The character string.
The texture channel where the character image is found (1 = blue, 2 = green, 4 = red, 8 = alpha, 15 = all channels).
The height of the character image in the texture.
The character id.
The character index.
The number of texture pages included in the font.
The width of the character image in the texture.
The left position of the character image in the texture.
How much the current position should be advanced after drawing the character.
How much the current position should be offset when copying the image from the texture to the screen.
The top position of the character image in the texture.
How much the current position should be offset when copying the image from the texture to the screen.
This interface defines BMFontChar.
BMFontChar