MSDN is wrong: WM_NCACTIVATE takes the same lParam as WM_ACTIVATE.

525ac679 · Dmitry Timoshkov · Alexandre Julliard · 710bd6fb · 525ac679
Commit 525ac679 authored Jan 27, 2004 by Dmitry Timoshkov Committed by Alexandre Julliard Jan 27, 2004
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focus.c dlls/user/focus.c +2 -2

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--- a/dlls/user/focus.c
+++ b/dlls/user/focus.c
@@ -94,7 +94,7 @@ static BOOL set_active_window( HWND hwnd, HWND *prev, BOOL mouse, BOOL focus )

    if (IsWindow(previous))
    {
-        SendMessageW( previous, WM_NCACTIVATE, FALSE, 0 );
+        SendMessageW( previous, WM_NCACTIVATE, FALSE, (LPARAM)hwnd );
        SendMessageW( previous, WM_ACTIVATE,
                      MAKEWPARAM( WA_INACTIVE, IsIconic(previous) ), (LPARAM)hwnd );
    }
@@ -153,7 +153,7 @@ static BOOL set_active_window( HWND hwnd, HWND *prev, BOOL mouse, BOOL focus )

    if (IsWindow(hwnd))
    {
-        SendMessageW( hwnd, WM_NCACTIVATE, (hwnd == GetForegroundWindow()), 0 );
+        SendMessageW( hwnd, WM_NCACTIVATE, (hwnd == GetForegroundWindow()), (LPARAM)previous );
        SendMessageW( hwnd, WM_ACTIVATE,
                      MAKEWPARAM( mouse ? WA_CLICKACTIVE : WA_ACTIVE, IsIconic(hwnd) ),
                      (LPARAM)previous );