2:
How can I enlarge the control's edit area

public void init()
{
	;

	super();

	excalc1.EditHeight(32);
	excalc1.ButtonHeight(32);
	excalc1.ButtonWidth(32);
}
1:
How can I change the button's appearance

public void init()
{
	str var_s,var_s1;
	;

	super();

	var_s = "gBHJJGHA5MIgAEIe4AAAFhyFiC9fa9bDbbABjEZjUbjkdj0fkEhkUjkklk0nlEplUrlktl0vmExmUzmk1m03nE5nU7nkihgAEL5AgBhj/AAsn8JpRABCZAD/BIcJCwUD";
	var_s = var_s + "BQYIAIILDIWChYaHAACEh8JCxMTERIVGYyXiIeAfQCPEBDRQMbJRUBCRoaHIaHiJaSiYiSGBjZScBKTMpLRAdNreNioWSgZydBZ7CT8BJUdBAUQ7RoODrJKjkJaaKCjJ";
	var_s = var_s + "SdJQVFJKAAlVq2KjqCIoYinHy9HTkVT1FTYUJiPKeHqaOzjLSTNqDXztDSXNhcAJcdKKZo7GCAb6/QADf6lJS4GDCQAAHcBA";
	excalc1.PictureUp(COMVariant::createFromStr(var_s));
	var_s1 = "gBHJJGHA5MIgAEIe4AAAFhyFiDYiQBikVi0XjEZjUbjkdj0fkEhkUjkklk0nlEplUrlktl0vmExmUzmk1m03nEhhgAEL5AgBhj/AAsncJoxABCCAD/BIcJCwUDBQYIAI";
	var_s1 = var_s1 + "gLhICBAQCEBgjHSEDBxcJERYAGRqbjIKKjYiKCwfDxUBByUjISQoKaqUi4eQfZKRFoFLw0fBycrMQQ1KreNgYablv4dQZyfjZWaoaKjEBzSxUZQzczOQJMS4SQraeapZ";
	var_s1 = var_s1 + "iqKavHTNdQSFZLTZcUYmBrreorJSrAoDVBdZa2dpaUhwMYGAgAHcBA==";
	excalc1.PictureDown(COMVariant::createFromStr(var_s1));
	excalc1.ButtonHeight(24);
	excalc1.ButtonWidth(24);
}