主页 / 问题 / 1536577
Accepted
Andrey Ferzh
Asked:2023-08-18 22:24:56 +0000 UTC2023-08-18 22:24:56 +0000 UTC

使用位图时出现错误：“参数无效”

  • 772

有一个 CreateMergePhoto() 方法可以合并两张 1920x1080px 照片并为其添加时间戳。在循环235张照片的过程中，不断出现错误：

  System.ArgumentException
  HResult=0x80070057
  Сообщение = Недопустимый параметр.
  Источник = System.Drawing
  Трассировка стека:
   at System.Drawing.Bitmap..ctor(Int32 width, Int32 height, PixelFormat format)
   at System.Drawing.Bitmap..ctor(Int32 width, Int32 height)
   at TestMergeCSharp.Program.CreateMergePhoto() in D:\...\Program.cs:line 55
   at TestMergeCSharp.Program.Main(String[] args) in D:\...\Program.cs:line 34

第一行指的是：

System.Drawing.Bitmap bm = new System.Drawing.Bitmap(width, height);

第二，到方法调用：

CreateMergePhoto();

程序代码：

public static void Main(string[] args)
{
    Console.WriteLine("Нажмите клавижу для запуска...");
    Console.ReadKey();

    while(CntMerge < 300)
    {
        Console.WriteLine("Изображение: " + CntMerge);
        CreateMergePhoto();
    }

    Console.ReadKey();
}

方法代码：

private static void CreateMergePhoto()
{
    CheckImages();

    string img1 = PathToSave1;
    string img2 = PathToSave2;

    System.Drawing.Bitmap bm1 = new System.Drawing.Bitmap(img1, true);
    System.Drawing.Bitmap bm2 = new System.Drawing.Bitmap(img2, true);

    int width  = bm1.Width > bm2.Width ? bm1.Width : bm2.Width;
    int height = bm1.Height + bm2.Height;

    System.Drawing.Bitmap bm = new System.Drawing.Bitmap(width, height);
    bm.SetResolution(72, 72);

    string currTime = DateTime.Now.ToString("dd/MM/yyyy HH:mm:ss");

    Graphics g = Graphics.FromImage(bm);
    g.FillRectangle(Brushes.Gray, 0, 0, width, height);
    g.DrawImage(bm1, 0, 0, bm1.Width, bm1.Height);
    g.DrawImage(bm2, 0, bm1.Height, bm2.Width, bm2.Height);

    g.FillRectangle(Brushes.Black, 0, height / 2, width, 56);
    g.DrawString(currTime, new Font("Arial", 52f), Brushes.White, 2, height / 2);

    bm.Save(PathToSave, System.Drawing.Imaging.ImageFormat.Jpeg);

    bm.Dispose();
    bm1.Dispose();
    bm2.Dispose();
}
c#

1 个回答

  1. Best Answer

    感谢评论，解决了问题

    private static void CreateMergePhoto()
{
    CheckImages();

    string img1 = PathToSave1;
    string img2 = PathToSave2;

    using (System.Drawing.Bitmap bm1 = new System.Drawing.Bitmap(img1, true))
    {
        using (System.Drawing.Bitmap bm2 = new System.Drawing.Bitmap(img2, true))
        {
            int width = bm1.Width > bm2.Width ? bm1.Width : bm2.Width;
            int height = bm1.Height + bm2.Height;

            using (System.Drawing.Bitmap bm = new System.Drawing.Bitmap(width, height))
            {
                bm.SetResolution(72, 72);

                using (Graphics g = Graphics.FromImage(bm))
                {
                    string currTime = DateTime.Now.ToString("dd/MM/yyyy HH:mm:ss");

                    g.FillRectangle(Brushes.Gray, 0, 0, width, height);
                    g.DrawImage(bm1, 0, 0, bm1.Width, bm1.Height);
                    g.DrawImage(bm2, 0, bm1.Height, bm2.Width, bm2.Height);
                    g.FillRectangle(Brushes.Black, 0, height / 2, width, 56);
                    g.DrawString(currTime, fontArial, Brushes.White, 2, height / 2);

                    bm.Save(PathToSave, System.Drawing.Imaging.ImageFormat.Jpeg);
                }
            }
        }
    }
}
    • 1

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