VC tips summary of the window skills

This paper collects and summarizes the window skills of VC tips, which have certain reference value for the window design of VC program development. Details are as follows:

Maximize the window as soon as it starts

Put the InitInstance() function in the application class (CxxxApp)

m_pMainWnd->ShowWindow(SW_SHOW); 

Instead of

m_pMainWnd->ShowWindow(SW_SHOWMAXIMIZED);

Maximizes the display as soon as the window starts.

2. How to set the initial size of the window

Add to the InitInstance() function of the application class (CxxAPP) :

m_pMainWnd->SetWindowPos(NULL,x,y,Width,Height,SWP_NOMOVE);

Width is the Width of the window and Height is the Height of the window
SWP_NOMOVE means ignore position (x,y).
Such as:

BOOL CDzyApp::InitInstance()
{
  AfxEnableControlContainer(); 
   ...  
  // The one and only window has been initialized, so show and update it.
  m_pMainWnd->SetWindowPos(NULL,0,0,750,555,SWP_NOMOVE);//Set the initial size of the window to 750*555
  m_pMainWnd->ShowWindow(SW_SHOW); 
  m_pMainWnd->UpdateWindow(); 
  return TRUE; 
}

3. Center the window

Either of the following two methods is available:

Add in the InitInstance() function of the application class (CxxxApp) :

m_pMainWnd->CenterWindow( GetDesktopWindow() );

(2) in the main frame class (mainfrm.cpp) OnCreate() function add:

CenterWindow( GetDesktopWindow() );

Such as:

int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct) 
{ 
  if (CFrameWnd::OnCreate(lpCreateStruct) == -1) 
  return -1; 
   ...  

  // TODO: Delete these three lines if you don't want the toolbar to 
  // be dockable 
  m_wndToolBar.EnableDocking(CBRS_ALIGN_ANY); 
  EnableDocking(CBRS_ALIGN_ANY); 
  DockControlBar(&m_wndToolBar); 

  CenterWindow( GetDesktopWindow() ); //Make the window open in the middle of the screen

  return 0; 
}

4. How do I change the window title

The window title generally takes the form of: document title - program title

(1) set the document title:

Add a statement to the OnNewDocument() function of the document class (CxxxDoc) : SetTitle(" document name ");
Such as: TextEditorDoc. CPP:

BOOL CTextEditorDoc::OnNewDocument() 
{ 
  if (!CDocument::OnNewDocument()) 
    return FALSE; 
  // TODO: add reinitialization code here 
  // (SDI documents will reuse this document) 
  SetTitle(" unnamed .txt");  //Set the document title
  return TRUE; 
}

(2) set program title:

Add the statement m_strTitle = _T(" program title ") to the PreCreateWindow() function of the frame class (CMainFrame).
Such as: MainFrm. CPP:

BOOL CMainFrame::PreCreateWindow(CREATESTRUCT& cs) 
{ 
  if( !CFrameWnd::PreCreateWindow(cs) ) 
    return FALSE; 
  // TODO: Modify the Window class or styles here by modifying 
  // the CREATESTRUCT cs 
  m_strTitle = _T(" Text organizer ");  //Set program title
  return TRUE; 
}

These two points apply to view-document structures, where the OnNewDocument() function is automatically run when a new document is created, where the appropriate title can be set. For programs that are not documented, you can modify the title by:

(3) modify window title:

Modifying the window title is usually done in the open file function OnFileOpen() and save as the function OnFileSaveAs(). You can use the following functions:

AfxGetMainWnd()->SetWindowText(" Document title "+" - "+" Program title ");

Document titles and program titles can use defined string variables.