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Instructions

• C version
  Hide code
  BOOL CALLBACK MainDlgProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) { static ANCHORPOINTSSTRUCT aps; switch(msg) { case WM_DESTROY: free(aps.ap); break; case WM_SIZE: EasySize_SizeContents(&aps); break; case WM_INITDIALOG: //.. aps.ap = calloc( 7, sizeof(ANCHORPOINTS) ); aps.arraySize = 7; int i = 0; EasySize_SetDlgItem(&aps.ap[i++], hwnd, IDC_INTRO, ESF_BORDER,ESF_BORDER,ESF_BORDER,ESF_KEEPSIZE, ESO_INVALIDATE); EasySize_SetDlgItem(&aps.ap[i++], hwnd, IDC_BUTTON, ESF_KEEPSIZE,ESF_BORDER,ESF_BORDER,ESF_KEEPSIZE, 0); EasySize_SetDlgItem(&aps.ap[i++], hwnd, IDOK, ESF_KEEPSIZE,ESF_KEEPSIZE,ESF_BORDER,ESF_BORDER, 0); EasySize_SetDlgItem(&aps.ap[i++], hwnd, IDCANCEL, ESF_KEEPSIZE,ESF_KEEPSIZE,ESF_BORDER,ESF_BORDER, 0); EasySize_SetDlgItem(&aps.ap[i++], hwnd, IDC_DEFAULT, ESF_BORDER,ESF_KEEPSIZE,ESF_KEEPSIZE,ESF_BORDER, 0); EasySize_SetDlgItem(&aps.ap[i++], hwnd, IDC_TABCTRL, ESF_BORDER,ESF_BORDER,ESF_BORDER,ESF_BORDER, 0); EasySize_SetSimpleDlgItem(&aps.ap[i++], hwnd, IDC_STATUSBAR, ESO_AUTORESIZE); break; } return FALSE; }
  
  
• C++ version
  Hide code
  BOOL CALLBACK MainDlgProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) { static EasySize es; switch(msg) { case WM_DESTROY: es.Empty(); break; case WM_SIZE: es.SizeContents(); break; case WM_INITDIALOG: //... es.AddDlgItem(hwnd, IDC_INTRO, ESF_BORDER,ESF_BORDER,ESF_BORDER,ESF_KEEPSIZE, ESO_INVALIDATE); es.AddDlgItem(hwnd, IDC_BUTTON, ESF_KEEPSIZE,ESF_BORDER,ESF_BORDER,ESF_KEEPSIZE); es.AddDlgItem(hwnd, IDC_TABCTRL, ESF_BORDER,ESF_BORDER,ESF_BORDER,ESF_BORDER); es.AddDlgItem(hwnd, IDOK, ESF_KEEPSIZE,ESF_KEEPSIZE,ESF_BORDER,ESF_BORDER); es.AddDlgItem(hwnd, IDCANCEL, ESF_KEEPSIZE,ESF_KEEPSIZE,ESF_BORDER,ESF_BORDER); es.AddDlgItem(hwnd, IDC_DEFAULT, ESF_BORDER,ESF_KEEPSIZE,ESF_KEEPSIZE,ESF_BORDER); es.AddDlgItem(hwnd, IDC_STATUSBAR, ESO_AUTORESIZE); break; } return FALSE; }

Flags (or how to use EasySize)

• ESF_BORDER
  When you resize a window you may want its child windows to follow the distance from the border. That's exactly what this flag does.
  This is an example taken from the code above:
  //C++ version
  es.AddDlgItem(hwnd, IDC_TABCTRL, ESF_BORDER,ESF_BORDER,ESF_BORDER,ESF_BORDER);
  //C version
  EasySize_SetDlgItem(&aps.ap[i++], hwnd, IDC_TABCTRL, ESF_BORDER,ESF_BORDER,ESF_BORDER,ESF_BORDER, 0);
  
  The example above has:
  • ESF_BORDER for the left anchor
  • ESF_BORDER for the top anchor
  • ESF_BORDER for the right anchor
  • ESF_BORDER for the bottom anchor
  
  And this is from the example's compiled executable:
  
  
  
  Before the resize:
  
  
  After the resize:
  
• ESF_KEEPSIZE
  This is just the opposite of the ESF_BORDER flag: this flag tells EasySize to expand the distance from the border, effectively maintaining the size of the window towards that border.
  This is an example taken from the code above:
  //C++ version
  es.AddDlgItem(hwnd, IDCANCEL, ESF_KEEPSIZE,ESF_KEEPSIZE,ESF_BORDER,ESF_BORDER);
  //C version
  EasySize_SetDlgItem(&aps.ap[i++], hwnd, IDCANCEL, ESF_KEEPSIZE,ESF_KEEPSIZE,ESF_BORDER,ESF_BORDER, 0);
  
  The example above has:
  • ESF_KEEPSIZE for the left anchor
  • ESF_KEEPSIZE for the top anchor
  • ESF_BORDER for the right anchor
  • ESF_BORDER for the bottom anchor
  
  And this is from the example's compiled executable:
  
  
  
  Before the resize:
  
  
  After the resize:
  

• ESO_INVALIDATE This flag invalidate (redraw) the window after the resize. It's useful when the window isn't redrawn after being resized (for example, static controls).
  //C++ version
  es.AddDlgItem(hwnd, IDC_INTRO, ESF_BORDER,ESF_BORDER,ESF_BORDER,ESF_KEEPSIZE, ESO_INVALIDATE);
  //C version
  EasySize_SetDlgItem(&aps.ap[i++], hwnd, IDC_INTRO, ESF_BORDER,ESF_BORDER,ESF_BORDER,ESF_KEEPSIZE, ESO_INVALIDATE);
  
  
• ESO_AUTORESIZE This flag sends WM_SIZE messages without specifying the size data. Use it only when the window automatically docks to a border and size itself (for example: rebar and status bar).
  //C++ version
  es.AddDlgItem(hwnd, IDC_STATUSBAR, ESO_AUTORESIZE);
  //C version
  EasySize_SetSimpleDlgItem(&aps.ap[i++], hwnd, IDC_STATUSBAR, ESO_AUTORESIZE);