Asynchronous programming in .NET by Gerardo Lijs Twitter @GerardoLijs C# MeetUp Barcelona April 2019 Content What is Asynchronous Programming CPU-bound vs IO-bound Obsolete patterns Tasks and interfaces @GerardoLijs Demo of a WPF desktop application • Targets .NET Core 3 Preview4 but works exactly the same with .NET 4.7.2 or earlier • The behaviour is the same in WinForms You will need need https://dotnet.microsoft.com/download/dotnet-core/3.0 and VS 2019 enabled for .NET Core https://visualstudiomagazine.com/articles/2019/03/08/vs-2019-core-tip.aspx Responsive user interfaces This

.NET Conf China 2022 .NET玩转音视频操作 FFmpeg 周杰 (来自长沙) Handshakes by DC Frontiers https://github.com/sdcb/Sdcb.FFmpeg 扫码下载代码示例和PPT .NET使用FFmpeg两类方法和相关库 命令行 • FFmpeg.NET • MediaToolkit • Xabe.Ffmpeg • 自己写 C API平台调用 • FFmpeg.AutoGen • EmguFFmpeg API的能力、保留跨平台的能力 删掉并重写了依赖ClangMacroParser，比原版支持更多的宏解析 动态库加载方式从手动LoadLibrary改为了自动的[DllImport]，这在.NET Core中可以自动从NuGet包中加载dll，这更符合.NET社区共识 除了底层封装，还提供了中层（类）封装和高层（帮助类）封装 简化了名字，如AVCodecID.AV_CODEC_ID_H264 -> AVCodecID

between sheets Hierarchical design examples Inspecting a schematic Find tool Search panel Net highlighting Net navigator Cross-probing from the PCB Electrical Rules Check Assigning Footprints Assigning Highlight a net by marking its wires and net labels with a different color. If the PCB Editor is also open then copper corresponding to the selected net will be highlighted as well. Net highlighting highlighting can be cleared by clicking with the highlight tool in an empty space, or by using the Clear Net Highlighting hotkey ( ). Display the symbol selector dialog to place a new symbol. Display the power

Display and selection controls Board layers The appearance panel Selection and the selection filter Net highlighting Cross-probing from the schematic Left toolbar display controls Creating a PCB Basic . . Measurement tool Design rule checking Board Statistics Find tool Search panel 3D ビューア Net inspector Generating outputs Fabrication outputs and plotting Drill files IPC-2581 files Component preset to be deleted from the list. Net and net class controls The Nets tab of the appearance panel shows a list of all nets and net classes in the board. Each net has a visibility control that controls

Display and selection controls Board layers The appearance panel Selection and the selection filter Net highlighting Cross-probing from the schematic Left toolbar display controls Creating a PCB Basic . Measurement tool Design rule checking Board Statistics Find tool Search panel 3D Viewer Net inspector Generating outputs Fabrication outputs and plotting Drill files IPC-2581 files Component preset to be deleted from the list. Net and net class controls The Nets tab of the appearance panel shows a list of all nets and net classes in the board. Each net has a visibility control that controls

Electrical connections between sheets Hierarchical design examples Inspecting a schematic Find tool Net highlighting Cross-probing from the PCB Electrical Rules Check Assigning Footprints Assigning Footprints Highlight a net by marking its wires and net labels with a different color. If the PCB Editor is also open then copper corresponding to the selected net will be highlighted as well. Net highlighting highlighting can be cleared by clicking with the highlight tool in an empty space, or by using the Clear Net Highlighting hotkey ( ). Display the symbol selector dialog to place a new symbol. Display the power

between sheets Hierarchical design examples Inspecting a schematic Find tool Search panel Net highlighting Net navigator Cross-probing from the PCB Electrical Rules Check Assigning Footprints Assigning Highlight a net by marking its wires and net labels with a different color. If the PCB Editor is also open then copper corresponding to the selected net will be highlighted as well. Net highlighting highlighting can be cleared by clicking with the highlight tool in an empty space, or by using the Clear Net Highlighting hotkey ( ). Display the symbol selector dialog to place a new symbol. Display the power

Display and selection controls Board layers The appearance panel Selection and the selection filter Net highlighting Cross-probing from the schematic Left toolbar display controls Creating a PCB Basic graphics Inspecting a board Measurement tool Design rule checking Find tool Search panel 3D Viewer Net inspector Generating outputs 2 2 3 3 4 5 5 5 7 8 8 8 10 10 10 10 11 11 21 21 preset to be deleted from the list. Net and net class controls The Nets tab of the appearance panel shows a list of all nets and net classes in the board. Each net has a visibility control that controls

Display and selection controls Board layers The appearance panel Selection and the selection filter Net highlighting Cross-probing from the schematic Left toolbar display controls Creating a PCB Basic Importing graphics Inspecting a board Measurement tool Design rule checking Find tool 3D Viewer Net inspector Generating outputs 2 2 3 3 4 5 5 5 7 8 8 8 10 10 10 10 12 12 20 20 preset to be deleted from the list. Net and net class controls The Nets tab of the appearance panel shows a list of all nets and net classes in the board. Each net has a visibility control that controls

Electrical connections between sheets Hierarchical design examples Inspecting a schematic Find tool Net highlighting Cross-probing from the PCB Design verification with Electrical Rules Check Assigning selection. long click long click or long click or Clarify selection from a pop-up menu. Highlight the net of the selected copper item. The following modifier keys apply when dragging to perform a box selection: Highlight a net by marking its wires and net labels with a different color. If the PCB Editor is also open then copper corresponding to the selected net will be highlighted as well. Net highlighting