When i create Cdockablepane on the MFC, the pane size is not restored to its previous state on run.

Question

Hello, I am making software using the Cdockablepane of MFC.

But there's one problem.

If the Cdockablepane attached to the Mainfrm is more than 1780 pixels horizontally, the size returns to 1780 when it is shut down and restarted.

Strangely, the Cdockablepane floating outside MainFrm returns to its original size when it restarts, even if the horizontal size is larger than 1780 pixels.

Please help me with my poor skills.

please, refer to below captured pictures.

[Before shutdown]

[After restarted]

Answer 1

I solved it.

When I added the cs.cy and cs.cx codes as below, the change due to the size limitation disappeared when I restarted.

Thank you.

BOOL CMainFrame::PreCreateWindow(CREATESTRUCT& cs)
{
   if(!Cls_DrMfcDockMainFrm::PreCreateWindow(cs))
      return FALSE;
   // TODO: Modify the Window class or styles here by modifying
   //  the CREATESTRUCT cs
   cs.dwExStyle &= ~WS_EX_CLIENTEDGE;
   cs.lpszClass = AfxRegisterWndClass(0);
   cs.cx = GetSystemMetrics(SM_CXSCREEN);
   cs.cy = GetSystemMetrics(SM_CYSCREEN);
   
   if (cs.hMenu != NULL)
   {
      ::DestroyMenu(cs.hMenu);
      cs.hMenu = NULL;
   }
}