How to create a resizable frameless window?

[Kamichanw]

I'm trying to create a resizable frameless window. In onPositionChanged of a MouseArea that fills entire Window, here is part of my code

if (resizable && cursorShape !== Qt.ArrowCursor) {
    // resize
    var leftTop = Qt.point(control.x, control.y)
    var rightBottom = Qt.point(control.x + width, control.y + height)
    var globalMouse = mapToGlobal(Qt.point(mouseX, mouseY))
    if (edgeFlag & ShadowWindow.Edge.Left)
              leftTop.x = globalMouse.x
    // TODO...
    control.x = leftTop.x
    control.width = rightBottom.x - leftTop.x
}

Currently, I just have written the code for resizing when mouse presses on left edge of my Window. And edgeFlag here represents the position of mouse. Now, there are two problems.

1. Resizing only works when I move the mouse press on the left edge to the right, i.e. shrink the window.
2. Window shakes violently when resizing.
   Can anyone help me?

[GrecKo]

@Kamichanw you can do it simply with QWindow::startSystemResize (and its friend startSystemMove)

[Kamichanw]

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