/// <summary>
/// 开始
/// </summary>
/// <param name="frameEventHandler"></param>
public override void Start(NewFrameEventHandler frameEventHandler = null)
{
if (hwnd == IntPtr.Zero)
{
MessageBox.Show($"没有找到程序【{programName}】!");
return;
}
//首先获取一张，并设置成此大小
Bitmap programBmp = WindowApi.GetWindowCapture(hwnd);
base.ScreenWidth = programBmp.Width % 2 == 0 ? programBmp.Width : programBmp.Width - 1;
base.ScreenHight = programBmp.Height % 2 == 0 ? programBmp.Height : programBmp.Height - 1;
//开始录制
base.Start(null);
this.frameEventHandler = frameEventHandler;
}
/// <summary>
/// 捕捉每帧
/// </summary>
/// <param name="sender"></param>
/// <param name="eventArgs"></param>
protected override void VideoStreamer_NewFrame(object sender, NewFrameEventArgs eventArgs)
{
Bitmap programBmp = WindowApi.GetWindowCapture(hwnd);
Bitmap newBitmap = new Bitmap(this.ScreenWidth, this.ScreenHight);
//修改图片大小
using (Graphics graphics = Graphics.FromImage(newBitmap))
{
graphics.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
graphics.DrawImage(programBmp, 0, 0, base.ScreenWidth, base.ScreenHight);
}
var newFrameEvent = new NewFrameEventArgs(newBitmap);
base.VideoStreamer_NewFrame(sender, newFrameEvent);
try
{
frameEventHandler.Invoke(sender, newFrameEvent);
}
catch { }
}