SDL: Fixed Win+V handling (pasting from clipboard history) on Windows

From 98582dca02f99886e81081205afd7f6337e86ca4 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Wed, 24 Apr 2024 09:35:19 -0700
Subject: [PATCH] Fixed Win+V handling (pasting from clipboard history) on
 Windows

Fixes https://github.com/libsdl-org/SDL/issues/9613
---
 src/video/windows/SDL_windowsevents.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/src/video/windows/SDL_windowsevents.c b/src/video/windows/SDL_windowsevents.c
index 00ca0bb2e4402..1b594a85d5eb2 100644
--- a/src/video/windows/SDL_windowsevents.c
+++ b/src/video/windows/SDL_windowsevents.c
@@ -152,7 +152,7 @@ static Uint64 WIN_GetEventTimestamp()
     return timestamp;
 }
 
-static SDL_Scancode WindowsScanCodeToSDLScanCode(LPARAM lParam, WPARAM wParam)
+static SDL_Scancode WindowsScanCodeToSDLScanCode(LPARAM lParam, WPARAM wParam, SDL_bool *virtual_key)
 {
     SDL_Scancode code;
     Uint8 index;
@@ -163,6 +163,8 @@ static SDL_Scancode WindowsScanCodeToSDLScanCode(LPARAM lParam, WPARAM wParam)
      * Strip high-order bit. */
     scanCode &= ~0x80;
 
+    *virtual_key = (scanCode == 0);
+
     if (scanCode != 0) {
         if ((keyFlags & KF_EXTENDED) == KF_EXTENDED) {
             scanCode = MAKEWORD(scanCode, 0xe0);
@@ -1153,7 +1155,8 @@ LRESULT CALLBACK WIN_WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lPara
     case WM_KEYDOWN:
     case WM_SYSKEYDOWN:
     {
-        SDL_Scancode code = WindowsScanCodeToSDLScanCode(lParam, wParam);
+        SDL_bool virtual_key = SDL_FALSE;
+        SDL_Scancode code = WindowsScanCodeToSDLScanCode(lParam, wParam, &virtual_key);
         const Uint8 *keyboardState = SDL_GetKeyboardState(NULL);
 
         /* Detect relevant keyboard shortcuts */
@@ -1164,7 +1167,7 @@ LRESULT CALLBACK WIN_WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lPara
             }
         }
 
-        if (!data->videodata->raw_keyboard_enabled && code != SDL_SCANCODE_UNKNOWN) {
+        if ((virtual_key || !data->videodata->raw_keyboard_enabled) && code != SDL_SCANCODE_UNKNOWN) {
             SDL_SendKeyboardKey(WIN_GetEventTimestamp(), SDL_GLOBAL_KEYBOARD_ID, SDL_PRESSED, code);
         }
     }
@@ -1175,10 +1178,11 @@ LRESULT CALLBACK WIN_WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lPara
     case WM_SYSKEYUP:
     case WM_KEYUP:
     {
-        SDL_Scancode code = WindowsScanCodeToSDLScanCode(lParam, wParam);
+        SDL_bool virtual_key = SDL_FALSE;
+        SDL_Scancode code = WindowsScanCodeToSDLScanCode(lParam, wParam, &virtual_key);
         const Uint8 *keyboardState = SDL_GetKeyboardState(NULL);
 
-        if (!data->videodata->raw_keyboard_enabled && code != SDL_SCANCODE_UNKNOWN) {
+        if ((virtual_key || !data->videodata->raw_keyboard_enabled) && code != SDL_SCANCODE_UNKNOWN) {
             if (code == SDL_SCANCODE_PRINTSCREEN &&
                 keyboardState[code] == SDL_RELEASED) {
                 SDL_SendKeyboardKey(WIN_GetEventTimestamp(), SDL_GLOBAL_KEYBOARD_ID, SDL_PRESSED, code);