protected override void OnShown(EventArgs e)
{
base.OnShown(e);
string path = Path.Combine(Application.StartupPath, Guid.NewGuid().ToString() + ".mp4");
using (VideoFileWriter videoFileWriter = new VideoFileWriter()
{
Width = this.ClientSize.Width, Height = this.ClientSize.Height, FPS = 25, VideoCodec = FFmpegProvider.VideoCodecItems.First()
})
{
videoFileWriter.Open(path);
int width = this.ClientSize.Width / 10;
int height = this.ClientSize.Height / 10;
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
using (Bitmap bitmap = new Bitmap(videoFileWriter.Width, videoFileWriter.Height))
using (Graphics graphics = Graphics.FromImage(bitmap))
{
graphics.DrawEllipse(Pens.Yellow, new RectangleF(x, y, 10, 10));
videoFileWriter.WriteVideo(bitmap);
this.Text = $"写入{y * width + x}/{width * height}";
}
}
}
}
System.Diagnostics.Process.Start("Explorer.exe", path);
}