...int width)
    {
        _width = width;
    }

    public const int area()
    {
        if (_area == -1) {
            //_area = _width*_width;      // we...

...writefln("%s", value);    <=>     debug {
                                             writefln("%s", value);
                                        }

Fits nicely! :)
(Hope, you use fixed-width fonts)

...problem is that bool has a defined width. It shouldn't have, because bool is...

...encoding. Additionally, there's a minor margin/width difference of the menu between the start...

...dereference cairo_text_extents_t.width the compiler says that width is not a recognized...

...work. You need to be counting rendered width in pixels - an operation which should be...

...like this:

for(int i=0; i<(width*height*3); ++i)
    framebuffer[i] = 0;

Is...

...size yourself.

ubyte[] framebuffer = new ubyte[3*width*height];


Then pass framebuffer.ptr to the...

...This is the function:

void glDrawPixels(GLsizei width, GLsizei height, GLenum format, GLenum type, const...

...bitmap image format:

<image name="screenshot.bmpx" width="800px" height="600px">
[snip]
<pixel id="D7A9...