TestSDLRailWindowStyle.cpp

#include "../../SDL3/sdl_rail_window_style.hpp"
 
int TestSDLRailWindowStyle(int argc, char* argv[])
{
  (void)argc;
  (void)argv;
 
  /* Reproducer: WS_POPUP | WS_SYSMENU | WS_MINIMIZEBOX, unowned tool window. */
  const auto autocomplete = classifySdlRailWindowStyle(WS_POPUP | WS_SYSMENU | WS_MINIMIZEBOX,
                                                       WS_EX_TOOLWINDOW | WS_EX_TOPMOST, false);
  if (!autocomplete.popup)
    return 1;
 
  /* A captioned popup remains an ordinary dialog, even when it has an owner. */
  const auto dialog = classifySdlRailWindowStyle(WS_POPUP | WS_CAPTION | WS_SYSMENU,
                                                 WS_EX_TOOLWINDOW | WS_EX_LAYERED, true);
  if (dialog.popup || dialog.layered)
    return 2;
 
  /* The same caption-less style remains a toplevel when owned, preserving custom drag loops. */
  const auto ownedStyledPopup = classifySdlRailWindowStyle(
      WS_POPUP | WS_SYSMENU | WS_MINIMIZEBOX, WS_EX_TOOLWINDOW | WS_EX_TOPMOST, true);
  if (ownedStyledPopup.popup)
    return 3;
 
  /* Preserve the existing owned tool-window path used by application-driven drag loops. */
  const auto ownedTool = classifySdlRailWindowStyle(WS_POPUP, WS_EX_TOOLWINDOW, true);
  if (!ownedTool.popup)
    return 4;
 
  /* WS_EX_NOACTIVATE remains sufficient even when the window is not a WS_POPUP. */
  const auto noActivate = classifySdlRailWindowStyle(WS_OVERLAPPED, WS_EX_NOACTIVATE, true);
  if (!noActivate.popup)
    return 5;
 
  return 0;
}