GCBASIC documentation
Graphical LCD

Syntax:

    GLCDPrint(PrintLocX, PrintLocY, PrintData_Byte [, Optional Colour] )    ',or
    GLCDPrint(PrintLocX, PrintLocY, PrintData_Word [, Optional Colour] )    ',or
    GLCDPrint(PrintLocX, PrintLocY, PrintData_Long [, Optional Colour] )    ',or

    GLCDPrint(PrintLocX, PrintLocY, PrintData_String [, Optional Colour] )

PrintLocX is the X corrdinate location for the data
PrintLocY is the Y coordinate location for the data
PrintData_[type] is a variable or constant to be displayed
Optional Colour sets the foreground colour used to draw the text; only meaningful on colour GLCD controllers (for example the ST7735, ST7789, or SSD1331) and ignored on monochrome displays such as the KS0108 or SSD1306.

Explanation:

Prints data values (byte, word, long or string) at a specified location on the GLCD screen, using the current GCBASIC font set. GLCDPrint automatically formats numeric variables as decimal text, so a Byte, Word, or Long variable can be passed directly without first converting it to a string.

To display an integer use:

    GLCDPrint(PrintLocX, PrintLocY, strinteger(integer_value) )

Example:

    #chip mega328p, 16
    #include <glcd.h>
    #define GLCD_TYPE GLCD_TYPE_SSD1306_128_64
    #define GLCD_I2C_Address 0x78

    Dim MyByte as Byte
    Dim MyWord as Word
    Dim MyLong as Long
    Dim MyString as String

    MyByte = 200
    MyWord = 45000
    MyLong = 123456789
    MyString = "GCBASIC"

    GLCDCLS
    GLCDPrint(0, 0, MyString)               ' <<< printing a String directly
    GLCDPrint(0, 16, MyByte)                'prints "200"
    GLCDPrint(0, 32, MyWord)                'prints "45000"
    GLCDPrint(0, 48, MyLong)                'prints "123456789"

    Do
    Loop

Key line: GLCDPrint(0, 0, MyString) — writes the string variable starting at pixel column 0, row 0; the three calls that follow show that Byte, Word, and Long variables are printed the same way, with GLCDPrint converting each numeric value to decimal text automatically.

See Also: