I am translating a bunch of Windows programs that critically need to work out
pixel dimensions of a string (with no newlines in it).
On Windows I first call getfont:
void getfont ( char * fontfacename , int sizeinpts , int weight , HFONT * hfret
)
{
LOGFONT lf = usewindowsapifunctions ( fontfacename , sizeinpts , weight );
*hfret = CreateFontIndirect ( &lf ) ;
}
and then for all strings to be measured call this:
int getpixeldims ( HFONT hf , char * stringtomeasure ,
int * widthret , int * heightret )
{
HDC hdc = GetDC ( 0 ); // device context of screen
HGIOBJ prev = SelectObject ( hdc , hf ); // add font to context
SIZE s;
int len = strlen ( stringtomeasure );
GetTextExtentPoint ( hdc , stringtomeasure , len , &s ); // measures
SelectObject ( hdc , prev );
ReleaseDC ( 0 , hdc );
*widthret = s.cx;
*heightret = s.cy;
}
I think I need Pango for this, but I have no idea how to use it. I have the
Pango reference manual and have read the tutorials by Tony Graham, but have not
found any examples to learn from.
Help would be most appreciated.
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