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我想捕捉從C#中的AForge.Net攝像頭幀。不幸的是,我在_CurrentFrame.LockBits上得到了一個ArgumentException。我想我的事件寫入鎖定的位圖有問題!?有時我還會在UnlockBits中得到「GDI +中發生的一般錯誤」。事件訪問位圖,而其鎖定
public bool GetFrame(ref Draw.STexture Frame)
{
BitmapData bd = _CurrentFrame.LockBits(new Rectangle(0, 0, _CurrentFrame.Width, _CurrentFrame.Height), System.Drawing.Imaging.ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
byte[] data = new byte[4 * _CurrentFrame.Width * _CurrentFrame.Height];
Marshal.Copy(bd.Scan0, data, 0, data.Length);
//Do something with data here
_CurrentFrame.UnlockBits(bd);
_CurrentFrame.Dispose();
}
private void OnFrame(object sender, NewFrameEventArgs e)
{
if (_CurrentFrame != null)
_CurrentFrame.Dispose();
_CurrentFrame = (Bitmap)e.Frame.Clone();
}