I'm facing a problem on Win32 API. I have a program that when it handles WM_PAINT messages it calls BeginPaint to clip the region and validate the update region, but the BeginPaint() is always generating a WM_NCPAINT message with the same updata region even if the touched part that need repaint it's only inside the client region. Do an...
I'm trying to automate a gdb session using the --command flag. I'm trying to set a breakpoint on a function in a shared library (the Unix equivalent of a DLL) . My cmds.gdb looks like this: set args /home/shlomi/conf/bugs/kde/font-break.txt b IA__FcFontMatch r However, I'm getting the following: shlomi:~/progs/bugs-external/kde/font...
A rather comprehensive site explaining the difficulties and solutions involved in using a dll written in c/c++ and the conversion of the .h header file to delphi/pascal was posted to a mailing list I was on recently, so I thought I'd share it, and invite others to post other useful resources for this, whether they be links, conversion to...
LRESULT result = ::SendMessage(hWnd, s_MaxGetTaskInterface, (WPARAM)&pUnkReturn, 0); The value of result after the call is 0 I expect it to return with a valid value of pUnkReturn , but it returns with a NULL value . Necessary Information before this call : const UINT CMotionUtils::s_MaxGetTaskInterface = RegisterWindowMessage(_T("...
Hi! I have C++ project (VS2005) which includes header file with version number in #define directive. Now I need to include exactly the same number in twin C# project. What is the best way to do it? I'm thinking about including this file as a resource, then parse it at a runtime with regex to recover version number, but maybe there's a b...
I cannot understand the Oracle documentation. :-( Does anybody have any pointers to an example how to fetch multiple rows of simple data from Oracle via OCI? I currently use OCIDefineByPos to define single variables (I only need to do this for simple integers -- SQLT_INT/4-byte ints) and then fetch a single row at a time with OCIStmtEx...
When I used to write libraries in C/C++ I got into the habit of having a method to return the compile date/time. This was always a compiled into the library so would differentiate builds of the library. I got this by returning a #define in the code: C++: #ifdef _BuildDateTime_ char* SomeClass::getBuildDateTime() { return _Buil...
In particular, wouldn't there have to be some kind of function pointer in place anyway? ...
I decided to try http://www.screwturn.eu/ wiki as a code snippet storage utility. So far I am very impressed, but what irkes me is that when I copy paste my code that I want to save, '<'s and '[' (http://en.wikipedia.org/wiki/Character_encodings_in_HTML#Character_references) invariably screw up the output as the wiki interprets them as e...
In C++, when is it best to use the stack? When is it best to use the heap? ...
What would be the best WPF control in C# (VS 2008) that you can place on a form that would allow you to do drawing similar to the "Paint" function for the CWnd class in C++? Also, that could display bitmaps, have a scroll bar, and the ability to accept user inputs (ie. MouseMove, Button Clicks, etc...). Basically all the functionality ...
Since the only operations required for a container to be used in a stack are: back() push_back() pop_back() Why is the default container for it a deque instead of a vector? Don't deque reallocations give a buffer of elements before front() so that push_front() is an efficient operation? Aren't these elements wasted since they will n...
What sort of registration frameworks are available for C / C++ applications? I'm looking for a library that will handle the cryptographic verification of license and registration keys to enable the full features of an application, and optionally disable features after a specified time interval has elapsed. For example, on the Mac one m...
If by some miracle a segfault occurs in our program, I want to catch the SIGSEGV and let the user (possibly a GUI client) know with a single return code that a serious problem has occurred. At the same time I would like to display information on the command line to show which signal was caught. Today our signal handler looks as follows...
From managed c++, I am calling an unmanaged c++ method which returns a double. How can I convert this double into a managed string? Sorry if this is a stupid question, I'm still very new with C++ in .net. Thanks! ...
Do you use Luabind, toLua++, or some other library (if so, which one) or none at all? For each approach, what are the pro's and con's? ...
I'm still trying to decide whether my (home) project should use UTF-8 strings (implemented in terms of std::string with additional UTF-8-specific functions when necessary) or some 16-bit string (implemented as std::wstring). The project is a programming language and environment (like VB, it's a combination of both). There are a few wish...
I've been programming in C,C++,C# and a few other languages for many years, mainly for Windows and Linux but also embedded platforms. Recently started to do some iPhone programming as a side project so I'm using Apple platforms for the first time since my Apple II days. I'm wondering what other developers that are coming to Mac OSX, Xcod...
I've heard that, in C++, the static_cast function should be preferred to C-style or simple function-style casting. Is this true? Why? ...
I wish to scan a very large c++ codebase and identify which header files are being included unnecessarily. CScout seems to have this functionality for c. I need it for c++. ...