/*------------------------------------------------------------
   ScrollBarsVertWsExLeft.C -- Displays "Hello, Windows 98!" in client area
                 (c) Charles Petzold, 1998
  ------------------------------------------------------------*/

#include <windows.h>

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

HWND CreateAHorizontalScrollBar(HINSTANCE hInstance,HWND hwndParent, int sbHeight)
{
    RECT rect;

    // Get the dimensions of the parent window's client area;
    if (!GetClientRect(hwndParent, &rect))
        return NULL;

    // Create the scroll bar.
    return (CreateWindowEx( 
            0,                      // no extended styles 
            L"SCROLLBAR",           // scroll bar control class 
            (PTSTR) NULL,           // no window text 
            WS_CHILD | WS_VISIBLE   // window styles  
                | SBS_HORZ,         // horizontal scroll bar style 
            rect.left,              // horizontal position 
            rect.bottom - sbHeight, // vertical position 
            rect.right,             // width of the scroll bar 
            sbHeight,               // height of the scroll bar
            hwndParent,             // handle to main window 
            NULL,           // no menu 
            hInstance,                // instance owning this window 
            NULL            // pointer not needed 
        )); 
}




int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
                    PSTR szCmdLine, int iCmdShow)
{
     static TCHAR szClassName[] = TEXT ("HelloWin") ;
     HWND         hwnd ;
	 HWND         hwnd2 ;


     MSG          msg ;
     WNDCLASS     wndclass ;
	 INT sbHeight = 20;

	//First Window.
     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 = szClassName ;

	

     if (!RegisterClass (&wndclass))
     {
          MessageBox (NULL, TEXT ("This program requires Windows NT!"), 
                      szClassName, MB_ICONERROR) ;
          return 0 ;
     }

     //Creating first windows based on First class
	 hwnd = CreateWindowEx (0,
						  szClassName,                  // window class name
                          TEXT ("ParentWindow with child window:SBS_HORZ"), // window caption
                          WS_OVERLAPPEDWINDOW,        // window style
                          CW_USEDEFAULT,              // initial x position
                          CW_USEDEFAULT,              // initial y position
                          CW_USEDEFAULT,              // initial x size
                          CW_USEDEFAULT,              // initial y size
                          NULL,                       // parent window handle
                          NULL,                       // window menu handle
                          hInstance,                  // program instance handle
                          NULL) ;                     // creation parameters

     hwnd2 = CreateAHorizontalScrollBar(hInstance,hwnd, sbHeight);

	 ShowWindow (hwnd, iCmdShow) ;
	 ShowWindow (hwnd2, iCmdShow) ;


	 UpdateWindow (hwnd) ;
	 UpdateWindow (hwnd2) ;


     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) ;
          
          DrawText (hdc, TEXT ("Hello, Windows 98!"), -1, &rect,
                    DT_SINGLELINE | DT_CENTER | DT_VCENTER) ;
          EndPaint (hwnd, &ps) ;
          return 0 ;
          
     case WM_DESTROY:
		  //CloseWindow(hwnd); //Just closes the Window from hwnd handle.
          PostQuitMessage (0) ; //This CLOSES all the App windows. Bye Bye.
          return 0 ;
     }
     return DefWindowProc (hwnd, message, wParam, lParam) ;
}