Grx.query_pnm_file

@accepts(filename, Grx.PnmFormat, int, int, int)
@returns(bool)
def query_pnm_file(filename, format, width, height, maxval):
    # Python wrapper for grx_query_pnm_file()

Query format, width and height data from a PNM file

filename: Name of pnm file
format: the Grx.PnmFormat of the file
width: return pnm width
height: return pnm height
maxval: max color component value
Returns