WMF1.java

import java.io.*;
import java.util.Arrays;


public class WMF1 {

public static int get32(byte[] b) {
	int v;
	v  = (b[3]&0xff)<<24;
	v += (b[2]&0xff)<<16;
	v += (b[1]&0xff)<<8;
	v += (b[0]&0xff);
	return v;
}

public static int get16(byte[] b) {
	int v;
	v = (b[1]&0xff)<<8;
	v += (b[0]&0xff);
	return v;
}

public static void readFile(String filename) {

	try(BufferedInputStream in = new BufferedInputStream(new FileInputStream(filename))) {
		byte[] b = new byte[64];
		byte[] c;
		int eof, count, n, type;
		int v1,v2;

		in.read(b,0,4);
		type = get32(b);
		if (type==0x9AC6CDD7) {
			// 11 words
			System.out.format("placeable header %4x\n",type);
			in.read(b,0,2);
			System.out.format("handle %2x\n",get16(b));
			in.read(b,0,4);
			v1 = get32(b);
			in.read(b,0,4);
			v2 = get32(b);
			System.out.format("bounding box %4x %4x\n",v1,v2);
			c = Arrays.copyOfRange(b,0,2);
			v1 = get16(c);
			c = Arrays.copyOfRange(b,2,4);
			v2 = get16(c);
			System.out.format("test subarray %2x %d\n",v2,v2);
			in.read(b,0,2);
			System.out.format("Inch: %d\n",get16(b));
			in.read(b,0,4);
			System.out.format("Reserved: %x\n",get32(b));
			in.read(b,0,2);
			System.out.format("Checksum: %x\n\n",get16(b));
			in.read(b,0,4);
		}

		// 9 words
		c = Arrays.copyOfRange(b,0,2);
		System.out.format("metafile type %2x\n",get16(c));
		c = Arrays.copyOfRange(b,2,4);
		System.out.format("header size: %d\n",get16(c));
		in.read(b,0,2);
		System.out.format("Version: %x\n",get16(b));
		in.read(b,0,4);
		System.out.format("size: %d\n",get32(b));
		in.read(b,0,2);
		System.out.format("number of objects %d\n",get16(b));
		in.read(b,0,4);
		System.out.format("max record size (16-bit words) %d\n",get32(b));
		in.read(b,0,2);
		System.out.format("unused (should be zero) %x\n",get16(b));


		count = 0;

		System.out.println("\nobj size type");
		for (int obj=1; obj<1024; obj++) {

			eof = in.read(b,0,4);
			if (eof<0) break;
			n = get32(b);
			count = count + n;
			in.read(b,0,2);
			type = get16(b);
			if (n>3) in.read(b,0,2*(n-3));
			System.out.format("%3d %4d %4x\n",obj,n,type);
		}
		System.out.format("\n %d words including header\n",count+9);


		// META_SAVEDC = 0x001E
		// 12d - META_SELECTOBJECT
		// 324 - META_POLYGON+
		// 325 - META_POLYLINE
		// META_INTERSECTCLIPRECT = 0x0416
 		// META_DELETEOBJECT = 0x01f0
		//  META_CREATEPENINDIRECT = 0x02FA
		//  META_CREATEBRUSHINDIRECT = 0x02FC, 

		in.close();

	}
	catch(Exception e) {
		System.err.println(e);
	}
}


public static void main(String [] args) {
	String filename = "example1.wmf";
	if (args.length>0) filename = args[0];

	readFile(filename);
}

}