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Until now my Visual Studio 2008 debugger gracefully stepped into Qt library code when I pressed F11. After upgrading Qt to the latest version and changing QTDIR, F11 does not step into library code anymore. Any clues how to make the debugger smart again?
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Select Tools > Options > Debugger > General > Add. In the Source path field, specify the source path in the debug information of the executable as reported by the debugger. In the Target path field, specify the actual location of the source tree on the local machine.
To bring up the Run and Debug view, select the Run and Debug icon in the Activity Bar on the side of VS Code. You can also use the keyboard shortcut Ctrl+Shift+D. The Run and Debug view displays all information related to running and debugging and has a top bar with debugging commands and configuration settings.
An unclaimed breakpoint represents a task to interrupt the debugged program and passes the control to you later. It has two states: pending and implanted .
To set a breakpoint in source code: Click in the far left margin next to a line of code. You can also select the line and press F9, select Debug > Toggle Breakpoint, or right-click and select Breakpoint > Insert breakpoint. The breakpoint appears as a red dot in the left margin.
Activate the modules list, Debug - Windows - Modules, to see what libraries are loaded and if debug symbols are loaded for those libraries. Note that you need to have the debugger active on your process to be able to do this.
In debug mode, the Qt libraries should be suffixed by d. QtCored4.dll for instance. If you see QtCore4.dll on the list, you have linked to the wrong libraries. If it does say QtCored4.dll but under Symbol Status there is something different than Symbols loaded., then that's the reason. You can manually load the symbols here by right clicking on the dll and selecting Load Symbols. It asks for the Pdb file after clicking that.
You can add more pdb file locations, if they weren't loaded but exist, from Tools - Options - Debugging(tree) - Symbols(tree). If you want the symbols to be automatically loaded.
Should it give some error, that the pdb file doesn't match the binary or something like that, you should re-build your Qt debug version, unless you have more pdb files to try. Use the Visual studio command prompt and go to the Qt directory, run configure and nmake. It takes a while, possibly some hours. There was some switch to only build debug version but i forgot where it goes. Note that the build might fail and after that it's a lot of fun www.google.com searches. The best bet might be to get the source only package, I forgot where to get that and it's not easily found. If you know where to get it, tell me please. I vaguely remember that there might be some other way to build the debug version, but this is the only one i know for sure.
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