Added process_pending_events() in the tk::Display class for handling pending events at the main loop start and at the main loop end.

Author: sadko4u

CHANGELOG

@@ -3,7 +3,8 @@
 *******************************************************************************
 
 === 1.0.34 ===
-
+* Added process_pending_events() in the tk::Display class for handling pending
+  events at the main loop start and at the main loop end.
 
 === 1.0.33 ===
 * Fixed widget redrawing atrifacts for some use cases.

include/lsp-plug.in/tk/sys/Display.h

@@ -1,6 +1,6 @@
 /*
- * Copyright (C) 2025 Linux Studio Plugins Project <https://lsp-plug.in/>
- *           (C) 2025 Vladimir Sadovnikov <sadko4u@gmail.com>
+ * Copyright (C) 2026 Linux Studio Plugins Project <https://lsp-plug.in/>
+ *           (C) 2026 Vladimir Sadovnikov <sadko4u@gmail.com>
  *
  * This file is part of lsp-tk-lib
  * Created on: 19 июн. 2017 г.
@@ -126,6 +126,12 @@ namespace lsp
                  */
                 status_t main();
 
+                /**
+                 * Process pending events if there are any
+                 * @return status of operation
+                 */
+                status_t process_pending_events();
+
                 /** Execute one main loop iteration
                  *
                  * @return status of operation

src/main/sys/Display.cpp

@@ -1,6 +1,6 @@
 /*
- * Copyright (C) 2025 Linux Studio Plugins Project <https://lsp-plug.in/>
- *           (C) 2025 Vladimir Sadovnikov <sadko4u@gmail.com>
+ * Copyright (C) 2026 Linux Studio Plugins Project <https://lsp-plug.in/>
+ *           (C) 2026 Vladimir Sadovnikov <sadko4u@gmail.com>
  *
  * This file is part of lsp-tk-lib
  * Created on: 19 июн. 2017 г.
@@ -278,16 +278,28 @@ namespace lsp
             return (pDisplay != NULL) ? pDisplay->wait_events(millis) : STATUS_BAD_STATE;
         }
 
-        status_t Display::main_iteration()
+        status_t Display::process_pending_events()
         {
             if (pDisplay == NULL)
                 return STATUS_BAD_STATE;
+
             if (!sLock.lock())
                 return STATUS_UNKNOWN_ERR;
-            status_t res = pDisplay->main_iteration();
-            if (!sLock.unlock())
+            lsp_finally { sLock.unlock(); };
+
+            return pDisplay->process_pending_events();
+        }
+
+        status_t Display::main_iteration()
+        {
+            if (pDisplay == NULL)
+                return STATUS_BAD_STATE;
+
+            if (!sLock.lock())
                 return STATUS_UNKNOWN_ERR;
-            return res;
+            lsp_finally { sLock.unlock(); };
+
+            return pDisplay->main_iteration();
         }
 
         void Display::quit_main()