/*-------------------------------------------------
   CHECKER4.C -- Mouse Hit-Test Demo Program No. 4
                 (c) Charles Petzold, 1998
  -------------------------------------------------*/

#include <windows.h>

#define DIVISIONS 5

LRESULT CALLBACK WndProc   (HWND, UINT, WPARAM, LPARAM) ;


int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
                    PSTR szCmdLine, int iCmdShow)
{
     static TCHAR szAppName[] = TEXT ("PENS") ;
     HWND         hwnd ;
     MSG          msg ;
     WNDCLASS     wndclass ;
     
     wndclass.style         = CS_HREDRAW | CS_VREDRAW ;
     wndclass.lpfnWndProc   = WndProc ;
     wndclass.cbClsExtra    = 0 ;
     wndclass.cbWndExtra    = 0 ;
     wndclass.hInstance     = hInstance ;
     wndclass.hIcon         = LoadIcon (NULL, IDI_APPLICATION) ;
     wndclass.hCursor       = LoadCursor (NULL, IDC_ARROW) ;
     wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
     wndclass.lpszMenuName  = NULL ;
     wndclass.lpszClassName = szAppName ;
     
     if (!RegisterClass (&wndclass))
     {
          MessageBox (NULL, TEXT ("Program requires Windows NT!"), 
                      szAppName, MB_ICONERROR) ;
          return 0 ;
     }
     
    
     hwnd = CreateWindow (szAppName, TEXT ("PS_SOLID,PS_DASH,PS_DOT,PS_DASHDOT,PS_DASHDOTDOT"),
                          WS_OVERLAPPEDWINDOW,
                          CW_USEDEFAULT, CW_USEDEFAULT,
                          CW_USEDEFAULT, CW_USEDEFAULT,
                          NULL, NULL, hInstance, NULL) ;
     
     ShowWindow (hwnd, iCmdShow) ;
     UpdateWindow (hwnd) ;
     
     while (GetMessage (&msg, NULL, 0, 0))
     {
          TranslateMessage (&msg) ;
          DispatchMessage (&msg) ;
     }
     return msg.wParam ;
}

LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
   
	 HDC         hdc ;
     PAINTSTRUCT ps ;
     RECT        rect ;
     
     switch (message)
     {
           
     case WM_PAINT :
          hdc = BeginPaint (hwnd, &ps) ;
          
          GetClientRect (hwnd, &rect) ;
		  for (int i = 4; i >= 0; i--)
			{
			   GetClientRect (hwnd, &rect) ;
               rect.left   += rect.right / (4 + i);
               rect.right  -= rect.left ;
               rect.top    += rect.bottom / (4 + i);
               rect.bottom -= rect.top ;

               SelectObject (hdc, GetStockObject (NULL_BRUSH)) ;
			   /* Drawing from DashDotDot to Solid:
			   PS_SOLID: 0
			   PS_DASH: 1
			   PS_DOT: 2
			   PS_DASHDOT: 3
			   PS_DASHDOTDOT: 4
			   */
			   SelectObject (hdc, CreatePen (i, 0, 0)) ;
               Rectangle (hdc, rect.left, rect.top, rect.right, rect.bottom) ;
			 }
          DeleteObject (SelectObject (hdc, GetStockObject (BLACK_PEN))) ;
          EndPaint (hwnd, &ps) ;
          return 0 ;

     case WM_DESTROY :
          PostQuitMessage (0) ;
          return 0 ;
	 }
     return DefWindowProc (hwnd, message, wParam, lParam) ;
}