Update ESP32-VirtualMatrixPanel-I2S-DMA.h

tidbyt · May 16, 2021 · f73552b · f73552b
1 parent 6e0a763
commit f73552b
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/ESP32-VirtualMatrixPanel-I2S-DMA.h b/ESP32-VirtualMatrixPanel-I2S-DMA.h
@@ -105,7 +105,7 @@ class VirtualMatrixPanel
 
 inline VirtualCoords VirtualMatrixPanel::getCoords(int16_t x, int16_t y) {
 
-  coords.x = coords.y = 0;
+  coords.x = coords.y = -1; // By defalt use an invalid co-ordinates that will be rejected by updateMatrixDMABuffer
 
   if (x < 0 || x > width() || y < 0 || y > height() ) {
     //Serial.printf("VirtualMatrixPanel::getCoords(): Invalid virtual display coordinate. x,y: %d, %d\r\n", x, y);
@@ -212,4 +212,4 @@ inline void VirtualMatrixPanel::drawIcon (int *ico, int16_t x, int16_t y, int16_
   }
 }
 
-#endif
+#endif