more logging for closing tabs / windows

tracking down a crash where tab dragging messages are processed after
closing the window, leading to a crash

Author: kjk

src/SumatraPDF.cpp

@@ -2669,6 +2669,8 @@ void CloseTab(WindowTab* tab, bool quitIfLast) {
         return;
     }
     MainWindow* win = tab->win;
+    logf("CloseTab: tab: 0x%p win: 0x%p, hwndFrame: 0x%x, quitIfLast: %d\n", tab, win, win->hwndFrame, (int)quitIfLast);
+
     AbortFinding(win, true);
     ClearFindBox(win);
     RemoveNotificationsForGroup(win->hwndCanvas, kNotifPageInfo);
@@ -2717,6 +2719,8 @@ void CloseTab(WindowTab* tab, bool quitIfLast) {
 // are other windows, else the Frequently Read page is displayed
 void CloseCurrentTab(MainWindow* win, bool quitIfLast) {
     WindowTab* tab = win->CurrentTab();
+    logf("CloseCurrentTab: tab: 0x%p win: 0x%p, hwndFrame: 0x%x, quitIfLast: %d\n", tab, win, win->hwndFrame,
+         (int)quitIfLast);
     if (tab) {
         CloseTab(tab, quitIfLast);
     } else {
@@ -2755,7 +2759,8 @@ void CloseWindow(MainWindow* win, bool quitIfLast, bool forceClose) {
     if (!win) {
         return;
     }
-
+    logf("CloseWindow: win: 0x%p, hwndFrame: 0x%x, quitIfLast: %d, forceClose: %d\n", win, win->hwndFrame,
+         (int)quitIfLast, (int)forceClose);
     ReportIf(forceClose && !quitIfLast);
     if (forceClose) {
         quitIfLast = true;