Setup guide

Since the page was bare bones, I tried to create a small setup guide.

Author: weslleyskah

web/wiki/GDB-qtcreator.md

@@ -4,12 +4,96 @@ summary: WAP.
 
 # Qt Creator
 
-This page is extremely work-in-progress. Eventually it will cover setting up Qt Creator so you can "Start and Debug External Application ..." (you need to build it from source to get access to the latest patch that makes this workable), rebuilding and reinstalling the involved packages in debug, !strip mode and debugging them. The also being able to see Python callstacks and pretty printing of GDB internals in-case you are debugging those sorts of things. For now, this is all I have:
-
-.. To see Python Callstacks and vars when debugging something that intermixes Python and C/C++ (e.g. pygtk)
-.. add to .gdbinit or QtCreator Tools->Options->Debugger->GDB->Additional Startup Commands, enter
-  python
-  sys.path.append('C:/msys64/mingw64/share/gdb/python3')
-  import python-gdb
-  reload(python-gdb)
-  end
+This page is extremely work-in-progress. Eventually it will cover setting up Qt Creator so you can "Start and Debug External Application ..." (you need to build it from source to get access to the latest patch that makes this workable), rebuilding and reinstalling the involved packages in debug, !strip mode and debugging them. 
+
+---
+
+# Qt Creator Setup with C++ (MSYS2 + UCRT64)
+
+## 1. Installation
+
+### Install the MSYS2 Toolchain
+1. Download and install [MSYS2](https://www.msys2.org/).
+2. In the MSYS2 terminal, install the UCRT64 toolchain:
+   ```bash
+   pacman -S --needed base-devel mingw-w64-ucrt-x86_64-toolchain
+   ```
+3. Add `C:\msys64\ucrt64\bin` to your Windows **PATH** environment variable.
+
+### Install Qt Creator
+In the MSYS2 UCRT64 terminal:
+```bash
+pacman -S mingw-w64-ucrt-x86_64-qt6-base mingw-w64-ucrt-x86_64-qt-creator mingw-w64-ucrt-x86_64-cmake mingw-w64-ucrt-x86_64-ninja
+```
+You can also disable clang by going through
+``Help > About Plugins > C++ > ClangCodeModel``
+and uncheck the "Load" box.
+
+---
+
+## 2. Configuration
+
+Launch Qt Creator from the UCRT64 terminal:
+```bash
+qtcreator
+```
+> Or open from ``C:\msys64\ucrt64\bin\qtcreator.exe``.
+
+Go to **Edit > Preferences** >  **Kits**.
+
+### Compilers
+- Click the **Compilers** tab.
+- Confirm `GCC (C++, x86 64bit)` from `C:\msys64\ucrt64\bin` is detected.
+- If missing: **Add > GCC > C++** and point to `g++.exe` in the bin folder.
+
+### Kits
+- Go to the **Kits** tab and select **Desktop** (or create a new kit) and ensure the configurations are set.
+  |  |  |  |
+  |---|---|---|
+  | Compiler | GCC (C++) | C:\msys64\ucrt64\bin\g++.exe
+  | Debugger | GNU gdb (ucrt64 bin) | C:\msys64\ucrt64\bin\gdb.exe
+  | Qt Version | | C:\msys64\ucrt64\bin\qmake-qt6.exe
+  | CMake Tool | | C:\msys64\ucrt64\bin\cmake.exe
+
+---
+
+## 3. "Hello World!"
+
+- Open `mainwindow.ui` inside the Forms folder and drag a **Label** widget onto it or
+- Add the label on `mainwindow.cpp`:
+
+```cpp
+#include "mainwindow.h"
+#include "ui_mainwindow.h"
+
+MainWindow::MainWindow(QWidget *parent)
+    : QMainWindow(parent)
+    , ui(new Ui::MainWindow)
+{
+    ui->setupUi(this);
+
+    QLabel *label = new QLabel("Hello World!", this);
+}
+
+MainWindow::~MainWindow()
+{
+    delete ui;
+}
+```
+
+- You can now run the project using the green arrow left below.
+
+You can also open the project from Qt Creator by running the CMakeLists.txt file:
+>File > Open File or Project > select CMakeLists.txt
+
+
+---
+
+### Deploy as Standalone Executable
+
+```bash
+cd path/to/your/project
+/c/msys64/ucrt64/bin/windeployqt6.exe qt-project.exe
+```
+
+This adds all the dependencies next to your executable.