user: Prefer SendMessageW over SendMessageA where possible.

dlls/user/defdlg.c

@@ -159,15 +159,15 @@ static BOOL DEFDLG_SetDefId( HWND hwndDlg, DIALOGINFO *dlgInfo, WPARAM wParam)
 
     /* Make sure the old default control is a valid push button ID */
     hwndOld = GetDlgItem( hwndDlg, old_id );
-    if (!hwndOld || !(SendMessageA( hwndOld, WM_GETDLGCODE, 0, 0) & DLGC_DEFPUSHBUTTON))
+    if (!hwndOld || !(SendMessageW( hwndOld, WM_GETDLGCODE, 0, 0) & DLGC_DEFPUSHBUTTON))
         hwndOld = DEFDLG_FindDefButton( hwndDlg );
     if (hwndOld && hwndOld != hwndNew)
-        SendMessageA( hwndOld, BM_SETSTYLE, BS_PUSHBUTTON, TRUE );
+        SendMessageW( hwndOld, BM_SETSTYLE, BS_PUSHBUTTON, TRUE );
 
     if (hwndNew)
     {
         if(dlgcode & DLGC_UNDEFPUSHBUTTON)
-            SendMessageA( hwndNew, BM_SETSTYLE, BS_DEFPUSHBUTTON, TRUE );
+            SendMessageW( hwndNew, BM_SETSTYLE, BS_DEFPUSHBUTTON, TRUE );
     }
     return TRUE;
 }
@@ -197,15 +197,15 @@ static BOOL DEFDLG_SetDefButton( HWND hwndDlg, DIALOGINFO *dlgInfo, HWND hwndNew
     }
 
     /* Make sure the old default control is a valid push button ID */
-    if (!hwndOld || !(SendMessageA( hwndOld, WM_GETDLGCODE, 0, 0) & DLGC_DEFPUSHBUTTON))
+    if (!hwndOld || !(SendMessageW( hwndOld, WM_GETDLGCODE, 0, 0) & DLGC_DEFPUSHBUTTON))
         hwndOld = DEFDLG_FindDefButton( hwndDlg );
     if (hwndOld && hwndOld != hwndNew)
-        SendMessageA( hwndOld, BM_SETSTYLE, BS_PUSHBUTTON, TRUE );
+        SendMessageW( hwndOld, BM_SETSTYLE, BS_PUSHBUTTON, TRUE );
 
     if (hwndNew)
     {
         if(dlgcode & DLGC_UNDEFPUSHBUTTON)
-            SendMessageA( hwndNew, BM_SETSTYLE, BS_DEFPUSHBUTTON, TRUE );
+            SendMessageW( hwndNew, BM_SETSTYLE, BS_DEFPUSHBUTTON, TRUE );
     }
     return TRUE;
 }
@@ -300,8 +300,8 @@ static LRESULT DEFDLG_Proc( HWND hwnd, UINT msg, WPARAM wParam,
                 if (hwndFocus)
                 {
                     /* always make combo box hide its listbox control */
-                    if (!SendMessageA( hwndFocus, CB_SHOWDROPDOWN, FALSE, 0 ))
-                        SendMessageA( GetParent(hwndFocus), CB_SHOWDROPDOWN, FALSE, 0 );
+                    if (!SendMessageW( hwndFocus, CB_SHOWDROPDOWN, FALSE, 0 ))
+                        SendMessageW( GetParent(hwndFocus), CB_SHOWDROPDOWN, FALSE, 0 );
                 }
             }
             return DefWindowProcA( hwnd, msg, wParam, lParam );

dlls/user/icontitle.c

@@ -228,8 +228,8 @@ LRESULT WINAPI IconTitleWndProc( HWND hWnd, UINT msg,
             if (wParam) ICONTITLE_SetTitlePos( hWnd, owner );
 	     return 0;
 	case WM_ERASEBKGND:
-            if( GetWindowLongA( owner, GWL_STYLE ) & WS_CHILD )
-                lParam = SendMessageA( owner, WM_ISACTIVEICON, 0, 0 );
+            if( GetWindowLongW( owner, GWL_STYLE ) & WS_CHILD )
+                lParam = SendMessageW( owner, WM_ISACTIVEICON, 0, 0 );
             else
                 lParam = (owner == GetActiveWindow());
             if( ICONTITLE_Paint( hWnd, owner, (HDC)wParam, (BOOL)lParam ) )

dlls/user/mdi.c

@@ -671,7 +671,7 @@ static LONG MDICascade( HWND client, MDICLIENTINFO *ci )
     int i, total;
 
     if (IsZoomed(ci->hwndActiveChild))
-        SendMessageA(client, WM_MDIRESTORE, (WPARAM)ci->hwndActiveChild, 0);
+        SendMessageW(client, WM_MDIRESTORE, (WPARAM)ci->hwndActiveChild, 0);
 
     if (ci->nActiveChildren == 0) return 0;
 
@@ -724,7 +724,7 @@ static void MDITile( HWND client, MDICLIENTINFO *ci, WPARAM wParam )
     BOOL has_icons = FALSE;
 
     if (IsZoomed(ci->hwndActiveChild))
-        SendMessageA(client, WM_MDIRESTORE, (WPARAM)ci->hwndActiveChild, 0);
+        SendMessageW(client, WM_MDIRESTORE, (WPARAM)ci->hwndActiveChild, 0);
 
     if (ci->nActiveChildren == 0) return;
 

dlls/user/nonclient.c

@@ -1318,9 +1318,9 @@ static void NC_TrackMinMaxBox( HWND hwnd, WORD wParam )
         return;
 
     if (wParam == HTMINBUTTON)
-        SendMessageA( hwnd, WM_SYSCOMMAND, SC_MINIMIZE, MAKELONG(msg.pt.x,msg.pt.y) );
+        SendMessageW( hwnd, WM_SYSCOMMAND, SC_MINIMIZE, MAKELONG(msg.pt.x,msg.pt.y) );
     else
-        SendMessageA( hwnd, WM_SYSCOMMAND,
+        SendMessageW( hwnd, WM_SYSCOMMAND,
                       IsZoomed(hwnd) ? SC_RESTORE:SC_MAXIMIZE, MAKELONG(msg.pt.x,msg.pt.y) );
 }
 
@@ -1377,7 +1377,7 @@ static void NC_TrackCloseButton (HWND hwnd, WORD wParam)
     ReleaseDC( hwnd, hdc );
     if (!pressed) return;
 
-    SendMessageA( hwnd, WM_SYSCOMMAND, SC_CLOSE, MAKELONG(msg.pt.x,msg.pt.y) );
+    SendMessageW( hwnd, WM_SYSCOMMAND, SC_CLOSE, MAKELONG(msg.pt.x,msg.pt.y) );
 }
 
 
@@ -1573,7 +1573,7 @@ LRESULT NC_HandleSysCommand( HWND hwnd, WPARAM wParam, LPARAM lParam )
         break;
 
     case SC_CLOSE:
-        return SendMessageA( hwnd, WM_CLOSE, 0, 0 );
+        return SendMessageW( hwnd, WM_CLOSE, 0, 0 );
 
     case SC_VSCROLL:
     case SC_HSCROLL:

dlls/user/winpos.c

@@ -385,7 +385,7 @@ HWND WINPOS_WindowFromPoint( HWND hwndScope, POINT pt, INT *hittest )
             *hittest = HTCLIENT;
             break;
         }
-        res = SendMessageA( list[i], WM_NCHITTEST, 0, MAKELONG(pt.x,pt.y) );
+        res = SendMessageW( list[i], WM_NCHITTEST, 0, MAKELONG(pt.x,pt.y) );
         if (res != HTTRANSPARENT)
         {
             *hittest = res;  /* Found the window */
@@ -679,7 +679,7 @@ BOOL WINPOS_RedrawIconTitle( HWND hWnd )
     {
 	if( lpPos->hwndIconTitle )
 	{
-	    SendMessageA( lpPos->hwndIconTitle, WM_SHOWWINDOW, TRUE, 0);
+	    SendMessageW( lpPos->hwndIconTitle, WM_SHOWWINDOW, TRUE, 0);
 	    InvalidateRect( lpPos->hwndIconTitle, NULL, TRUE );
 	    return TRUE;
 	}
@@ -706,7 +706,7 @@ BOOL WINPOS_ShowIconTitle( HWND hwnd, BOOL bShow )
         {
             if (!IsWindowVisible(title))
             {
-                SendMessageA( title, WM_SHOWWINDOW, TRUE, 0 );
+                SendMessageW( title, WM_SHOWWINDOW, TRUE, 0 );
                 SetWindowPos( title, 0, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE |
                               SWP_NOACTIVATE | SWP_NOZORDER | SWP_SHOWWINDOW );
             }
@@ -795,7 +795,7 @@ void WINPOS_GetMinMaxInfo( HWND hwnd, POINT *maxSize, POINT *maxPos,
         MinMax.ptMaxPosition.y = -yinc;
     }
 
-    SendMessageA( hwnd, WM_GETMINMAXINFO, 0, (LPARAM)&MinMax );
+    SendMessageW( hwnd, WM_GETMINMAXINFO, 0, (LPARAM)&MinMax );
 
       /* Some sanity checks */