Is it possible to host a QT application in a WPF application?

Question

I am trying to create a WPF GUI application to host an existing QT GUI application as part of the main user interface.

QT does not need to deal with mouse / keyboard input.

I tried the approach mentioned in this SO Post . It seems that all these approaches do not work for the QT application.

Answer 1

I do not know if this is the right thing to do, but what I used several times to embed other applications (on the Internet):

public partial class MainWindow : Window
{
private Process _process;

[DllImport("user32.dll")]
private static extern int SetWindowLong(IntPtr hWnd, int nIndex, int dwNewLong);

[DllImport("user32.dll", SetLastError = true)]
private static extern int GetWindowLong(IntPtr hWnd, int nIndex);

[DllImport("user32")]
private static extern IntPtr SetParent(IntPtr hWnd, IntPtr hWndParent);

[DllImport("user32")]
private static extern bool SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int X, int Y, int cx, int cy, int uFlags);

private const int SWP_NOZORDER = 0x0004;
private const int SWP_NOACTIVATE = 0x0010;
private const int GWL_STYLE = -16;
private const int WS_CAPTION = 0x00C00000;
private const int WS_THICKFRAME = 0x00040000;
const string patran = "patran";
public MainWindow()
{
    InitializeComponent();

    Loaded += (s, e) => LaunchChildProcess();
}

private void LaunchChildProcess()
{
    _process = Process.Start("/path/to/QtExecutable.exe");
    _process.WaitForInputIdle();

    var helper = new WindowInteropHelper(this);

    SetParent(_process.MainWindowHandle, helper.Handle);

    // remove control box
    int style = GetWindowLong(_process.MainWindowHandle, GWL_STYLE);
    style = style & ~WS_CAPTION & ~WS_THICKFRAME;
    SetWindowLong(_process.MainWindowHandle, GWL_STYLE, style);
    // resize embedded application & refresh
    ResizeEmbeddedApp();
}

private void ResizeEmbeddedApp()
{
    if (_process == null)
        return;
    SetWindowPos(_process.MainWindowHandle, IntPtr.Zero, 0, 0, (int)ActualWidth, (int)ActualHeight, SWP_NOZORDER | SWP_NOACTIVATE);
}

protected override Size MeasureOverride(Size availableSize)
{
    Size size = base.MeasureOverride(availableSize);
    ResizeEmbeddedApp();
    return size;
}

Just change this skeleton to your needs. Let me know if this works.

Answer 2

. . .

: EXE- WPF (http://www.codeproject.com/Tips/673701/Hosting-EXE-Applications-in-a-WPF-Window-Applicati). . "notepad.exe" QT. : WPF exe QT , QT.

: