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C # memory error in bitmap

I have a memory leak in my application in these lines. If I look in the task manager, every time this process starts, the RAM memory is increased by + 300 MB.

Bitmap bmp1 = new Bitmap(2480, 3508);
panel1.DrawToBitmap(bmp1, new Rectangle(0, 0, 2480, 3508));
pictureBox2.Image = bmp1;

Can someone help me with his leak? If I use:

bmp1.Dispose();

I get an exception in "Program.cs" on this line: Application.Run(new Form1()); And after that the application stops working ...

Screen application: enter image description here

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3 answers

Update: You do not have a memory leak as such, you just need to wait for the garbage collector to free resources.

If you want to make a garbage collector collect, but you can do this:

System.GC.Collect();
System.GC.WaitForPendingFinalizers();

? PictureBox , . , , :

Bitmap bmp1 = new Bitmap(2480, 3508);
panel1.DrawToBitmap(bmp1, new Rectangle(0, 0, 2480, 3508));
Image img = pictureBox1.Image;
pictureBox1.Image = bmp1;
if (img != null) img.Dispose(); // the first time it'll be null
+9

, , . bmp1, pictureBox2.Image. - :

Bitmap bmp1 = new Bitmap(2480, 3508);
panel1.DrawToBitmap(bmp1, new Rectangle(0, 0, 2480, 3508));
Bitmap bmp2 = (Bitmap)pictureBox2.Image;
pictureBox2.Image = bmp1;
bmp2.Dispose();

: #, ...

+3
    Bitmap copy_Screen()
    {
        try
        {
            var bmpScreenshot = new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height, PixelFormat.Format32bppArgb);
            var gfxScreenshot = Graphics.FromImage(bmpScreenshot);
            try
            {
                gfxScreenshot.CopyFromScreen(Screen.PrimaryScreen.Bounds.X, Screen.PrimaryScreen.Bounds.Y, 0, 0, Screen.PrimaryScreen.Bounds.Size, CopyPixelOperation.SourceCopy);
            }
            catch (Exception) { }
            return bmpScreenshot;
        }
        catch (Exception) { }
        return new Bitmap(10, 10, PixelFormat.Format32bppArgb);
    }

    private void button5_Click(object sender, EventArgs e)
    {
        //Start Stop timer
        if (timer1.Enabled == false) { timer1.Enabled = true; } else { timer1.Enabled = false; }
    }

    private void timer1_Tick(object sender, EventArgs e)
    {
        //memory leak solve
        System.GC.Collect();
        System.GC.WaitForPendingFinalizers();

        Bitmap BM = copy_Screen();
        if (pictureBox1.Image != null)
        {
            pictureBox1.Image.Dispose();
        }
        pictureBox1.Image = BM;

    }
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