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digitalmars.D.dwt - why cannot i change the Text control's font ?

setfont.handleEvent(codeText, DWT.Selection, delegate(Event e){
	Text txt = cast(Text)e.cData;
	Font oldFont = txt.getFont();
	FontDialog fontDialog = new FontDialog (shell);
	if(oldFont !is null)
		fontDialog.setFontList(oldFont.getFontData());
	FontData fontData = fontDialog.open ();
	if (fontData !is null) {
		Font newFont = new Font(display, fontData) ;
		txt.font = newFont;
		txt.setFont( newFont );
		if(oldFont !is null) oldFont.dispose();
	}
});

the code runs smoothly however the text control's font doesnot change !

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Nov 09 2007