I have a class named administrativeData in a DLL and I want to set NULL value or to clear the contents of a instance of this class. I tries like this Globals::administrativeData= NULL; But the error is "cannot convert from 'int' to 'administrativeData'"Probably a better name would be...
The first and the last arguments are fixed though, representing the pointer to the filename and NULL cast to the char* correspondingly. Note that casting a null pointer is mandatory for the function to work, and it also denotes the ending of the variable number of arguments. In short, the...
It is not a NULL Pointer Using the value of pointer as a condition In C++, if you use a null pointer in logical expression, then they will be evaluated as false. We can pass the given pointer in the if condition to check if it is null or not. Note: Sometimes dereferencing a nul...
This article discusses how to use version 4.2 of the Microsoft Foundation Class (MFC) library installed with Microsoft Visual C++ versions 5.0 and 6.0 to automate Microsoft Excel. Specifically, it shows how to navigate between the worksheets in a workbook and place data in the cells of each wor...
that it is not recommended to useNULLin contemporary C++ programming because it’s equivalent to initialization by the integer0, and the problems may arise as stated in the previous section. Still, we can check if a pointer is null by comparing it to0as demonstrated in the next code sample...
Optionally, for an absent device, call the CM_Get_Device_ID function to obtain the device instance ID and to display the ID before you remove the information. For the absent device, use the class information that you obtained in step 1 and the instance...
Learn how to get progress from the .NET Framework 4.5 installer. If you develop apps for this .NET version, you can include (chain) .NET Framework 4.5 setup in your app's setup.
Add library header to include pathNext, to use the library in code we need to make sure the compiler can find the shared header file when we include it. This can be accomplished using one of the following options:Specify the header path relative to the cpp file including it. This doesn...
The default build option is to generate a Release image of the operating system. As shown in the following illustration, use the toolbar to switch fromReleasebuild toDebugbuild. You're now about ready to build the platform. But in the section, Part 4: Remote Tools and Memory Leaks, you ...
dll in a c++ project Additional lib path in VC++ Directories or in Linker -> General AfxGetThread() returns NULL pointer to pThread in winmain.cpp afxwin1.inl ASSERT error in AfxGetResourceHandle() already defined in .obj Alternative for strptime() AlwaysCreate -> unsuccessfulbuild ambiguous ...