user32: Do not cast zero.

dlls/user32/cursoricon.c

@@ -1667,7 +1667,7 @@ HGLOBAL16 WINAPI LoadCursorIconHandler16( HGLOBAL16 hResource, HMODULE16 hModule
 {
     FIXME_(cursor)("(%04x,%04x,%04x): old 2.x resources are not supported!\n",
           hResource, hModule, hRsrc);
-    return (HGLOBAL16)0;
+    return 0;
 }
 
 /**********************************************************************

dlls/user32/driver16.c

@@ -434,7 +434,7 @@ HDRVR16 WINAPI GetNextDriver16(HDRVR16 hDrvr, DWORD dwFlags)
 	}
     }
 
-    hRetDrv = (lpDrv) ? lpDrv->hDriver16 : (HDRVR16)0;
+    hRetDrv = (lpDrv) ? lpDrv->hDriver16 : 0;
     TRACE("return %04x !\n", hRetDrv);
     return hRetDrv;
 }

dlls/user32/resource.c

@@ -396,10 +396,10 @@ INT WINAPI LoadStringW( HINSTANCE instance, UINT resource_id,
     i = min(buflen - 1, *p);
     if (i > 0) {
 	memcpy(buffer, p + 1, i * sizeof (WCHAR));
-	buffer[i] = (WCHAR) 0;
+        buffer[i] = 0;
     } else {
 	if (buflen > 1) {
-	    buffer[0] = (WCHAR) 0;
+            buffer[0] = 0;
 	    return 0;
 	}
     }

dlls/user32/scroll.c

@@ -918,8 +918,7 @@ static void SCROLL_HandleScrollEvent( HWND hwnd, INT nBar, UINT msg, POINT pt)
 	    }
 
 	    SetSystemTimer( hwnd, SCROLL_TIMER, (msg == WM_LBUTTONDOWN) ?
-			    SCROLL_FIRST_DELAY : SCROLL_REPEAT_DELAY,
-			    (TIMERPROC)0 );
+                            SCROLL_FIRST_DELAY : SCROLL_REPEAT_DELAY, NULL );
         }
         else KillSystemTimer( hwnd, SCROLL_TIMER );
         break;
@@ -936,8 +935,7 @@ static void SCROLL_HandleScrollEvent( HWND hwnd, INT nBar, UINT msg, POINT pt)
                                 SB_PAGEUP, (LPARAM)hwndCtl );
             }
             SetSystemTimer( hwnd, SCROLL_TIMER, (msg == WM_LBUTTONDOWN) ?
-                              SCROLL_FIRST_DELAY : SCROLL_REPEAT_DELAY,
-                              (TIMERPROC)0 );
+                              SCROLL_FIRST_DELAY : SCROLL_REPEAT_DELAY, NULL );
         }
         else KillSystemTimer( hwnd, SCROLL_TIMER );
         break;
@@ -1005,8 +1003,7 @@ static void SCROLL_HandleScrollEvent( HWND hwnd, INT nBar, UINT msg, POINT pt)
                                 SB_PAGEDOWN, (LPARAM)hwndCtl );
             }
             SetSystemTimer( hwnd, SCROLL_TIMER, (msg == WM_LBUTTONDOWN) ?
-                              SCROLL_FIRST_DELAY : SCROLL_REPEAT_DELAY,
-                              (TIMERPROC)0 );
+                              SCROLL_FIRST_DELAY : SCROLL_REPEAT_DELAY, NULL );
         }
         else KillSystemTimer( hwnd, SCROLL_TIMER );
         break;
@@ -1023,8 +1020,7 @@ static void SCROLL_HandleScrollEvent( HWND hwnd, INT nBar, UINT msg, POINT pt)
 	    }
 
 	    SetSystemTimer( hwnd, SCROLL_TIMER, (msg == WM_LBUTTONDOWN) ?
-			    SCROLL_FIRST_DELAY : SCROLL_REPEAT_DELAY,
-			    (TIMERPROC)0 );
+                            SCROLL_FIRST_DELAY : SCROLL_REPEAT_DELAY, NULL );
         }
         else KillSystemTimer( hwnd, SCROLL_TIMER );
         break;
@@ -1791,7 +1787,7 @@ BOOL WINAPI GetScrollInfo(HWND hwnd, INT nBar, LPSCROLLINFO info)
     /* Refer SB_CTL requests to the window */
     if (nBar == SB_CTL)
     {
-        SendMessageW(hwnd, SBM_GETSCROLLINFO, (WPARAM)0, (LPARAM)info);
+        SendMessageW(hwnd, SBM_GETSCROLLINFO, 0, (LPARAM)info);
         return TRUE;
     }
     return SCROLL_GetScrollInfo(hwnd, nBar, info);
@@ -1818,7 +1814,7 @@ BOOL WINAPI GetScrollBarInfo(HWND hwnd, LONG idObject, LPSCROLLBARINFO info)
 
     /* Refer OBJID_CLIENT requests to the window */
     if (idObject == OBJID_CLIENT)
-        return SendMessageW(hwnd, SBM_GETSCROLLBARINFO, (WPARAM)0, (LPARAM)info);
+        return SendMessageW(hwnd, SBM_GETSCROLLBARINFO, 0, (LPARAM)info);
     else
         return SCROLL_GetScrollBarInfo(hwnd, idObject, info);
 }
@@ -1882,7 +1878,7 @@ INT WINAPI GetScrollPos(HWND hwnd, INT nBar)
 
     /* Refer SB_CTL requests to the window */
     if (nBar == SB_CTL)
-        return SendMessageW(hwnd, SBM_GETPOS, (WPARAM)0, (LPARAM)0);
+        return SendMessageW(hwnd, SBM_GETPOS, 0, 0);
     else
         return SCROLL_GetScrollPos(hwnd, nBar);
 }

dlls/user32/tests/listbox.c

@@ -103,8 +103,8 @@ buttonpress (HWND handle, WORD x, WORD y)
   LPARAM lp=x+(y<<16);
 
   WAIT;
-  SendMessage (handle, WM_LBUTTONDOWN, (WPARAM) MK_LBUTTON, lp);
-  SendMessage (handle, WM_LBUTTONUP  , (WPARAM) 0         , lp);
+  SendMessage (handle, WM_LBUTTONDOWN, MK_LBUTTON, lp);
+  SendMessage (handle, WM_LBUTTONUP, 0, lp);
   REDRAW;
 }
 

dlls/user32/win.c

@@ -3144,7 +3144,7 @@ BOOL WINAPI FlashWindow( HWND hWnd, BOOL bInvert )
         else wparam = (hWnd == GetForegroundWindow());
 
         WIN_ReleasePtr( wndPtr );
-        SendMessageW( hWnd, WM_NCACTIVATE, wparam, (LPARAM)0 );
+        SendMessageW( hWnd, WM_NCACTIVATE, wparam, 0 );
         return wparam;
     }
 }