseObj( handle );
return result;
}
/***********************************************************************
* UnrealizeObject (GDI32.@)
*/
BOOL WINAPI UnrealizeObject( HGDIOBJ obj )
{
BOOL result = TRUE;
/* Check if object is valid */
GDIOBJHDR * header = GDI_GetObjPtr( obj, MAGIC_DONTCARE );
if (!header) return FALSE;
TRACE("%04x\n", obj );
/* Unrealize object */
switch(GDIMAGIC(header->wMagic))
{
case PALETTE_MAGIC:
result = PALETTE_UnrealizeObject( obj, (PALETTEOBJ *)header );
break;
case BRUSH_MAGIC:
/* Windows resets the brush origin. We don't need to. */
break;
}
GDI_ReleaseObj( obj );
return result;
}
/***********************************************************************
* GetObject (GDI.82)
*/
INT16 WINAPI GetObject16( HANDLE16 handle, INT16 count, LPVOID buffer )
{
GDIOBJHDR * ptr;
INT16 result = 0;
TRACE("%04x %d %p\n", handle, count, buffer );
if (!count) return 0;
if (!(ptr = GDI_GetObjPtr( handle, MAGIC_DONTCARE ))) return 0;
switch(GDIMAGIC(ptr->wMagic))
{
case PEN_MAGIC:
result = PEN_GetObject16( (PENOBJ *)ptr, count, buffer );
break;
case BRUSH_MAGIC:
result = BRUSH_GetObject16( (BRUSHOBJ *)ptr, count, buffer );
break;
case BITMAP_MAGIC:
result = BITMAP_GetObject16( (BITMAPOBJ *)ptr, count, buffer );
break;
case FONT_MAGIC:
result = FONT_GetObject16( (FONTOBJ *)ptr, count, buffer );
break;
case PALETTE_MAGIC:
result = PALETTE_GetObject( (PALETTEOBJ *)ptr, count, buffer );
break;
}
GDI_ReleaseObj( handle );
return result;
}
/***********************************************************************
* EMFDRV_SelectObject
*/
HGDIOBJ EMFDRV_SelectObject( DC *dc, HGDIOBJ handle )
{
GDIOBJHDR * ptr = GDI_GetObjPtr( handle, MAGIC_DONTCARE );
HGDIOBJ ret = 0;
if (!ptr) return 0;
TRACE("hdc=%04x %04x\n", dc->hSelf, handle );
switch(GDIMAGIC(ptr->wMagic))
{
case PEN_MAGIC:
ret = EMFDRV_PEN_SelectObject( dc, handle );
break;
case BRUSH_MAGIC:
ret = EMFDRV_BRUSH_SelectObject( dc, handle );
break;
case FONT_MAGIC:
ret = EMFDRV_FONT_SelectObject( dc, handle );
break;
case BITMAP_MAGIC:
ret = EMFDRV_BITMAP_SelectObject( dc, handle );
break;
}
GDI_ReleaseObj( handle );
return ret;
}
/***********************************************************************
* IsGDIObject (GDI.462)
*
* returns type of object if valid (W95 system programming secrets p. 264-5)
*/
BOOL16 WINAPI IsGDIObject16( HGDIOBJ16 handle )
{
UINT16 magic = 0;
GDIOBJHDR *object = GDI_GetObjPtr( handle, MAGIC_DONTCARE );
if (object)
{
magic = GDIMAGIC(object->wMagic) - PEN_MAGIC + 1;
GDI_ReleaseObj( handle );
}
return magic;
}
/***********************************************************************
* GDI_GetObjPtr
*
* Return a pointer to the GDI object associated to the handle.
* Return NULL if the object has the wrong magic number.
* The object must be released with GDI_ReleaseObj.
*/
void *GDI_GetObjPtr( HGDIOBJ handle, WORD magic )
{
GDIOBJHDR *ptr = NULL;
_EnterSysLevel( &GDI_level );
if ((UINT_PTR)handle & 2) /* GDI heap handle */
{
ptr = (GDIOBJHDR *)LOCAL_Lock( GDI_HeapSel, handle );
if (ptr)
{
if (((magic != MAGIC_DONTCARE) && (GDIMAGIC(ptr->wMagic) != magic)) ||
(GDIMAGIC(ptr->wMagic) < FIRST_MAGIC) ||
(GDIMAGIC(ptr->wMagic) > LAST_MAGIC))
{
LOCAL_Unlock( GDI_HeapSel, handle );
ptr = NULL;
}
}
}
else /* large heap handle */
{
int i = ((UINT_PTR)handle >> 2) - FIRST_LARGE_HANDLE;
if (i >= 0 && i < MAX_LARGE_HANDLES)
{
ptr = large_handles[i];
if (ptr && (magic != MAGIC_DONTCARE) && (GDIMAGIC(ptr->wMagic) != magic)) ptr = NULL;
}
}
if (!ptr)
{
_LeaveSysLevel( &GDI_level );
SetLastError( ERROR_INVALID_HANDLE );
WARN( "Invalid handle %x\n", handle );
}
else TRACE_SEC( handle, "enter" );
return ptr;
}
/***********************************************************************
* PEN_GetObject
*/
static INT PEN_GetObject( HGDIOBJ handle, void *obj, INT count, LPVOID buffer )
{
PENOBJ *pen = obj;
switch (GDIMAGIC(pen->header.wMagic))
{
case PEN_MAGIC:
{
LOGPEN *lp;
if (!buffer) return sizeof(LOGPEN);
if (count < sizeof(LOGPEN)) return 0;
if ((pen->logpen.elpPenStyle & PS_STYLE_MASK) == PS_NULL &&
count == sizeof(EXTLOGPEN))
{
EXTLOGPEN *elp = buffer;
*elp = pen->logpen;
elp->elpWidth = 0;
return sizeof(EXTLOGPEN);
}
lp = buffer;
lp->lopnStyle = pen->logpen.elpPenStyle;
lp->lopnColor = pen->logpen.elpColor;
lp->lopnWidth.x = pen->logpen.elpWidth;
lp->lopnWidth.y = 0;
return sizeof(LOGPEN);
}
case EXT_PEN_MAGIC:
{
INT size = sizeof(EXTLOGPEN) + pen->logpen.elpNumEntries * sizeof(DWORD) - sizeof(pen->logpen.elpStyleEntry);
if (!buffer) return size;
if (count < size) return 0;
memcpy(buffer, &pen->logpen, size);
return size;
}
default:
break;
}
assert(0);
return 0;
}
/***********************************************************************
* create_default_clip_region
*
* Create a default clipping region when none already exists.
*/
static inline void create_default_clip_region( DC * dc )
{
UINT width, height;
if (GDIMAGIC( dc->header.wMagic ) == MEMORY_DC_MAGIC)
{
BITMAP bitmap;
GetObjectW( dc->hBitmap, sizeof(bitmap), &bitmap );
width = bitmap.bmWidth;
height = bitmap.bmHeight;
}
else
{
width = GetDeviceCaps( dc->hSelf, DESKTOPHORZRES );
height = GetDeviceCaps( dc->hSelf, DESKTOPVERTRES );
}
dc->hClipRgn = CreateRectRgn( 0, 0, width, height );
}
