本实例利用钩子实现对键盘win e,win d,alt tab,ctrl alt del等快捷键的屏蔽，在锁屏工具上面用的较多，使用户不能切出应用程序，这个是我做考试系统防止用户切出设计的demo,在地址栏输入123然后点前往可以取消键盘屏蔽。
资源文件列表
LockForm/LockForm/app.config , 122
LockForm/LockForm/bin/Debug/LockForm.exe , 18944
LockForm/LockForm/bin/Debug/LockForm.exe.config , 122
LockForm/LockForm/bin/Debug/LockForm.pdb , 38400
LockForm/LockForm/bin/Debug/LockForm.vshost.exe , 21464
LockForm/LockForm/bin/Debug/LockForm.vshost.exe.config , 122
LockForm/LockForm/bin/Debug/LockForm.vshost.exe.manifest , 490
LockForm/LockForm/bin/Release/LockForm.exe , 18432
LockForm/LockForm/bin/Release/LockForm.exe.config , 122
LockForm/LockForm/bin/Release/LockForm.pdb , 32256
LockForm/LockForm/bin/Release/LockForm.rar , 8228
LockForm/LockForm/bin/Release/LockForm.vshost.exe , 21656
LockForm/LockForm/bin/Release/LockForm.vshost.exe.config , 122
LockForm/LockForm/bin/Release/LockForm.vshost.exe.manifest , 490
LockForm/LockForm/Form1.cs , 5319
LockForm/LockForm/Form1.Designer.cs , 6732
LockForm/LockForm/Form1.resx , 5817
LockForm/LockForm/LockForm.csproj , 3613
LockForm/LockForm/obj/Debug/DesignTimeResolveAssemblyReferences.cache , 1229
LockForm/LockForm/obj/Debug/DesignTimeResolveAssemblyReferencesInput.cache , 6038
LockForm/LockForm/obj/Debug/LockForm.csproj.FileListAbsolute.txt , 1350
LockForm/LockForm/obj/Debug/LockForm.csproj.GenerateResource.Cache , 847
LockForm/LockForm/obj/Debug/LockForm.csprojResolveAssemblyReference.cache , 1339
LockForm/LockForm/obj/Debug/LockForm.exe , 18944
LockForm/LockForm/obj/Debug/LockForm.Form1.resources , 180
LockForm/LockForm/obj/Debug/LockForm.pdb , 38400
LockForm/LockForm/obj/Debug/LockForm.Properties.Resources.resources , 180
LockForm/LockForm/obj/Release/DesignTimeResolveAssemblyReferences.cache , 1349
LockForm/LockForm/obj/Release/DesignTimeResolveAssemblyReferencesInput.cache , 6182
LockForm/LockForm/obj/Release/LockForm.csproj.FileListAbsolute.txt , 776
LockForm/LockForm/obj/Release/LockForm.csproj.GenerateResource.Cache , 847
LockForm/LockForm/obj/Release/LockForm.exe , 18432
LockForm/LockForm/obj/Release/LockForm.Form1.resources , 180
LockForm/LockForm/obj/Release/LockForm.pdb , 32256
LockForm/LockForm/obj/Release/LockForm.Properties.Resources.resources , 180
LockForm/LockForm/Program.cs , 1341
LockForm/LockForm/Properties/AssemblyInfo.cs , 1340
LockForm/LockForm/Properties/Resources.Designer.cs , 2868
LockForm/LockForm/Properties/Resources.resx , 5612
LockForm/LockForm/Properties/Settings.Designer.cs , 1108
LockForm/LockForm/Properties/Settings.settings , 200
LockForm/LockForm/Win32Api.cs , 19699
LockForm/LockForm.sln , 1440
LockForm/LockForm.v11.suo , 54784
LockForm/WindowsFormsApplication1/App.config , 189
LockForm/WindowsFormsApplication1/bin/Debug/WindowsFormsApplication1.exe , 17920
LockForm/WindowsFormsApplication1/bin/Debug/WindowsFormsApplication1.exe.config , 189
LockForm/WindowsFormsApplication1/bin/Debug/WindowsFormsApplication1.pdb , 34304
LockForm/WindowsFormsApplication1/bin/Debug/WindowsFormsApplication1.vshost.exe , 22984
LockForm/WindowsFormsApplication1/bin/Debug/WindowsFormsApplication1.vshost.exe.config , 189
LockForm/WindowsFormsApplication1/bin/Debug/WindowsFormsApplication1.vshost.exe.manifest , 490
LockForm/WindowsFormsApplication1/Form1.cs , 552
LockForm/WindowsFormsApplication1/Form1.Designer.cs , 2117
LockForm/WindowsFormsApplication1/Form1.resx , 5817
LockForm/WindowsFormsApplication1/Form2.cs , 4568
LockForm/WindowsFormsApplication1/Form2.Designer.cs , 2303
LockForm/WindowsFormsApplication1/Form2.resx , 5817
LockForm/WindowsFormsApplication1/obj/Debug/DesignTimeResolveAssemblyReferences.cache , 1463
LockForm/WindowsFormsApplication1/obj/Debug/DesignTimeResolveAssemblyReferencesInput.cache , 7013
LockForm/WindowsFormsApplication1/obj/Debug/TemporaryGeneratedFile_036C0B5B-1481-4323-8D20-8F5ADCB23D92.cs , 0
LockForm/WindowsFormsApplication1/obj/Debug/TemporaryGeneratedFile_5937a670-0e60-4077-877b-f7221da3dda1.cs , 0
LockForm/WindowsFormsApplication1/obj/Debug/TemporaryGeneratedFile_E7A71F73-0F8D-4B9B-B56E-8E70B10BC5D3.cs , 0
LockForm/WindowsFormsApplication1/obj/Debug/WindowsFormsApplication1.csproj.FileListAbsolute.txt , 947
LockForm/WindowsFormsApplication1/obj/Debug/WindowsFormsApplication1.csproj.GenerateResource.Cache , 1033
LockForm/WindowsFormsApplication1/obj/Debug/WindowsFormsApplication1.csprojResolveAssemblyReference.cache , 2231
LockForm/WindowsFormsApplication1/obj/Debug/WindowsFormsApplication1.exe , 17920
LockForm/WindowsFormsApplication1/obj/Debug/WindowsFormsApplication1.Form1.resources , 180
LockForm/WindowsFormsApplication1/obj/Debug/WindowsFormsApplication1.Form2.resources , 180
LockForm/WindowsFormsApplication1/obj/Debug/WindowsFormsApplication1.pdb , 34304
LockForm/WindowsFormsApplication1/obj/Debug/WindowsFormsApplication1.Properties.Resources.resources , 180
LockForm/WindowsFormsApplication1/Program.cs , 813
LockForm/WindowsFormsApplication1/Properties/AssemblyInfo.cs , 1368
LockForm/WindowsFormsApplication1/Properties/Resources.Designer.cs , 2900
LockForm/WindowsFormsApplication1/Properties/Resources.resx , 5612
LockForm/WindowsFormsApplication1/Properties/Settings.Designer.cs , 1111
LockForm/WindowsFormsApplication1/Properties/Settings.settings , 249
LockForm/WindowsFormsApplication1/Win32Api.cs , 19706
LockForm/WindowsFormsApplication1/WindowsFormsApplication1.csproj , 4172