Painting issues where the frame of the window is not getting painted properly

Hi I have two modeless dialogs. One dialog is a member variable of a CWnd class and the Create function is called on this dialog member variable. This dialog displays correctly. There is another dialog which is created as a pointer using new operator and Create is called on this dialog. There are issues with the second dialog on Windows 2003 with one of our clients. Wanted to know if there is a difference when a modeless dialog is created as a member variable of a Wnd and using new operator. Secondly, in both the cases the *pParent passed is NULL. Is there any known issue passing the parent window pointer as NULL, or it should be the applications main frame window or the Desktop window? Thanks

Thanx Orjan I will try that out

Thanx Orjan Cant we use Microsoft Cryptographic API's on the C++ win32 application for the same? Like the one here http://msdn.microsoft.com/en-us/library/aa380255(v=VS.85).aspx[^]

Hi We need to encrypt a string and send across to a web service in C# over the internet. The webservice would decrpt the string and process it. How can I ensure that I use common encryption/decryption algorithms on both the client (C++, win32) and server side (C#) I have tried to build a C++ dll with the enc/dec interfaces and give it to the C# service to call them using marshaling, but I am failing to get the desired result. Please help Thanks in advance

I need to access a .NET web service in a native C++ application. People have suggested to use gSOAP (which is costly for a commercial license) and I have found articles where the same can be done using SOAP tool kit (which is no longer supported by microsoft) To use SOAP toolkit method MSXML should be installed on the PC, and ours is a portable application we cannot afford it. I looked at other alternatives and found the following article - http://support.microsoft.com/kb/908574[^] But I am getting the following errors: error C2065: 'IHelloWorldPtr' : undeclared identifier error C2146: syntax error : missing ';' before identifier 'ptrHW' error C3861: 'ptrHW': identifier not found error C2065: 'ptrHW' : undeclared identifier error C2227: left of '->SayHelloWorld' must point to class/struct/union/generic type I am new to COM and .NET can somebody help to resolve the issue. And is this approach the write way to access .NET web services? Thanx in advance

I need to access a .NET web service in a native C++ application. People have suggested to use gSOAP (which is costly for a commercial license) and I have found articles where the same can be done using SOAP tool kit (which is no longer supported by microsoft) To use SOAP toolkit method MSXML should be installed on the PC, and ours is a portable application we cannot afford it. I looked at other alternatives and found the following article - http://support.microsoft.com/kb/908574[^] But I am getting the following errors: error C2065: 'IHelloWorldPtr' : undeclared identifier error C2146: syntax error : missing ';' before identifier 'ptrHW' error C3861: 'ptrHW': identifier not found error C2065: 'ptrHW' : undeclared identifier error C2227: left of '->SayHelloWorld' must point to class/struct/union/generic type I am new to COM and .NET can somebody help to resolve the issue. And is this approach the write way to access .NET web services? Thanx in advance

Thanx Rajesh

Yes, so to my understanding, all the memory allocated using new when a process is running is allocated from the process memory heap and it will be eventually reclaimed by the OS once the process terminates.. right?

If your process runs for some time and doesn't care to release unwanted memory then it won't be reclaimed by the OS and the memory "leaks". This part of your reply is confusing, does it mean that if I allocate memory in my program but fail to release it properly during application exit / if the application has crashed / terminated from the task manager, will this allocated memory (allocated during program execution) will not be returned to the OS and result in memory leak? Thanx in advance

When process exit, will the memory that's left undeleted be returned to OS? My application is a C++ application.

Hello Guys Is there a way to change the name of the exe that gets built during compilation. I want to define flags based on which the exe name should be generated (I donno where to define the flags as well), for example if i define a flag #define MY_EXE "myexe.exe" then the exe name generated should be myexe.exe. If i define a flag #define YOU_EXE "youexe.exe" then the exe name generated should be youexe.exe Thanx in advance

hello Ratheesh This may sound strange, but even I had a similar issue with VC6 after installing Project / Visio 2003 / 2007. Have you installed any of these softwares recently, or you have this problem since the beginning? Thanx

Hello Does memory mapped file I/O has a real advantage over disk I/O. Because I am trying to read a file using ::ReadFile API (block by block) and compare it with memory mapped file I/O mechanism from http://www.codeproject.com/KB/files/mmfio.aspx I then tried to compare the time taken to read a file of 700MB using both the techniques. I found that the memory mapped file I/O took almost the same time as disk I/O or sometimes more time. So, would like to know whether memory mapped file I/O does really provide an advantage over disk I/O and how do I achieve it. Thanks

Hello I need to build a C++ MFC application which would consume a C# webservice, could anybody provide some references for the same. I have found an article in CP which says we need SOAP toolkit for the same, is that the only option or do we have any other alternative. Thanx

Where are you trying to create the directory, if UAC is enabled and if you try to create in C: or on locations on the flash drive CreateDirectory could fail, in such a case your application has to run with admin rights

Try out splitpath API, it will meet your requirement, check out MSDN for the syntax Thanx

Hi My application (say App.exe) is supposed to be launched by another process called Laucher.exe since some environment variables are needed to be set for App.exe to run. I am using CreateProcess API in Launcher.exe to set the necessary environment variables. I had written a sample earlier where in both by Launcher.exe and App.exe were non-unicode (built in VC 6.0). But, currently I have moved to VS 2008 which where in the application comes with unicode settings by default. I have converted both Launcher.exe and App.exe to Unicode, but I am having a problem to use CreateProcess in Launcher.exe to launch App.exe Since my App.exe is in unicode I think we have to set the lpEnvironment (in CreateProcess to CREATE_UNICODE_ENVIRONMENT flag) But just setting this and using the API the same way fails to launch my App.exe. I could not find sufficient links on the internet which explain how to use this flag and launch the application in a unicode environment Can somebody help me out if you have used this in advance? Thanx Vipin

Thanx Sandeep Simple and effective solution :) Regards, Vipin.

Hello I have a C++ class with few attributes and functions. Whenever a new value is assigned to a particular attribute (say the attribute is an integer variable in the class) a function should get called (triggered) and the piece of code inside the function should get executed. Is it possible? If yes, what is the mechanism. Please let me know. Thanx