Guys I don't understand how the clipping rectangle function works.

I'm drawing a rectangle using this:

    int x,y,w,h;
    al_get_clipping_rectangle(&x, &y, &w, &h);
    std::cout<<"x: "<<x<<" y: "<<y<<" w: "<<w<<" h: "<<h<<std::endl;
    awDrawRectangle(x,
                    y,
                    w,
                    h,
                    255, 0, 0, 255, false);

and setting the clipping rectangle like this:

        al_set_clipping_rectangle(mouse.posX,
                                  mouse.posY,
                                  mouse.posX+50,
                                  mouse.posY+50);

And I'm getting this:

I don't understand why that's happening. Shouldn't I see only that tiny rectangle filled with the back-buffer bitmap?

You're passing the bottom right x and y instead of the width and height.

al_set_clipping_rectangle(x,y,w,h);

Oh it's true man! hehehe I'm burned out, too much programming for now, I was unable to see that, so the function already adds the width and height relative to the position.

Edgar... Eeeedddgaaar Come on, say yes...

Sorry AMC, my heart belongs to someone else.