/*
* @implemented
*
*/
HGDIOBJ
WINAPI
GetCurrentObject(
_In_ HDC hdc,
_In_ UINT uObjectType)
{
PDC_ATTR pdcattr = NULL;
/* Check if this is a user mode object */
if ((uObjectType == OBJ_PEN) ||
(uObjectType == OBJ_EXTPEN) ||
(uObjectType == OBJ_BRUSH) ||
(uObjectType == OBJ_COLORSPACE))
{
/* Get the DC attribute */
pdcattr = GdiGetDcAttr(hdc);
if (pdcattr == NULL)
{
return NULL;
}
}
/* Check what object was requested */
switch (uObjectType)
{
case OBJ_EXTPEN:
case OBJ_PEN:
return pdcattr->hpen;
case OBJ_BRUSH:
return pdcattr->hbrush;
case OBJ_COLORSPACE:
return pdcattr->hColorSpace;
case OBJ_PAL:
uObjectType = GDI_OBJECT_TYPE_PALETTE;
break;
case OBJ_FONT:
uObjectType = GDI_OBJECT_TYPE_FONT;
break;
case OBJ_BITMAP:
uObjectType = GDI_OBJECT_TYPE_BITMAP;
break;
/* All others are invalid */
default:
SetLastError(ERROR_INVALID_PARAMETER);
return NULL;
}
/* Pass the request to win32k */
return NtGdiGetDCObject(hdc, uObjectType);
}
HBITMAP
WINAPI
CreateCompatibleBitmap(
HDC hDC,
INT Width,
INT Height)
{
PDC_ATTR pDc_Attr;
if (!GdiGetHandleUserData(hDC, GDI_OBJECT_TYPE_DC, (PVOID) & pDc_Attr))
return NULL;
if (!Width || !Height)
return GetStockObject(DEFAULT_BITMAP);
if (!(pDc_Attr->ulDirty_ & DC_DIBSECTION))
{
return NtGdiCreateCompatibleBitmap(hDC, Width, Height);
}
else
{
HBITMAP hBmp = NULL;
struct
{
BITMAP bitmap;
BITMAPINFOHEADER bmih;
RGBQUAD rgbquad[256];
} buffer;
DIBSECTION* pDIBs = (DIBSECTION*) &buffer;
BITMAPINFO* pbmi = (BITMAPINFO*) &buffer.bmih;
hBmp = NtGdiGetDCObject(hDC, GDI_OBJECT_TYPE_BITMAP);
if (GetObjectA(hBmp, sizeof(DIBSECTION), pDIBs) != sizeof(DIBSECTION))
return NULL;
if (pDIBs->dsBm.bmBitsPixel <= 8)
GetDIBColorTable(hDC, 0, 256, buffer.rgbquad);
pDIBs->dsBmih.biWidth = Width;
pDIBs->dsBmih.biHeight = Height;
return CreateDIBSection(hDC, pbmi, DIB_RGB_COLORS, NULL, NULL, 0);
}
return NULL;
}
