fix(cliprdr-native): handle WM_ACTIVATEAPP in clipboard_subproc (#…

…657)

This PR adds handling of `WM_ACTIVATEAPP` in `clipboard_subproc`.
Previously, the function handled only `WM_ACTIVATE`.

crates/ironrdp-cliprdr-native/src/windows/clipboard_impl.rs

@@ -9,7 +9,7 @@ use windows::Win32::Foundation::{HWND, LPARAM, LRESULT, WPARAM};
 use windows::Win32::System::DataExchange::GetClipboardOwner;
 use windows::Win32::UI::Shell::DefSubclassProc;
 use windows::Win32::UI::WindowsAndMessaging::{
-    KillTimer, SetTimer, WA_INACTIVE, WM_ACTIVATE, WM_CLIPBOARDUPDATE, WM_DESTROY, WM_RENDERALLFORMATS,
+    KillTimer, SetTimer, WA_INACTIVE, WM_ACTIVATE, WM_ACTIVATEAPP, WM_CLIPBOARDUPDATE, WM_DESTROY, WM_RENDERALLFORMATS,
     WM_RENDERFORMAT, WM_TIMER,
 };
 
@@ -328,7 +328,7 @@ pub(crate) unsafe extern "system" fn clipboard_subproc(
 
     match msg {
         // We need to keep track of window state to distinguish between local and remote copy
-        WM_ACTIVATE => ctx.window_is_active = wparam.0 != WA_INACTIVE as usize, // `as` conversion is fine for constants
+        WM_ACTIVATE | WM_ACTIVATEAPP => ctx.window_is_active = wparam.0 != WA_INACTIVE as usize, // `as` conversion is fine for constants
         // Sent by the OS when OS clipboard content is changed
         WM_CLIPBOARDUPDATE => {
             // SAFETY: `GetClipboardOwner` is always safe to call.