[PastePlain]Support Ctrl+V as activation (#24448)

src/modules/interface/powertoy_module_interface.h

@@ -125,6 +125,10 @@ public:
         return powertoys_gpo::gpo_rule_configured_not_configured;
     }
 
+    // Some actions like PastePlain generate new inputs, which we don't want to catch again.
+    // The flag was purposefully chose to not collide with other keyboard manager flags.
+    const static inline ULONG_PTR CENTRALIZED_KEYBOARD_HOOK_DONT_TRIGGER_FLAG = 0x110;
+
 protected:
     HANDLE CreateDefaultEvent(const wchar_t* eventName)
     {

src/modules/pasteplain/PastePlainModuleInterface/dllmain.cpp

@@ -311,6 +311,8 @@ private:
                 INPUT input_event = {};
                 input_event.type = INPUT_KEYBOARD;
                 input_event.ki.wVk = 0x56; // V
+                // Avoid triggering detection by the centralized keyboard hook. Allows using Control+V as activation.
+                input_event.ki.dwExtraInfo = CENTRALIZED_KEYBOARD_HOOK_DONT_TRIGGER_FLAG;
                 inputs.push_back(input_event);
             }
 
@@ -319,6 +321,8 @@ private:
                 input_event.type = INPUT_KEYBOARD;
                 input_event.ki.wVk = 0x56; // V
                 input_event.ki.dwFlags = KEYEVENTF_KEYUP;
+                // Avoid triggering detection by the centralized keyboard hook. Allows using Control+V as activation.
+                input_event.ki.dwExtraInfo = CENTRALIZED_KEYBOARD_HOOK_DONT_TRIGGER_FLAG;
                 inputs.push_back(input_event);
             }
 

src/runner/centralized_kb_hook.cpp

@@ -88,6 +88,12 @@ namespace CentralizedKeyboardHook
 
         const auto& keyPressInfo = *reinterpret_cast<KBDLLHOOKSTRUCT*>(lParam);
 
+        if (keyPressInfo.dwExtraInfo == PowertoyModuleIface::CENTRALIZED_KEYBOARD_HOOK_DONT_TRIGGER_FLAG)
+        {
+            // The new keystroke was generated from one of our actions. We should pass it along.
+            return CallNextHookEx(hHook, nCode, wParam, lParam);
+        }
+
         // Check if the keys are pressed.
         if (!pressedKeyDescriptors.empty())
         {