Qt Inspector is a tool to browse the object/widget tree of Qt applications.
Qt Inspector starts a specified application or connects to a specified process and once connected it can:
- Browse the object tree of Qt applications.
- View properties of objects
- Edit properties of objects
- Locate a widget in the object tree by clicking on it in the application
Qt Inspector currently runs on Linux and Mac.
You will need protoc in your PATH. On Debian/Ubuntu, install protobuf-compiler.
cmake <path to Qt inspector src>
make -j2
Qt Inspector can either attach to an existing application or launch a specified application and then attach to it.
Recommended usage is to specify the program name and arguments.
./qtinspector <program name> <args>
./qtinspector <process ID of running Qt app>
Qt Inspector operates by injecting a helper library into the target process when starting it using LD_PRELOAD / DYLD_INSERT_LIBRARIES or via gdb (if attaching to an existing process).
This helper library sets up a local socket and listens for requests from the inspector process. The inspector and target process communicate via protocol buffer messages over this socket.