unsafe static void Main(string[] args) { // Show Details Severity Code Description Project File Line //Error CS1708 Fixed size buffers can only be accessed through locals or fields TestExportDefInvoke Program.cs 21 // Additional information: Unable to find an entry point named 'sizeof_Foo3' in DLL 'TestExportDef.dll'. //var a = Marshal.GetFunctionPointerForDelegate( // new Action( // delegate // { // // y = 0x00000016 // } // ) //); //fixed ushort samples[3]; var samples = stackalloc ushort[100]; samples[0] = 100; var aa = new TestExportDefSharedProject.FooSignal8 { value8 = 7, samplesLength = 100, samples = samples }; // Show Details Severity Code Description Project File Line //Error CS1686 Local 'aa' or its members cannot have their address taken and be used inside an anonymous method or lambda expression TestExportDefInvoke Program.cs 58 Foo(&aa); var a = new TestExportDefSharedProject.FooSignal { }; a.value8 = 8; a.signal1 = delegate { // can CLR keep scope? yes. but byref is out of sync. var __a = a; // old memory. if we use byref Debugger.Break(); }; DoCallbackFoo(ref a); // only now we get an update? framesync //DoCallback(a); DoCallback( delegate { // y = 0x00000016 } ); var s = sizeof_Foo3(); // https://limbioliong.wordpress.com/2011/06/19/delegates-as-callbacks-part-2/ var yy = GetCallback(); yy(); // http://www.dotnetperls.com/fixed-buffer var f = new TestExportDefSharedProject.Foo { value8 = 66, //EmailID = EmailID }; //Error CS0821 Implicitly - typed local variables cannot be fixed TestExportDefInvoke Program.cs 32 //Error CS0213 You cannot use the fixed statement to take the address of an already fixed expression TestExportDefInvoke Program.cs 34 f.EmailID[0] = (byte)'1'; f.EmailID[1] = (byte)'A'; f.EmailID[2] = (byte)'C'; //fixed (var e = f.EmailID) //{ // e = "hello"; //} var f3 = new TestExportDefSharedProject.Foo3 { z = f }; f3.x.value8 = 3; f3.InvokeCLRFromCRT(); }
unsafe static void Main(string[] args) { // Show Details Severity Code Description Project File Line //Error CS1708 Fixed size buffers can only be accessed through locals or fields TestExportDefInvoke Program.cs 21 // Additional information: Unable to find an entry point named 'sizeof_Foo3' in DLL 'TestExportDef.dll'. //var a = Marshal.GetFunctionPointerForDelegate( // new Action( // delegate // { // // y = 0x00000016 // } // ) //); //fixed ushort samples[3]; var samples = stackalloc ushort[100]; samples[0] = 100; var aa = new TestExportDefSharedProject.FooSignal8 { value8 = 7, samplesLength = 100, samples = samples }; // Show Details Severity Code Description Project File Line //Error CS1686 Local 'aa' or its members cannot have their address taken and be used inside an anonymous method or lambda expression TestExportDefInvoke Program.cs 58 Foo(&aa); var a = new TestExportDefSharedProject.FooSignal { }; a.value8 = 8; a.signal1 = delegate { // can CLR keep scope? yes. but byref is out of sync. var __a = a; // old memory. if we use byref Debugger.Break(); }; DoCallbackFoo(ref a); // only now we get an update? framesync //DoCallback(a); DoCallback( delegate { // y = 0x00000016 } ); var s = sizeof_Foo3(); // https://limbioliong.wordpress.com/2011/06/19/delegates-as-callbacks-part-2/ var yy = GetCallback(); yy(); // http://www.dotnetperls.com/fixed-buffer var f = new TestExportDefSharedProject.Foo { value8 = 66, //EmailID = EmailID }; //Error CS0821 Implicitly - typed local variables cannot be fixed TestExportDefInvoke Program.cs 32 //Error CS0213 You cannot use the fixed statement to take the address of an already fixed expression TestExportDefInvoke Program.cs 34 f.EmailID[0] = (byte)'1'; f.EmailID[1] = (byte)'A'; f.EmailID[2] = (byte)'C'; //fixed (var e = f.EmailID) //{ // e = "hello"; //} var f3 = new TestExportDefSharedProject.Foo3 { z = f }; f3.x.value8 = 3; f3.InvokeCLRFromCRT(); }
extern static void InvokeCLRFromCRT(this TestExportDefSharedProject.Foo3 f);