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• Instruction for installing an environment with Eclipse, Qt, and Qt integration with eclipse.

  - by Narek

  I want to use Qt lib but I don't know how to install Eclipse+Qt+Qtintegration. I have read some forums, that step by step tell what to download, where to download from, and then what to do. But that was for old versions of mentiond products. I ask to Qt developers tell me the way to install these items on Windows. Any forum or site will be fine. Thanks.

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• QT - How to apply a QToolTip on a QLineEdit

  - by Narek

  On a dialog I have a QLineEdit and a button. I want to enable a tool tip for the QLineEdit(in it or under it) when I press the button. Please give me a code snippet.

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• c++ - FIFO implementation

  - by Narek

  While implementing a FIFO I have used the following structure: struct Node { T info_; Node* link_; Node(T info, Node* link=0): info_(info), link_(link) {} }; I think this a well known trick for lots of STL containers (for example for List). Is this a good practice? What it means for compiler when you say that Node has a member with a type of it's pointer? Is this a kind of infinite loop? And finally, if this is a bad practice, how I could implement a better FIFO.

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• nm utility to get what is defined in .so file returns error

  - by Narek

  I need to get the symbols defined in .so file. I use latest Mac OS and I do this: /usr/bin/nm -gC libs/armeabi/libhello.so error: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/nm: invalid argument -C Usage: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/nm [-agnopruUmxjlfAP[s segname sectname] [-] [-t format] [[-arch ] ...] [file ...] As I understand this is another nm utility? It is connected with XCode? How to fix this issue?

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• Instruction for installing an environment with Qt and Qt integration with Visual Studio 2008.

  - by Narek

  I want to use Qt lib but I don't know how to install Visual Studio 2008+Qt+Qtintegration. I have read some forums, that step by step tell what to download, where to download from, and then what to do. But that was for old versions of mentiond products. I ask to Qt developers tell me the way to install these items on Windows. Any forum or site will be fine. Thanks.

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• Can we say that virtual function(Polymorphism) is for comfort(ease of handling) as Templates are??

  - by Narek

  For example concept of Templates in C++ are for comfort as compiler generates some additional code, for your class or for your function, isn't it? So we could live without template by doing some additional (manual work). What about virtual functions??? Are there any situations where both of them are irreplaceable?

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