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setGeometry crashes widget UI



  • Hello. I am trying to set my UI widget size to the size of a HWND handle obtained by FindWindowA function.
    I am able to retrieve the size from the HWND handle, and i can see that my UI widget window is set to the correct size right before it crashes, what is going on?..

    The UI window crashes right after it is shown and i do not know why.
    This is the code responsible for the size of the UI widget window:

    void DefuseHUD::WindowSize()
    {
        tagRECT *rect;
        GetWindowRect(FindWindowA(NULL, "Untitled - Notepad"), rect);
        this->setGeometry(rect->left, rect->top, rect->right - rect->left, rect->bottom - rec- 
        >top);
        this->setWindowState((windowState()));
    }
    

    and i call this function from another .cpp file like this:

        DefuseHUD *hud = new DefuseHUD(); // create instance of UI widget window.
        hud->WindowSize();
        hud->show();


  • You are accessing a dangling pointer.

    tagRECT rect;
    Q_ASSUME(GetWindowRect(FindWindowA(NULL, "Untitled - Notepad"), &rect));
    setGeometry(QRect(QPoint(rect.left, rect.top),QPoint(rect.right, rect.bottom)));
    


  • You are accessing a dangling pointer.

    tagRECT rect;
    Q_ASSUME(GetWindowRect(FindWindowA(NULL, "Untitled - Notepad"), &rect));
    setGeometry(QRect(QPoint(rect.left, rect.top),QPoint(rect.right, rect.bottom)));
    


  • @vronin said in setGeometry crashes widget UI:

    n

    My god thanks .. So that was it all along i guess. Appriciate the help!


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