static void Main(string[] args)
{
Console.WriteLine("Console dotNET Application 0.1.0");
Console.WriteLine("--------------------------------");
Console.WriteLine("");
Console.WriteLine("Using Yoctopuce lib " + YAPI.GetAPIVersion());
string errsmg = "";
if (YAPI.RegisterHub("usb", ref errsmg) != YAPI.SUCCESS)
{
Console.WriteLine("Unable to register the USB port :" + errsmg);
return;
}
YSensor sensor = YSensor.FirstSensor();
if (sensor == null)
{
Console.WriteLine("No Yoctopuce sensor find on USB.");
return;
}
YDisplay display = YDisplay.FirstDisplay();
if (display == null)
{
Console.WriteLine("No Yoctopuce display find on USB.");
return;
}
// display clean up
display.resetAll();
YDisplayLayer l1 = display.get_displayLayer(1);
l1.hide(); // L1 is hidden, l2 stay visible
int w = display.get_displayWidth();
int h = display.get_displayHeight();
while (sensor.isOnline() && display.isOnline())
{
string value = sensor.get_currentValue() + " " + sensor.get_unit();
string name = sensor.get_friendlyName();
// display a text in the middle of the screen
l1.clear();
l1.selectFont("Large.yfm");
l1.drawText(w / 2, h / 2, YDisplayLayer.ALIGN.CENTER, value);
l1.selectFont("Small.yfm");
l1.drawText(w - 1, h - 1, YDisplayLayer.ALIGN.BOTTOM_RIGHT, name);
display.swapLayerContent(0, 1);
Console.WriteLine(name + " ->" + value);
YAPI.Sleep(500, ref errsmg);
}
YAPI.FreeAPI();
}
public void DisplayError(string msg)
{
_bgLayer.reset();
_bgLayer.selectGrayPen(255);
_bgLayer.drawBar(0, 0, _w, _h);
_bgLayer.selectColorPen(0);
_bgLayer.drawText(_w / 2, _h / 3, YDisplayLayer.ALIGN.CENTER, "ERROR !");
_bgLayer.drawText(_w / 2, _h * 2 / 3, YDisplayLayer.ALIGN.CENTER, msg);
}
private async Task UpdateDisplay(string value)
{
double dval = Convert.ToDouble(value);
string txt = String.Format("{0:F2} {1}", dval, unit);
CurVal.Text = txt;
if (display != null)
{
long start = DateTime.Now.Ticks;
try {
await l0.clear();
await l0.drawText(w - 1, h / 2, YDisplayLayer.ALIGN.CENTER_RIGHT, txt);
await display.swapLayerContent(0, 1);
} catch (YAPI_Exception ex) {
await FatalError(ex.Message);
}
long stop = DateTime.Now.Ticks;
long delta = (stop - start) / 1000;
if (delta > 50)
{
Debug.WriteLine("screen update took {0}ms", delta);
}
}
}
/**
* <summary>
* Draws a text string at the specified position.
* <para>
* The point of the text that is aligned
* to the specified pixel position is called the anchor point, and can be chosen among
* several options. Text is rendered from left to right, without implicit wrapping.
* </para>
* </summary>
* <param name="x">
* the distance from left of layer to the text anchor point, in pixels
* </param>
* <param name="y">
* the distance from top of layer to the text anchor point, in pixels
* </param>
* <param name="anchor">
* the text anchor point, chosen among the <c>YDisplayLayer.ALIGN</c> enumeration:
* <c>YDisplayLayer.ALIGN_TOP_LEFT</c>, <c>YDisplayLayer.ALIGN_CENTER_LEFT</c>,
* <c>YDisplayLayer.ALIGN_BASELINE_LEFT</c>, <c>YDisplayLayer.ALIGN_BOTTOM_LEFT</c>,
* <c>YDisplayLayer.ALIGN_TOP_CENTER</c>, <c>YDisplayLayer.ALIGN_CENTER</c>,
* <c>YDisplayLayer.ALIGN_BASELINE_CENTER</c>, <c>YDisplayLayer.ALIGN_BOTTOM_CENTER</c>,
* <c>YDisplayLayer.ALIGN_TOP_DECIMAL</c>, <c>YDisplayLayer.ALIGN_CENTER_DECIMAL</c>,
* <c>YDisplayLayer.ALIGN_BASELINE_DECIMAL</c>, <c>YDisplayLayer.ALIGN_BOTTOM_DECIMAL</c>,
* <c>YDisplayLayer.ALIGN_TOP_RIGHT</c>, <c>YDisplayLayer.ALIGN_CENTER_RIGHT</c>,
* <c>YDisplayLayer.ALIGN_BASELINE_RIGHT</c>, <c>YDisplayLayer.ALIGN_BOTTOM_RIGHT</c>.
* </param>
* <param name="text">
* the text string to draw
* </param>
* <returns>
* <c>0</c> if the call succeeds.
* </returns>
* <para>
* On failure, throws an exception or returns a negative error code.
* </para>
*/
public virtual int drawText(int x, int y, int anchor, string text)
{
return(_objptr.drawText(x, y, _Int2ALIGN(anchor), text));
}
