How do I lock a button in window to the lower right corner.

[winnoob]

Hi
I got a standard window to display with a button inside but I don't know how to lock the button to the corner.

I put the code for the button in WM_CREATE:

    case WM_CREATE:
        {
        HWND hwndButton = CreateWindow(
            L"BUTTON",  // Predefined class; Unicode assumed 
            L"OK",      // Button text 
            WS_TABSTOP | WS_VISIBLE | WS_CHILD | BS_DEFPUSHBUTTON,  // Styles 
            10,         // x position 
            10,         // y position 
            100,        // Button width
            100,        // Button height
            hWnd,     // Parent window
            NULL,       // No menu.
            (HINSTANCE)GetWindowLongPtr(hWnd, GWLP_HINSTANCE),
            NULL);      // Pointer not needed.
        }
        break;

Now I am trying to put the button in the lower right corner with GetWindowRect and SetWindowPos but I don't know how to can anybody help?

    case WM_PAINT:
        {
            PAINTSTRUCT ps;
            HDC hdc = BeginPaint(hWnd, &ps);
            
            BOOL GetWindowRect(
                HWND   hWnd,
                LPRECT lpRect
            );

            //Trying to set the Variables for SetWindowPos so the button is always in the lower right corner
            X = lpRect.right - ButtonHSize - ButtonRightPadding
            Y = lpRect.bottom - ButtonVSize - ButtonBottomPadding
            cx = lpRect.right - ButtonRightPadding
            cy = lpRect.bottom - ButtonBottomPadding

            BOOL SetWindowPos(
                [in]           HWND hwndButton,
                NULL,
                [in]           int  X,
                [in]           int  Y,
                [in]           int  cx,
                [in]           int  cy,
                [in]           UINT uFlags
            );

            EndPaint(hWnd, &ps);
        }
        break;

Is that the right spot for that code and how do I make it work?

[VictorN]

1. case WM_PAINT is the wrong place for moving the child control position. You have to use the case WM_SIZE.
2. you have to read/learn the Microsoft docs (including the samples) to understand how the all this process with windows works. See, for instance this article: https://docs.microsoft.com/en-us/win.../using-windows