Native -- DataFlavor clipboard problem

Question

I'm trying to access vim specific clipboard data (to get visual block info). This is on windows XP (unix is next) I've registered the formats with addFlavorForUnencodedNative, see java code below. But when I look at all the clipboard flavors, when clipboard contains vim stuff, no vim flavors show up, see output.
Any ideas of what/where the problem might be?
Thanks,
-ernie
In vim, from its os_win32.c, there is
    clip_star.format = RegisterClipboardFormat("VimClipboard2");
    clip_star.format_raw = RegisterClipboardFormat("VimRawBytes");and when a vim copy to clipboard command is issued, in vim's os_mswin.c. Note that cbd->format is clip_start.format, returned from RegisterClipboardFormat above.
SetClipboardData(cbd->format, hMemVim);
SetClipboardData(CF_UNICODETEXT, hMemW) != NULL)
SetClipboardData(CF_TEXT, hMem);When I run the java program I get the following output. First are the mimetype of the 3 native flavors I added; in cb.getAvailableDataFlavors() none of them appear in the 27 flavors available.
VimClipboard application/vimclipboard; class=java.nio.ByteBuffer
VimClipboard2 application/vimclipboard2; class=java.nio.ByteBuffer
VimRawBytes application/vimrawbytes; class=java.nio.ByteBuffer
27 flavors
application/x-java-text-encoding; class="[B"
application/x-java-serialized-object; class=java.lang.String
...Here's the java code that is not finding the vim clipboard native data
/* Main.java; access vim's clipboard */
package vimclipapp;
import java.awt.Toolkit;
import java.awt.datatransfer.Clipboard;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.FlavorMap;
import java.awt.datatransfer.SystemFlavorMap;
public class Main {
    static DataFlavor VimClipboard = addFlavor("VimClipboard");
    static DataFlavor VimClipboard2 = addFlavor("VimClipboard2");
    static DataFlavor VimRawBytes = addFlavor("VimRawBytes");
    static DataFlavor addFlavor(String cbName) {
        DataFlavor df = null;
        FlavorMap fm = SystemFlavorMap.getDefaultFlavorMap();
        SystemFlavorMap sfm = (SystemFlavorMap) fm;
        try {
            df = new DataFlavor(  "application/"
                                + cbName
                                + "; class=java.nio.ByteBuffer");
        } catch (ClassNotFoundException ex) { ex.printStackTrace(); }
        System.err.println(cbName + " " + df.getMimeType());
        sfm.addFlavorForUnencodedNative(cbName, df);
        sfm.addUnencodedNativeForFlavor(df, cbName);
        return df;
    public static void main(String[] args) {
        Clipboard cb = Toolkit.getDefaultToolkit().getSystemClipboard();
        if(cb.isDataFlavorAvailable(VimClipboard2))
            System.err.println("VimClipboard available");
        DataFlavor dfa[] = cb.getAvailableDataFlavors();
        System.err.println("\n" + dfa.length + " flavors\n");
        for (DataFlavor df : dfa) {
            System.err.println(df.getMimeType());
}

Answer 1

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