Creating Win32 files to create / resize / query

Question

I am trying to "stretch" an existing application.

The goal is to make the existing application grow without changing the code of this application.
Cosntraint is that the stretched application will not “notice” it, so if the application asks for the size of the created window, it will see the original size, not the size.

I managed to resize windows using SetWindowsHookEx:

HHOOK hMessHook = SetWindowsHookEx(WH_CBT,CBTProc, hInst, 0);

and

LRESULT CALLBACK CBTProc( __in  int nCode,
                          __in  WPARAM wParam, 
                          __in  LPARAM lParam)
{
   if (HCBT_CREATEWND == nCode)
   {
      CBT_CREATEWND *WndData = (CBT_CREATEWND*) lParam;
      // Calculate newWidth and newHeight values...
      WndData->lpcs->cx = newWidth;
      WndData->lpcs->cy = newHeight;
   }

   CallNextHookEx(hMessHook, nCode, wParam, lParam);
}

The problem I am facing is that I cannot get the stretched application to see the original sizes.

For example, if you created a .NET form:

public class SimpleForm : Form
{
    public SimpleForm()
    {
        Width = 100;
        Height = 200;
    }
}

And then the size is requested:

void QuerySize(SimpleForm form)
{
   int width = form.Width;
   int height = form.Height;
}

width height 100 200, . , .

?

Answer 1

, - API, GetWindowRect - Windows. , Detours API, Win32. ( Detours )