// save active virtual buttons (in case of just configuring them)
for (x = 0; x < MAX_GRID_XSIZE; x++)
for (y = 0; y < MAX_GRID_YSIZE; y++)
// save active virtual buttons (in case of just configuring them)
for (x = 0; x < MAX_GRID_XSIZE; x++)
for (y = 0; y < MAX_GRID_YSIZE; y++)