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Making first MDI child window start out maximized

· One min read

To make first MDI child window start out maximized

  1. Add a ActivateFrame() which is a CChildFrame virtual function
  2. Modify the function with the below code snnipet
void CChildFrame::ActivateFrame(int nCmdShow) { 
  //////////////////////////////////////////////////////////////////////////// 
  // To make first MDI child window start out maximized 
  // //////////////////////////////////////////////////////////////////////////// 
  m_pMainWnd->ShowWindow(SW_SHOWMAXIMIZED);

// if another window is open, use default 
if(GetMDIFrame()->MDIGetActive()) {
   CMDIChildWnd::ActivateFrame(nCmdShow); 
} else // else open the child window maximized.
{ 
  CMDIChildWnd::ActivateFrame(SW_SHOWMAXIMIZED); 
}

//////////////////////////////////////////////////////////////////////////// }