1| // native_bridge/src/gui_probe.cpp — standalone VST3 GUI attach probe.
    2| // Debug tool (NOT shipped with the DAW): loads a VST3 with Vst3Instrument and
    3| // tests openGUI under different thread/pump/parent-window setups so we can
    4| // find why view->attached() hangs inside the bridge.
    5| #include "Vst3Instrument.h"
    6| 
    7| #ifdef _WIN32
    8| #include <windows.h>
    9| #include <imm.h>
   10| #endif
   11| #include <atomic>
   12| #include <chrono>
   13| #include <condition_variable>
   14| #include <cstdio>
   15| #include <cstdlib>
   16| #include <deque>
   17| #include <functional>
   18| #include <mutex>
   19| #include <string>
   20| #include <thread>
   21| #include <exception>
   22| 
   23| #ifdef _WIN32
   24| static void probe_invalid_param(const wchar_t* expr, const wchar_t* func, const wchar_t* file,
   25|                                 unsigned int line, uintptr_t reserved) {
   26|     printf("[probe] INVALID_PARAMETER expr=%ls func=%ls\n", expr ? expr : L"null", func ? func : L"null");
   27|     fflush(stdout);
   28| }
   29| #endif
   30| 
   31| static void disable_ime_contexts(HWND w) {
   32|     if (w && IsWindow(w)) {
   33|         ImmAssociateContext(w, nullptr);
   34|         for (HWND c = GetWindow(w, GW_CHILD); c; c = GetWindow(c, GW_HWNDNEXT))
   35|             ImmAssociateContext(c, nullptr);
   36|     }
   37| }
   38| 
   39| static void pump_for(int secs) {
   40| #ifdef _WIN32