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al_set_new...play_flags(3) Library Functions Manual al_set_new...play_flags(3) NAME al_set_new_display_flags - Allegro 5 API SYNOPSIS #include <allegro5/allegro.h> void al_set_new_display_flags(int flags) DESCRIPTION Sets various flags to be used when creating new displays on the calling thread. flags is a bitfield containing any reasonable combination of the following: ALLEGRO_WINDOWED Prefer a windowed mode. Under multi-head X (not XRandR/TwinView), the use of more than one adapter is impossible due to bugs in X and GLX. al_cre- ate_display(3) will fail if more than one adapter is attempted to be used. ALLEGRO_FULLSCREEN_WINDOW Make the window span the entire screen. Unlike ALLE- GRO_FULLSCREEN this will never attempt to modify the screen res- olution. Instead the pixel dimensions of the created display will be the same as the desktop. The passed width and height are only used if the window is switched out of fullscreen mode later but will be ignored ini- tially. Under Windows and X11 a fullscreen display created with this flag will behave differently from one created with the ALLE- GRO_FULLSCREEN flag - even if the ALLEGRO_FULLSCREEN display is passed the desktop dimensions. The exact difference is platform dependent, but some things which may be different is how alt-tab works, how fast you can toggle between fullscreen/windowed mode or how additional monitors behave while your display is in fullscreen mode. Additionally under X, the use of more than one adapter in multi-head mode or with true Xinerama enabled is impossible due to bugs in X/GLX, creation will fail if more than one adapter is attempted to be used. ALLEGRO_FULLSCREEN Prefer a fullscreen mode. Under X the use of more than one FULLSCREEN display when using multi-head X, or true Xinerama is not possible due to bugs in X and GLX, display creation will fail if more than one adapter is attempted to be used. Note: Prefer using ALLEGRO_FULLSCREEN_WINDOW as it typi- cally provides a better user experience as the monitor doesn't change resolution and switching away from your game via Alt-Tab works smoothly. ALLEGRO_FULLSCREEN is typically less well supported compared to ALLE- GRO_FULLSCREEN_WINDOW. ALLEGRO_RESIZABLE The display is resizable (only applicable if combined with ALLE- GRO_WINDOWED). ALLEGRO_MAXIMIZED The display window will be maximized (only applicable if com- bined with ALLEGRO_RESIZABLE). Since: 5.1.12 ALLEGRO_OPENGL Require the driver to provide an initialized OpenGL context af- ter returning successfully. ALLEGRO_OPENGL_3_0 Require the driver to provide an initialized OpenGL context com- patible with OpenGL version 3.0. ALLEGRO_OPENGL_FORWARD_COMPATIBLE If this flag is set, the OpenGL context created with ALLE- GRO_OPENGL_3_0 will be forward compatible only, meaning that all of the OpenGL API declared deprecated in OpenGL 3.0 will not be supported. Currently, a display created with this flag will not be compatible with Allegro drawing routines; the display option ALLEGRO_COMPATIBLE_DISPLAY will be set to false. ALLEGRO_OPENGL_ES_PROFILE Used together with ALLEGRO_OPENGL, requests that the OpenGL con- text uses the OpenGL ES profile. A specific version can be re- quested with al_set_new_display_option(3). Note: Currently this is only supported by the X11/GLX driver. Since: 5.1.13 ALLEGRO_OPENGL_CORE_PROFILE Used together with ALLEGRO_OPENGL, requests that the OpenGL con- text uses the OpenGL Core profile. A specific version can be requested with al_set_new_display_option(3). Note: Currently this is only supported by the X11/GLX driver. Since: 5.2.7 ALLEGRO_DIRECT3D Require the driver to do rendering with Direct3D and provide a Direct3D device. ALLEGRO_PROGRAMMABLE_PIPELINE Require a programmable graphics pipeline. This flag is required to use ALLEGRO_SHADER(3) objects. Since: 5.1.6 ALLEGRO_FRAMELESS Try to create a window without a frame (i.e. no border or title- bar). This usually does nothing for fullscreen modes, and even in windowed modes it depends on the underlying platform whether it is supported or not. Since: 5.0.7, 5.1.2 ALLEGRO_NOFRAME Original name for ALLEGRO_FRAMELESS. This works with older ver- sions of Allegro. ALLEGRO_GENERATE_EXPOSE_EVENTS Let the display generate expose events. ALLEGRO_GTK_TOPLEVEL Create a GTK toplevel window for the display, on X. This flag is conditionally defined by the native dialog addon. You must call al_init_native_dialog_addon(3) for it to succeed. ALLE- GRO_GTK_TOPLEVEL is incompatible with ALLEGRO_FULLSCREEN. Since: 5.1.5 0 can be used for default values. SEE ALSO al_set_new_display_option(3), al_get_display_option(3), al_set_dis- play_option(3) Allegro reference manual al_set_new...play_flags(3)
NAME | SYNOPSIS | DESCRIPTION | SEE ALSO
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