I can show Hello World in a MessageBox with this code: private: System::Void button1_Click(System::Object^ sender, System::EventArgs^ e) {MessageBox::Show("Hello, World!"); } but I cannot show it in a textbox with this code: private: System::Void button2_Click(System::Object^ sender, Sys...more >>

Whenever I try to debug a simple C++ application in VC++ I get this message: "This project is out of date: HelloWorld - Debug Win32" What does it mean? Do I need to modify something? Thanks, J.S. -- ...more >>

Hi , While upgrading my application from vc6 to vc7 I got followin linking errors : __declspec(dllimport) public: class ATL::CStringT<unsigned short,class StrTraitMFC_DLL<unsigned short,class ATL::ChTraitsCRT<unsigned short> > > __thiscall CHPCmdExecFrame::GetStringParam(int,int *)" (_...more >>

(I'm new to VS, so please forgive me if this is a faq.) I'm writing some Java web services and need to test them with C++ clients. I can use either a Windows Form application or an MFC application. I used VS.NET 2003 to create a C# client that successfully processes SOAP messages to and from t...more >>

I have the following in vb.net: DataSetObj.Tables(0).Rows(i).ItemArray(1) = UCase(DataSetObj.Tables(0).Rows(i).ItemArray(1)) I tried this is C#, but got the error that UCase and LCase don't exist. DataSetObj.Tables[0].Rows[i].ItemArray[1] = UCase(DataSetObj.Tables[0].Rows[i].ItemArray[1...more >>

hello, i am writing a GPS app in evc++ 4.0, i am using c-style char* instead of CStrings, i want to parse NMEA sentence such as "GPZDA,162913.48,19,08,2005,,*63" problem is when i use strtok it ignores an empty data field below is the output for the sentence above "GPZDA" "162913.48" ...more >>

I had a project where I had some code in my Button1_Click procedure and copied it over to a new project (that had the same button name on it) and I couldn't figure out why the event never fired. I then double-clicked on the button and a new event opened which normally would have been Button...more >>

Greetings, Is there anyway to creat a Window in XP that is not rectangular.... i.e. oval, round, rounded corners..... I've been challenged to take an old Win95 application and "give it a new look".... one thought I had was getting away from the old fashioned rectangular windows. Any ...more >>

Hi All, I have created a classic MFC Dialog application ( statically linked to MFC Library) which can run on any windows platform, without any library dependencies. Now, In this application I want to use .NET library say I want to use sockets provided by .Net using namespace System::Ne...more >>

Hi, I know how the show a MessageBox in Form.h module by using VC.NET. But I don't know how to show the MessageBox at another class such as task.cpp which called by the Form.h; my question is how to pass the arguments from Form.h to a MessageBox::Show() which included in a class method. Th...more >>

Hello, I am using Visual C++ 2005 Express Beta 2 and cannot sort out how to use the Scroll property value for a trackBar. Under Event properties the name for the Scroll property is trackBar1_Scroll so how do I print out the Scroll value? I have tried using Console::WriteLine(tra...more >>

In VB I used to use the function IsNumeric() to test that characters entered in a field where numeric. What is the C# equivqlent? Thanks in advance...more >>

Hi. i got some trouble including Managed C++. Refering to: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmxspec/html/vcmg_overview.asp. There is no "Compile As Managed" property in the General folder under C/C++. Ive tried Adding /clr to the command line, but i recive:...more >>

Hi, Using IDL, I can declare my enumeration like following, library MyAppLib { importlib("stdole32.tlb"); importlib("stdole2.tlb"); typedef enum MyColor { ORANGE = 1, RED = 2 } MyColor; } COM compatible cli...more >>

Hello, In C# I can write TextWriter tw = new StreamWriter("d:\\path\\file.txt"); tw.WriteLine("fred"); tw.Close; What is the C++ equivalent for Visual C++ ? Thanks Cheers Geoff ...more >>

I'm trying to learn VC++.NET. I used till now Borland C++ Builder 6. I had a program starting like this: #include <fstream.h> #define TEMP_FILES 200 ...... ....... fstream chunk_file[TEMP_FILES]; With Borland and g++ I had no problems with these lines instead VC++.NET tells me that can'...more >>

Hi, I am writing a COM server with ATL and VC++.NET. I wonder if there is a way to reuse COM method implementations without delegation, something like this: __interface IFoo : IDispatch { [id(1)] HRESULT MyMethod(); // other method declarations... } class CFooBase : public IFoo { ...more >>

Group, I'm trying to add 2 textBox text... but some how does compile properly at all... textBox3->Text = textBox1->Text + textBox2->Text; How would i fix this issue? Please HELP Ronin ...more >>

Hello, I am trying to get a grip on where to place the initialization of two arrays in the code below which was created using Visual C++ 2005 Express Beta 2... private: static array<String^>^ LHSquestions = gcnew array<String^> {"question 1","question 2"}; private: static array<String^>^ R...more >>

I've inherited a COM dll project that was switched from the VS6 environment to VS.Net. I thought I could debug the COM dll code by adding a VB.Net project to the solution, but when I set breakpoints in the dll, the code in the VB test program just passes over them. I'm guessing that it has s...more >>

Hi , I am migrating from VC 6.0 to VC 7.0 with ( windows Control Lib option in vc dot net ) where I want to draw an image using StretchDIBits. I am not able to get the HDC of the Window. I tried using get_handel() which gives undefined value. Any help regarding this will be grea...more >>

What do you make of this? I cannot tell for sure but it almost seems as the the transition thunk to get back from the native bool method to the managed caller is looking at eax and, if any bit is set, normalizing it to 0x00000001. If it wants to normalize the value then it should only oper...more >>

Hello, Can I separately declare and initialize a string array? How and where would I do it in the code below? It was created using Visual C++ 2005 Express Beta 2 ... In C# I would have private string[] myArray; and later myArray = new string[] {"element 1","element 2"}; Now, I k...more >>

Hello all I program win32 api in C and I need a multiline listbox, could anyone please tell me how I can accomplish that or refer me to some sample application. Thank you in advance ...more >>

I am looking for an application skinning engine that supports colour themes. Winamp is an example of an app supporting colour themes. For example in Winamp I can pick the "Winamp Modern" skin and apply one of the 30 or so color themes to that skin - so it's the same skin in different colors. ...more >>

Hello, After much effort I have got the Visual C# code below to work using Visual C# 2005 Express Beta 2 and now I am trying to convert it to Visual C++ code so that I can use it in Visual C++ 2005 Express Beta 2. My reason for doing this is that I believe (do tell me if I am wrong!) that ...more >>

I've been searching google but have not found much. Is there any way to obtain a demangled, pretty function name from a mangled one? I seem to recall that there was an executable that you could feed a mangled name to but I can't find it. Anyone know? Thanks in advance... -Ben...more >>

Hey, When migrating VC6 projects to VC7 I often get this warning when compiling the source files that were original VC6 project files that did not emit this warning: This appears to be related to the original stdafx.h file contents. [Warning C4005: 'UNICODE' macro redefinition] with the ...more >>

Hi I want to use the static MFC within a dll, but I get the following errors when linking: nafxcwd.lib(appcore.obj) : error LNK2001: unresolved external symbol ___argv nafxcwd.lib(appcore.obj) : error LNK2001: unresolved external symbol ___argc nafxcwd.lib(apphelp.obj) : error LNK2001: unr...more >>

hello all, ms visual studio 2003, i need to read serial bytes (one byte at a time) from serial port, and the catenate it to a char* (cannot use strings) strcat require that the 2nd parameters (the src)to be of type const char*. so i cast the (char byte) to be a (char*) i have the followi...more >>

I try to write the following line in a syntaxically correct way, but I can't find it!!! List::Enumerator<FontCache^>^ fce = fontCache->GetEnumerator(); what's the right syntax?!!? ...more >>