Managed C++/CLI

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tool bar rose1962-Mar-08 20:56 rose196 2-Mar-08 20:56  Hi I am creating a toolstrip,Menustrip. can you tell me how to move a toolstrip from one place to another place. Re: tool bar Giorgi Dalakishvili2-Mar-08 21:09 Giorgi Dalakishvili 2-Mar-08 21:09  If I'm not mistaken this is what you need: ToolStripContainer Control[^] #region signature my articles #endregion how to create a Project Location dialog box rose1962-Mar-08 18:48 rose196 2-Mar-08 18:48  Hi, In Visual Studio, ProjectLocation dialog box is there know . How to create a dialogbox like that ? I want to create like this with the same operation. Can you tell me Thank you, Re: how to create a Project Location dialog box Mark Salsbery3-Mar-08 6:06 Mark Salsbery 3-Mar-08 6:06  What dialog are you talking about? Mark Mark Salsbery Microsoft MVP - Visual C++ Cannot use null and how to declare return type of a function as array? [modified] Member 45422722-Mar-08 18:26 Member 4542272 2-Mar-08 18:26  1) When using null it show error: undeclared identifier. what can i do to declare a null? If no way to use null then what is the replacement for it? 2) How to declare array return type for a function? In c# public byte[] type(); In c++/cli public array<byte> type(); not working. </byte> modified on Monday, March 3, 2008 12:34 AM Re: Cannot use null and how to declare return type of a function as array? led mike3-Mar-08 4:58 led mike 3-Mar-08 4:58  see if this helps[^] led mike Re: Cannot use null and how to declare return type of a function as array? Mark Salsbery3-Mar-08 6:04 Mark Salsbery 3-Mar-08 6:04  1) nullptr 2) array<Byte> ^method(); Mark Salsbery Microsoft MVP - Visual C++ EXE vs LIB -- 30 times slower? s196675m29-Feb-08 15:14 s196675m 29-Feb-08 15:14  My GUI application called a function in a library (image processing library) but it takes 20 to 30 times more time to execute this function when comparing to the time required when calling standalone .exe file. Both library and GUI compiled with managed c++ (pure:clr) and in the GUI there is a reference for the library as a additional dependencies in the linker input. When I make .exe (using pure:MSIL) file instead of .lib and run from command line passing the required argument is just take one to one and half minute to execute it . When I make the library file (bypassing the main function) from the same source code and calling the function from GUI takes arround 20 to 30 minutes. The source code for the library orginially written in C/C++ but I compiled it using manged c++ pure MSIL to match with the GUI. Compilation and linking everything is fine and I can not find and explain the cause of 20 to 30 times slow running when library is used. Is there anybody here in this forum help me or explain the possible cause of slow running. Any idea, link, suggestion will be highly appreciated. Thank you. Re: EXE vs LIB -- 30 times slower? uusheikh4-Mar-08 21:18 uusheikh 4-Mar-08 21:18  Hi, are you sure you both the lib and exe are in /clr:pure? If the exe is /clr:pure and the lib is /clr, then it is possible that the whole program runs 20-30x slower. This is because of thunking between managed and native world, data type marshalling etc. It gets even worse when many functions are called in managed world (which is usual in image processing). What you can do is compile your c++ functions in a DLL as native, and then just call 1 function from managed C++. I'm also doing image processing, and am interested to know more. Re: EXE vs LIB -- 30 times slower? s196675m5-Mar-08 8:00 s196675m 5-Mar-08 8:00  thanks for your suggession. I already created a DLL in naive code and importing a function to my GUI and used P/Invoke to call this function from GUI. It is much better but not yet perfect. It is 2 to 3 times slower now when comparing to the win32 console application. Somebody suggested me to call the function in a seperate thread which I will try. There might be some messsage pump working between GUI(Winform application) and native dll when I called the function. If you have any other suggessions then let me know. thank you again. Serializable And Deserialize javad_200529-Feb-08 4:17 javad_2005 29-Feb-08 4:17  when i Serialize Object in My Application int the FileStream I can't Deserialize FileStream in Other Application . so how To Serialize Object in fileStream into My Application And Deserialize FileStream in other Application Re: Serializable And Deserialize Mark Salsbery29-Feb-08 6:39 Mark Salsbery 29-Feb-08 6:39  What's not working?  Code? Mark Mark Salsbery Microsoft MVP - Visual C++ Re: Serializable And Deserialize Paul Conrad29-Feb-08 8:03 Paul Conrad 29-Feb-08 8:03  Snippet of the code not working could help us see where the problem may be... "Real programmers just throw a bunch of 1s and 0s at the computer to see what sticks" - Pete O'Hanlon Re: Serializable And Deserialize javad_20051-Mar-08 3:41 javad_2005 1-Mar-08 3:41  In other Application When Deserialize Object errror : i can't find assembly Application name Re: Serializable And Deserialize javad_20051-Mar-08 20:05 javad_2005 1-Mar-08 20:05  in Serialize Application :Project Name = AppSerialize ////////////////////////// Image ^image=Image::FromFile(file) FileStream ^file=gcnew FileStream(...) BinaryFormatter ^formatter=gcnew Binaryformatter; formatter->Serialize(file,image); //////////////////////////////////////////// In deserialize Application : Project Name =AppDeserialize Image ^image.... FileStream ^file=gcnew FileStream(FileSerialize) BinaryFormatter ^formatter=gcnew Binaryformatter; image=(Image ^)formatter->Dererialize(file); ///////// Error In Deserialize error : can not find assembly AppSerialize and ....... Re: Serializable And Deserialize Mark Salsbery4-Mar-08 12:13 Mark Salsbery 4-Mar-08 12:13  Did you ever get this working? Mark Mark Salsbery Microsoft MVP - Visual C++ Re: Serializable And Deserialize javad_20054-Mar-08 20:23 javad_2005 4-Mar-08 20:23  I can Serialize And Deserialize In One Application . i workinn Server And client Application so i need Send Struct to Client when i serialize Struct and Send , in client Application can't Deserialize Struct Re: Serializable And Deserialize Mark Salsbery4-Mar-08 20:31 Mark Salsbery 4-Mar-08 20:31  The problem is, the same assembly needs to be used to deserialize as the one that serialized it. There's ways around this though, if you don't want to keep a separate assembly to maintain on both ends. Please post the EXACT exception message (entirely) and I'll show you an example...If you'd like. You can get the message from the exception by wrapping your deserialize code in a try block and adding something like ...   catch ( SerializationException^ e )     {         Console::WriteLine( "Failed to deserialize. Reason: {0}", e->Message );         //throw;     } Mark Mark Salsbery Microsoft MVP - Visual C++ Re: Serializable And Deserialize javad_20054-Mar-08 23:01 javad_2005 4-Mar-08 23:01  in SerializeApp : [SerializableAttribute] ref struct MyStruct { int n; int j; }; MyStruct ^my=gcnew MyStruct; my->j=1; my->n=1; FileStream ^file=gcnew FileStream("c:\\Test.dat",FileMode::Create); BinaryFormatter ^formatter=gcnew BinaryFormatter; formatter->Serialize(file,my); /////////////////////////////////////////// In DeserializeApp : FileStream ^file=gcnew FileStream("c:\\Test.dat",FileMode::Open); BinaryFormatter ^formatter=gcnew BinaryFormatter; try { MyStruct ^my=(MyStruct ^)formatter->Deserialize(file); } catch (SerializationException^ e) { textBox1->Text=e->Message; } Error: Unable to find assembly 'SerializeApp, Version=1.0.2987.23837, Culture=neutral, PublicKeyToken=null'. Re: Serializable And Deserialize Giorgi Dalakishvili4-Mar-08 21:04 Giorgi Dalakishvili 4-Mar-08 21:04  In order to serialize in one assembly and deserialize in another either you need to maintain same assembly in both applications or you use a technique described here: Advanced Binary Serialization: Deserializing an Object Into a Different Type Than the One It was Serialized Into[^] The example is in c# but you should be able to use the same principle in C++ .Net too. Hope it helps. #region signature my articles #endregion Re: Serializable And Deserialize Mark Salsbery4-Mar-08 21:07 Mark Salsbery 4-Mar-08 21:07  Good article Giorgi! Mark Mark Salsbery Microsoft MVP - Visual C++ Re: Serializable And Deserialize Giorgi Dalakishvili4-Mar-08 21:14 Giorgi Dalakishvili 4-Mar-08 21:14  Thanks Mark #region signature my articles #endregion Re: Serializable And Deserialize javad_20055-Mar-08 2:19 javad_2005 5-Mar-08 2:19  Thnak's and Very Good Re: Serializable And Deserialize Giorgi Dalakishvili5-Mar-08 7:08 Giorgi Dalakishvili 5-Mar-08 7:08  You are welcome #region signature my articles #endregion Re: Serializable And Deserialize javad_20055-Mar-08 21:57 javad_2005 5-Mar-08 21:57  When I Seriliaze Object In the File how To save Assembly Name And Typename with My self

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