I want to flip a picture box.

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Hello guys,

First of all iam a beginner c sharp coding.

I have a picturebox and a timer(enabled, interval = 25).

I have inserted a gif image of a bird in the picturebox.

And in the Timer event i have written,

C#

bool positionBird = true;

private void timer1_Tick(object sender, EventArgs e)
        {
            if (PictureBox1.Location.X == Screen.PrimaryScreen.Bounds.Width)
            {
                positionBird = false;
            }
            else if (PictureBox1.Location.X == 0)
            {
                positionBird = true;
            }

            if(positionBird)
            {
                PictureBox1.Left += 1;
            }
            else
            {
                PictureBox1.Left += -1;
            }
        }

But what i want to achieve is, when the picture box touches the right boundary and condition become false, i want to flip the image of bird in the picturebox. Right now the bird is doing michael jackson's Moonwalk (lol..!!).

I tried to flip the flip the bird(mirror) using the below code.

else
            {
                PictureBox pict = new PictureBox();
                pict = PictureBox1;
                pict.Image.RotateFlip(RotateFlipType.RotateNoneFlipX);
                PictureBox1.Left += -1;
            }

But it looks weird, it shows the flip image and normal image both. Can someone help me on this. As i already told iam a beginner some simple code with explanation will be very much helpful. also can someone tell me what iam doing wrong.

Posted 13-Feb-14 7:00am

KRIZTE

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Comments

Sergey Alexandrovich Kryukov 13-Feb-14 13:28pm

Why are you mixing the PictureBox with the bitmap (or other image)? Better forget about PictireBox; it is totally irrelevant. And don't use a timer, use a separate thread...
—SA

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OriginalGriff · Answer 1 · 2014-02-13T08:14:00

Ok, a couple of things.
First off, don't use the primary screen width - you can't show your PictureBox outside your Form, so use the form width instead.
Secondly, don't look for an exact match - check for "greater than or equal to" instead. Your way works fine when you increment by one, but if you decide to vary the speed, it could easily fail.

Then, to turn it round you are very, very close: all you need to do, is change your code very slightly, and move it around:

C#

private void timer1_Tick(object sender, EventArgs e)
    {
    if (pictureBox1.Location.X >= Width)
        {
        pictureBox1.Image.RotateFlip(RotateFlipType.RotateNoneFlipX);
        positionBird = false;
        }
    else if (pictureBox1.Location.X + pictureBox1.Width <= 0)
        {
        pictureBox1.Image.RotateFlip(RotateFlipType.RotateNoneFlipX);
        positionBird = true;
        }

    if (positionBird)
        {
        pictureBox1.Left += 10;
        }
    else
        {
        pictureBox1.Left += -10;
        }
    }

(BTW: I moved the left hand side check, so the picture swaps over when it isn't visible)