[reactos] 01/01: [TASKMGR] Avoid hangs as much as possible (#4166)

[Katayama Hirofumi MZ]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=545e1190f2caf714ff897…
commit 545e1190f2caf714ff897d909645adc04178e3a6
Author:     Katayama Hirofumi MZ <katayama.hirofumi.mz(a)gmail.com>
AuthorDate: Thu Dec 16 09:57:40 2021 +0900
Commit:     GitHub <noreply(a)github.com>
CommitDate: Thu Dec 16 09:57:40 2021 +0900
    [TASKMGR] Avoid hangs as much as possible (#4166)
    - Use ShowWindowAsync instead of ShowWindow.
    - Use SwitchToThisWindow directly.
    CORE-17894
---
 base/applications/taskmgr/applpage.c | 32 ++++++--------------------------
 1 file changed, 6 insertions(+), 26 deletions(-)
diff --git a/base/applications/taskmgr/applpage.c b/base/applications/taskmgr/applpage.c
index cf4c063f434..f3ad41c891a 100644
--- a/base/applications/taskmgr/applpage.c
+++ b/base/applications/taskmgr/applpage.c
@@ -5,6 +5,7 @@
  *
  *  Copyright (C) 1999 - 2001  Brian Palmer  <brianp(a)reactos.org>
  *                2005         Klemens Friedl <frik85(a)reactos.at>
+ *                2021 Katayama Hirofumi MZ <katayama.hirofumi.mz(a)gmail.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -57,13 +58,6 @@ static HANDLE   hApplicationThread = NULL;
 static DWORD    dwApplicationThread;
 #endif
-#if 0
-void SwitchToThisWindow (
-HWND hWnd,   /* Handle to the window that should be activated */
-BOOL bRestore /* Restore the window if it is minimized */
-);
-#endif
-
 static INT
 GetSystemColorDepth(VOID)
 {
@@ -785,7 +779,7 @@ void ApplicationPage_OnWindowsMinimize(void)
         if (item.state & LVIS_SELECTED) {
             pAPLI = (LPAPPLICATION_PAGE_LIST_ITEM)item.lParam;
             if (pAPLI) {
-                ShowWindow(pAPLI->hWnd, SW_MINIMIZE);
+                ShowWindowAsync(pAPLI->hWnd, SW_MINIMIZE);
             }
         }
     }
@@ -806,7 +800,7 @@ void ApplicationPage_OnWindowsMaximize(void)
         if (item.state & LVIS_SELECTED) {
             pAPLI = (LPAPPLICATION_PAGE_LIST_ITEM)item.lParam;
             if (pAPLI) {
-                ShowWindow(pAPLI->hWnd, SW_MAXIMIZE);
+                ShowWindowAsync(pAPLI->hWnd, SW_MAXIMIZE);
             }
         }
     }
@@ -859,9 +853,7 @@ void ApplicationPage_OnWindowsBringToFront(void)
         }
     }
     if (pAPLI) {
-        if (IsIconic(pAPLI->hWnd))
-            ShowWindow(pAPLI->hWnd, SW_RESTORE);
-        BringWindowToTop(pAPLI->hWnd);
+        SwitchToThisWindow(pAPLI->hWnd, TRUE);
     }
 }
@@ -884,21 +876,9 @@ void ApplicationPage_OnSwitchTo(void)
         }
     }
     if (pAPLI) {
-        typedef void (WINAPI *PROCSWITCHTOTHISWINDOW) (HWND, BOOL);
-        PROCSWITCHTOTHISWINDOW SwitchToThisWindow;
-
-        HMODULE hUser32 = GetModuleHandleW(L"USER32");
-        SwitchToThisWindow = (PROCSWITCHTOTHISWINDOW)GetProcAddress(hUser32,
"SwitchToThisWindow");
-        if (SwitchToThisWindow) {
-            SwitchToThisWindow(pAPLI->hWnd, TRUE);
-        } else {
-            if (IsIconic(pAPLI->hWnd))
-                ShowWindow(pAPLI->hWnd, SW_RESTORE);
-            BringWindowToTop(pAPLI->hWnd);
-            SetForegroundWindow(pAPLI->hWnd);
-        }
+        SwitchToThisWindow(pAPLI->hWnd, TRUE);
         if (TaskManagerSettings.MinimizeOnUse)
-            ShowWindow(hMainWnd, SW_MINIMIZE);
+            ShowWindowAsync(hMainWnd, SW_MINIMIZE);
     }
 }