first re-commit.

pigbutton.h

@@ -0,0 +1,54 @@
+/*****************************************************************************
+
+    source::worx libPiGPio
+    Copyright © 2022 c.holzheuer
+    chris@sourceworx.org
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    Uses:
+
+    pigpiod_if2 by joan2937, pigpio @ abyz.me.uk
+    https://abyz.me.uk/rpi/pigpio
+
+    sigslot  by 2017 Pierre-Antoine Lacaze
+    https://github.com/palacaze/sigslot
+
+***************************************************************************/
+
+
+#ifndef PIGBUTTON_H
+#define PIGBUTTON_H
+
+#include <pignodein.h>
+
+class LIBPIGPIO_EXPORT pigButton : public pigNodeIn
+{
+
+
+public:
+
+    pigButton();
+    pigButton( pigpio::bcm_t bcmNo );
+    virtual ~pigButton();
+
+    void init( pigpio::bcm_t bcmNo );
+
+    void change_state( bool newState ) override;
+
+protected:
+
+    virtual void trigger( pigpio::bcm_t bcm, uint32_t level ) override;
+
+
+
+};
+
+
+#endif // PIGBUTTON_H
+
+
+