Use this function to set a area of graphical text output. You always should call this function before all graphical text outputs. The application needs the text area to refresh the lcd correctly. The syntax is a follows:

%LCD.Gfx_SetTextArea(x1,y1,x2,y2)

x1,y1 = upper left point of text area rectangle
x2,y2 = lower right point of text area rectangle

Example:

%LCD.Gfx_SetTextArea(10,10,100,20)

This function sets a text area rectangle. The application refreshes text output from x-position 10px to 100px and y-position 10px to 20px.