SDL android NDK managing return button -

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i using sdl-2.0.3 along ndk-r10e, i'm attempting make return button switch app background tried use function sdl_minimizewindow() nothing ! bug or miss ?

here code :

if(event.key.keysym.sym == sdlk_ac_back)     {             sdl_minimizewindow(window);              sdl_log("window minimized !\n");     }

everything work fine , log message when button pressed window not minimized

that doesn't appear supported on android (there's not corresponding minimizing "window" on android, unless count finishing activity).

the sdl_minimizewindow function looks this:

void sdl_minimizewindow(sdl_window * window) {     check_window_magic(window, );      if (window->flags & sdl_window_minimized) {         return;     }      sdl_updatefullscreenmode(window, sdl_false);      if (_this->minimizewindow) {         _this->minimizewindow(_this, window);     } }

where _this sdl_videodevice *, set point sdl_videodevice appropriate platform @ runtime. the android video driver sets following 3 window-related functions:

device->createwindow = android_createwindow; device->setwindowtitle = android_setwindowtitle; device->destroywindow = android_destroywindow;

trying perform other operations on sdl_window on android nothing.

some further information in form of couple of lines of code sdl_androidwindow.c:

window->flags &= ~sdl_window_resizable;     /* window never resizeable */ window->flags |= sdl_window_fullscreen;     /* window fullscreen */

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