added a number input and a loadbang for setting the dsp on 1, compiled the patch

test-pico-io/lib/Heavy/HvControlVar.h

@@ -0,0 +1,43 @@
+/**
+ * Copyright (c) 2014-2018 Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _HEAVY_CONTROL_VAR_H_
+#define _HEAVY_CONTROL_VAR_H_
+
+#include "HvHeavyInternal.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct ControlVar {
+  Element e; // type is only ever HV_MSG_FLOAT or HV_MSG_HASH
+} ControlVar;
+
+hv_size_t cVar_init_f(ControlVar *o, float k);
+
+hv_size_t cVar_init_s(ControlVar *o, const char *s);
+
+void cVar_free(ControlVar *o);
+
+void cVar_onMessage(HeavyContextInterface *_c, ControlVar *o, int letIn, const HvMessage *m,
+    void (*sendMessage)(HeavyContextInterface *, int, const HvMessage *));
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // _HEAVY_CONTROL_VAR_H_