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北京哪个网站最好,企业网站管理系统联系我们怎么添加,万网网站模板下载,wordpress主题 ie打不开主页在以往几篇文章里面#xff0c;大家都可以看到各种录制的GIF效果图#xff0c;把gif放在文章开始#xff0c;不仅可以减少很多冗余的解释白话文#xff0c;更可以让读者一览无余看到文章大概要义。以往都是使用“LicEcap”来录制的#xff0c;那么我们是否能自己实现一个这…在以往几篇文章里面大家都可以看到各种录制的GIF效果图把gif放在文章开始不仅可以减少很多冗余的解释白话文更可以让读者一览无余看到文章大概要义。以往都是使用“LicEcap”来录制的那么我们是否能自己实现一个这样的工具呢一方面国庆假期结束练练代码手感另一方面可以根据自己需求扩展需要的功能。01介绍软件UI及操作操作比较简单以下是运行界面选择录制区域绘制需要录制的ROI区域点击开始录制录制结束后停止录制即可.弹出保存路径保存gifimage.png02效果图整个运行作业图test.gif实际录屏的ROI区域效果GIFeee.gif03源码介绍imageprivate void InitializeComponents(){this.Text GIF录制工具;this.Size new Size(400, 200);this.StartPosition FormStartPosition.CenterScreen;// 选择区域按钮Button btnSelectArea new Button();btnSelectArea.Text 选择录制区域;btnSelectArea.Size new Size(120, 30);btnSelectArea.Location new Point(20, 20);btnSelectArea.Click BtnSelectArea_Click;this.Controls.Add(btnSelectArea);// 开始录制按钮Button btnStart new Button();btnStart.Text 开始录制;btnStart.Size new Size(120, 30);btnStart.Location new Point(20, 60);btnStart.Click BtnStart_Click;this.Controls.Add(btnStart);// 停止录制按钮Button btnStop new Button();btnStop.Text 停止录制;btnStop.Size new Size(120, 30);btnStop.Location new Point(20, 100);btnStop.Click BtnStop_Click;this.Controls.Add(btnStop);// 帧率选择Label lblFrameRate new Label();lblFrameRate.Text 帧率:;lblFrameRate.Location new Point(160, 65);lblFrameRate.Size new Size(50, 20);this.Controls.Add(lblFrameRate);NumericUpDown numFrameRate new NumericUpDown();numFrameRate.Value frameRate;numFrameRate.Minimum 1;numFrameRate.Maximum 30;numFrameRate.Location new Point(210, 65);numFrameRate.Size new Size(60, 20);numFrameRate.ValueChanged (s, e) { frameRate (int)numFrameRate.Value; };this.Controls.Add(numFrameRate);// 状态标签Label lblStatus new Label();lblStatus.Text 状态: 就绪;lblStatus.Location new Point(160, 25);lblStatus.Size new Size(200, 20);lblStatus.Name lblStatus;this.Controls.Add(lblStatus);// 录制计时器captureTimer new System.Windows.Forms.Timer();captureTimer.Tick CaptureTimer_Tick;}选择ROI录屏区域private void StartAreaSelection(){this.Hide();Thread.Sleep(500); // 等待窗体隐藏isSelectingArea true;Cursor Cursors.Cross;// 创建全屏透明窗体用于区域选择Form selectionForm new Form();selectionForm.WindowState FormWindowState.Maximized;selectionForm.FormBorderStyle FormBorderStyle.None;selectionForm.BackColor Color.Black;selectionForm.Opacity 0.3;selectionForm.TopMost true;selectionForm.Cursor Cursors.Cross;Rectangle selectedArea Rectangle.Empty;bool isDragging false;Point dragStart Point.Empty;selectionForm.MouseDown (s, e) {if (e.Button MouseButtons.Left){isDragging true;dragStart e.Location;}};selectionForm.MouseMove (s, e) {if (isDragging){int x Math.Min(dragStart.X, e.X);int y Math.Min(dragStart.Y, e.Y);int width Math.Abs(e.X - dragStart.X);int height Math.Abs(e.Y - dragStart.Y);selectedArea new Rectangle(x, y, width, height);selectionForm.Invalidate();}};selectionForm.MouseUp (s, e) {if (e.Button MouseButtons.Left isDragging){isDragging false;if (selectedArea.Width 10 selectedArea.Height 10){recordingArea selectedArea;UpdateStatus($已选择区域: {recordingArea});}selectionForm.Close();}};selectionForm.Paint (s, e) {if (isDragging !selectedArea.IsEmpty){using (Pen pen new Pen(Color.Red, 2)){e.Graphics.DrawRectangle(pen, selectedArea);}string sizeText ${selectedArea.Width} x {selectedArea.Height};using (Font font new Font(Arial, 12))using (Brush brush new SolidBrush(Color.Red)){e.Graphics.DrawString(sizeText, font, brush, selectedArea.X, selectedArea.Y - 20);}}};selectionForm.KeyDown (s, e) {if (e.KeyCode Keys.Escape){selectionForm.Close();}};selectionForm.FormClosed (s, e) {isSelectingArea false;Cursor Cursors.Default;this.Show();this.BringToFront();};selectionForm.ShowDialog();}录制结束保存GIFprivate void SaveGif(){if (frames.Count 0){MessageBox.Show(没有可保存的帧, 提示, MessageBoxButtons.OK, MessageBoxIcon.Information);return;}using (SaveFileDialog saveDialog new SaveFileDialog()){saveDialog.Filter GIF 文件|*.gif;saveDialog.Title 保存GIF文件;saveDialog.DefaultExt gif;if (saveDialog.ShowDialog() DialogResult.OK){try{// 使用GifBitmapEncoder替代方案SaveFramesAsGif(frames, saveDialog.FileName, frameRate);MessageBox.Show($GIF保存成功\n文件: {saveDialog.FileName}\n帧数: {frames.Count}, 成功,MessageBoxButtons.OK, MessageBoxIcon.Information);}catch (Exception ex){MessageBox.Show($保存GIF时出错: {ex.Message}, 错误, MessageBoxButtons.OK, MessageBoxIcon.Error);}}}// 清理资源foreach (var frame in frames){frame.Dispose();}frames.Clear();}private void SaveFramesAsGif(ListBitmap frames, string filePath, int frameRate){using (var collection new MagickImageCollection()){foreach (var frame in frames){using (var memoryStream new MemoryStream()){frame.Save(memoryStream, ImageFormat.Bmp);memoryStream.Position 0;var image new MagickImage(memoryStream);image.AnimationDelay Convert.ToUInt32( 100 / frameRate); // 设置帧延迟collection.Add(image);}}// 优化GIFcollection.Optimize();collection.Write(filePath);}}主要用到第三方nuget包AnimatedGifMagick.NET-Q16-AnyCPU结束语感谢各位耐心查阅 如果您有更好的想法欢迎一起交流有不懂的也可以微信公众号联系博主作者公众号会经常发一些实用的小工具和demo源码需要的可以去看看另外如果觉得本篇博文对您或者身边朋友有帮助的麻烦点