一个简单的API问题,分数不要白不要!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Question

#include <windows.h>      
#define DIVISIONS 5
LRESULT CALLBACK WndProc   (HWND, UINT, WPARAM, LPARAM) ;      
LRESULT CALLBACK ChildWndProc (HWND, UINT, WPARAM, LPARAM) ;       
int   idFocus = 0 ;
TCHAR szChildClass[] = TEXT ("Checker4_Child") ;
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow)        
{
           static TCHAR szAppName[] = TEXT ("Checker4") ;     
           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 ;
        
           }
           wndclass.lpfnWndProc                                 = ChildWndProc ;
        
           wndclass.cbWndExtra                                  = sizeof (long) ;
        
           wndclass.hIcon                                       = NULL ;
        
           wndclass.lpszClassName                       = szChildClass ;
           RegisterClass (&wndclass) ;
        
           hwnd = CreateWindow (szAppName, TEXT ("Checker4 Mouse Hit-Test Demo"),
        
                       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)
        
{
        
    static HWND   hwndChild[DIVISIONS][DIVISIONS] ;
        
           int                           cxBlock, cyBlock, x, y ;
        
   
        
           switch (message)
        
           {
        
           case WM_CREATE :
        
                  for (x = 0 ; x < DIVISIONS ; x++)
        
                                         for (y = 0 ; y < DIVISIONS ; y++)
        
             hwndChild[x][y] = CreateWindow (szChildClass, NULL,
        
                       WS_CHILDWINDOW | WS_VISIBLE,
        
                         0, 0, 0, 0,
        
                        hwnd, (HMENU) (y << 8 | x),
        
                         HINSTANCE ) GetWindowLong (hwnd, GWL_HINSTANCE),
        
                                                 NULL) ;        
                  return 0 ;
        
           case   WM_SIZE :
        
                  cxBlock = LOWORD (lParam) / DIVISIONS ;
        
                  cyBlock = HIWORD (lParam) / DIVISIONS ;
        
        
        
                  for (x = 0 ; x < DIVISIONS ; x++)
        
                                         for (y = 0 ; y < DIVISIONS ; y++)
        
                          MoveWindow (  hwndChild[x][y],
        
                            x * cxBlock, y * cyBlock,
        
                               cxBlock, cyBlock, TRUE) ;
        
                  return 0 ;
        
                     
        
           case   WM_LBUTTONDOWN :
        
                 MessageBeep (0) ;
        
                  return 0 ;
                          // On set-focus message, set focus to child window
        
           case   WM_SETFOCUS:
        
                  SetFocus (GetDlgItem (hwnd, idFocus)) ;
        
                  return 0 ;
                    // On key-down message, possibly change the focus window
                   case   WM_KEYDOWN:
        
                  x = idFocus & 0xFF ;
        
                  y = idFocus >> 8 ;
                          switch (wParam)
        
                  {
        
       case VK_UP:            y-- ;                                                break ;
        
            case VK_DOWN:                 y++ ;                                            break ;
        
            case VK_LEFT:                 x-- ;                                    break ;
        
       case VK_RIGHT:                x++ ;                       break ;
        
       case VK_HOME:                     x = y = 0 ;                          break ;
        
       case VK_END:                      x = y = DIVISIONS - 1 ;          break ;
        
                  default:                                     return 0 ;
        
                  }
                          x = (x + DIVISIONS) % DIVISIONS ;
        
                  y = (y + DIVISIONS) % DIVISIONS ;
                          idFocus = y << 8 | x ;
                          SetFocus (GetDlgItem (hwnd, idFocus)) ;
        
                  return 0 ;
                   case   WM_DESTROY :
        
                 PostQuitMessage (0) ;
        
                  return 0 ;
        
           }
        
           return DefWindowProc (hwnd, message, wParam, lParam) ;
        
}
        LRESULT CALLBACK ChildWndProc (HWND hwnd, UINT message,
        
                 WPARAM wParam, LPARAM lParam)
        
{
        
           HDC                                         hdc ;
        
           PAINTSTRUCT                          ps ;
        
           RECT                                         rect ;
        
   
        
   switch (message)
        
    {
        
           case   WM_CREATE :
        
                  SetWindowLong (hwnd, 0, 0) ;       // on/off flag
        
                  return 0 ;
                   case   WM_KEYDOWN:
        
                                  // Send most key presses to the parent window
        
        
        
                  if (wParam != VK_RETURN && wParam != VK_SPACE)
        
                  {
        
                          SendMessage (GetParent (hwnd), message, wParam, lParam) ;
        
                          return 0 ;
        
                  }
        
                                 // For Return and Space, fall through to toggle the square
        

Answer 1

        
           case   WM_LBUTTONDOWN :
        
                  SetWindowLong (hwnd, 0, 1 ^ GetWindowLong (hwnd, 0)) ;
        
                  SetFocus (hwnd) ;
        
                  InvalidateRect (hwnd, NULL, FALSE) ;
        
                return 0 ;
                          // For focus messages, invalidate the window for repaint
        
        
        
           case   WM_SETFOCUS:
        
                  idFocus = GetWindowLong (hwnd, GWL_ID) ;
                          // Fall through
                   case   WM_KILLFOCUS:
        
                  InvalidateRect (hwnd, NULL, TRUE) ;
        
                  return 0 ;
        
        
        
       case      WM_PAINT :
        
                  hdc = BeginPaint (hwnd, &ps) ;
        
        
        
                  GetClientRect (hwnd, &rect) ;
        
                  Rectangle (hdc, 0, 0, rect.right, rect.bottom) ;
                                         // Draw the "x" 
        
        
        
                 if (GetWindowLong (hwnd, 0))
        
                  {
        
                                  MoveToEx (hdc, 0,          0, NULL) ;
        
                                  LineTo   (hdc, rect.right, rect.bottom) ;
        
                                  MoveToEx (hdc, 0,         rect.bottom, NULL) ;
        
                                  LineTo   (hdc, rect.right, 0) ;
        
                  }
        
                                  // Draw the "focus" rectangle
        
        
        
                  if (hwnd == GetFocus ())
        
                  {
        
                                  rect.left   += rect.right / 10 ;
        
                                 rect.right  -= rect.left ;
        
                                  rect.top    += rect.bottom / 10 ;
        
                                  rect.bottom -= rect.top ;
                                          SelectObject (hdc, GetStockObject (NULL_BRUSH)) ;
        
                                  SelectObject (hdc, CreatePen (PS_DASH, 0, 0)) ;
        
                                  Rectangle (hdc, rect.left, rect.top, rect.right, rect.bottom) ;
        
                                  DeleteObject (SelectObject (hdc, GetStockObject (BLACK_PEN))) ;
        
                  }
                          EndPaint (hwnd, &ps) ;
        
                  return 0 ;
        
           }
        
           return DefWindowProc (hwnd, message, wParam, lParam) ;
        
}
        
编译有错，错在哪里???

Answer 2

WndProc 的
case WM_CREATE :
消息下的  hwndChild[x][y] = CreateWindow (szChildClass, NULL,
        
                       WS_CHILDWINDOW | WS_VISIBLE,
        
                         0, 0, 0, 0,
        
                        hwnd, (HMENU) (y << 8 | x),
        
                         HINSTANCE ) GetWindowLong (hwnd, GWL_HINSTANCE),  // 错误在这改成（HINSTANCE )   你差个括号
        
                                                 NULL) ;   你不厚道哟，这都找不出来     

Answer 3

这 我编译出来了，这个是WINDOWS PROGRAMMING 的例子吗，好象那书有原代码~

Answer 4

HINSTANCE ) 改成这样 (HINSTANCE)  这应该可以懂了你差个括号