surface_getpixel_ext(surface_id, x, y);
| Argument | Description |
|---|---|
| surface_id | The ID of the surface to use. |
| x | The x coordinate of the pixel to check |
| y | The y coordinate of the pixel to check |
Returns: Real
With this function you can get the full abgr 32bit value
of any pixel of a (previously created) surface.
NOTE: This function is slow and so should only be used
when absolutely necessary.
col = surface_getpixel_ext(mouse_x, mouse_y);
alpha = (col >> 24) & 255;
blue = (col >> 16) & 255;
green = (col >> 8) & 255;
red = col & 255;
The above code will get the 32bit colour value at the position of the mouse and then split it into its component values, storing them in variables.