C#自定义TrackBar

C#自定义TrackBar,支接定义背景按钮,支接定义背景按钮不支持拖动

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2019-01-07 16:35  ClassLibrary1\
     文件        2923  2019-01-07 16:36  ClassLibrary1\ClassLibrary1.csproj
     文件         228  2019-01-07 16:36  ClassLibrary1\ClassLibrary1.csproj.user
     目录           0  2019-01-07 16:33  ClassLibrary1\Properties\
     文件        1325  2019-01-07 16:33  ClassLibrary1\Properties\AssemblyInfo.cs
     文件       55587  2019-01-07 16:12  ClassLibrary1\WTrackBar.cs
     目录           0  2019-01-07 16:33  ClassLibrary1\bin\
     目录           0  2019-01-07 16:40  ClassLibrary1\bin\Debug\
     目录           0  2019-01-07 16:40  ClassLibrary1\bin\Release\
     文件       11098  2019-01-07 16:00  ClassLibrary1\ctlButtons.cs
     文件        6512  2018-12-26 16:33  ClassLibrary1\frmMyobjectEditor.Designer.cs
     文件        2523  2019-01-07 16:26  ClassLibrary1\frmMyobjectEditor.cs
     文件        5814  2018-12-26 16:33  ClassLibrary1\frmMyobjectEditor.resx
     目录           0  2019-01-07 16:33  ClassLibrary1\obj\
     目录           0  2019-01-07 16:36  ClassLibrary1\obj\Debug\
     文件          42  2019-01-07 16:36  ClassLibrary1\obj\Debug\ClassLibrary1.csproj.CoreCompileInputs.cache
     文件         948  2019-01-07 16:36  ClassLibrary1\obj\Debug\ClassLibrary1.csproj.FileListAbsolute.txt
     文件         951  2019-01-07 16:36  ClassLibrary1\obj\Debug\ClassLibrary1.csproj.GenerateResource.cache
     文件       38912  2019-01-07 16:36  ClassLibrary1\obj\Debug\ClassLibrary1.dll
     文件       99840  2019-01-07 16:36  ClassLibrary1\obj\Debug\ClassLibrary1.pdb
     文件        6869  2019-01-07 16:36  ClassLibrary1\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache
     目录           0  2019-01-07 16:40  ClassLibrary1\obj\Debug\TempPE\
     文件         180  2019-01-07 16:36  ClassLibrary1\obj\Debug\libbase.Controls.frmMyobjectEditor.resources
     目录           0  2019-01-07 16:24  WindowsFormsApp1\
     目录           0  2019-01-07 16:24  WindowsFormsApp1\.vs\
     目录           0  2019-01-07 16:24  WindowsFormsApp1\.vs\WindowsFormsApp1\
     目录           0  2019-01-07 16:24  WindowsFormsApp1\.vs\WindowsFormsApp1\v15\
     文件       70144  2019-01-07 16:40  WindowsFormsApp1\.vs\WindowsFormsApp1\v15\.suo
     目录           0  2019-01-07 16:24  WindowsFormsApp1\.vs\WindowsFormsApp1\v15\Server\
     目录           0  2019-01-07 16:24  WindowsFormsApp1\.vs\WindowsFormsApp1\v15\Server\sqlite3\
     文件           0  2019-01-07 16:24  WindowsFormsApp1\.vs\WindowsFormsApp1\v15\Server\sqlite3\db.lock
............此处省略36个文件信息