Added minimal data sending example

Author: chkothe

examples/SendDataMinimal.cpp

@@ -0,0 +1,30 @@
+#include <chrono>
+#include <thread>
+#include <lsl_cpp.h>
+
+/**
+ * This is a minimal example of how a multi-channel data stream can be sent to LSL.
+ * Here, the stream is named SimpleStream, has content-type EEG, 8 channels, and 200 Hz.
+ * The transmitted samples contain random numbers.
+ */
+
+const int nchannels = 8;
+
+int main(int argc, char *argv[]) {
+	// make a new stream_info and open an outlet with it
+	lsl::stream_info info("SimpleStream", "EEG", nchannels, 200.0);
+	lsl::stream_outlet outlet(info);
+
+	// send data forever
+	float sample[nchannels];
+	while (true) {
+		// generate random data
+		for (int c = 0; c < nchannels; c++) sample[c] = (float)((rand() % 1500) / 500.0 - 1.5);
+		// send it
+		outlet.push_sample(sample);
+		// maintain our desired sampling rate (approximately; real software might do something else)
+		std::this_thread::sleep_for(std::chrono::milliseconds(5));
+	}
+
+	return 0;
+}