bool wxMetafileDataObject::SetData(size_t WXUNUSED(len), const void *buf)
{
const METAFILEPICT *mfpict = (const METAFILEPICT *)buf;
wxMetafile mf;
mf.SetWindowsMappingMode(mfpict->mm);
LONG w = mfpict->xExt,
h = mfpict->yExt;
if ( mfpict->mm == MM_ANISOTROPIC )
{
// in this case xExt and yExt contain suggested size in HIMETRIC units
// (0.01 mm) - transform this to something more reasonable (pixels)
HIMETRICToPixel(&w, &h);
}
mf.SetWidth(w);
mf.SetHeight(h);
mf.SetHMETAFILE((WXHANDLE)mfpict->hMF);
wxCHECK_MSG( mfpict->hMF, false, wxT("pasting invalid metafile") );
SetMetafile(mf);
return true;
}
wxSize wxEnhMetaFile::GetSize() const
{
wxSize size = wxDefaultSize;
if ( Ok() )
{
ENHMETAHEADER hdr;
if ( !::GetEnhMetaFileHeader(GetEMF(), sizeof(hdr), &hdr) )
{
wxLogLastError(_T("GetEnhMetaFileHeader"));
}
else
{
// the width and height are in HIMETRIC (0.01mm) units, transform
// them to pixels
LONG w = hdr.rclFrame.right,
h = hdr.rclFrame.bottom;
HIMETRICToPixel(&w, &h);
size.x = w;
size.y = h;
}
}
return size;
}
void HIMETRICToPixel(LONG *x, LONG *y)
{
HIMETRICToPixel(x, y, ScreenHDC());
}