digitalmars.D.learn - Derelict SFML2 - structs are forward referenced
- Lucien (18/18) Dec 26 2015 Hello.
- Rene Zwanenburg (17/35) Dec 26 2015 sfRenderWindow is an opaque struct, so its size is unknown. This
Hello. I want to use Derelict-SFML2 to create a simple window. But when I compile (linked with dub and derelict-util), I have the following error: src/app.d(30,20): Error: variable myproject.main.window no definition of struct sfRenderWindow ../../../.dub/packages/derelict-sfml2-3.0.1/source/derelict/sfm 2/graphics.d(56,1): Error: struct derelict.sfml2.graphics.sfRenderWindow unknown size src/app.d(31,5): Error: struct sfRenderWindow is forward referenced src/app.d(32,12): Error: struct sfRenderWindow is forward referenced src/app.d(35,16): Error: struct sfRenderWindow is forward referenced src/app.d(38,17): Error: struct sfRenderWindow is forward referenced My code: http://pastebin.com/1svZAB22 Is it a bug in Derelict-SFML2 or want did I do false ? Hoping that you understood me with my bad English :)
Dec 26 2015
On Saturday, 26 December 2015 at 09:48:29 UTC, Lucien wrote:Hello. I want to use Derelict-SFML2 to create a simple window. But when I compile (linked with dub and derelict-util), I have the following error: src/app.d(30,20): Error: variable myproject.main.window no definition of struct sfRenderWindow ../../../.dub/packages/derelict-sfml2-3.0.1/source/derelict/sfm 2/graphics.d(56,1): Error: struct derelict.sfml2.graphics.sfRenderWindow unknown size src/app.d(31,5): Error: struct sfRenderWindow is forward referenced src/app.d(32,12): Error: struct sfRenderWindow is forward referenced src/app.d(35,16): Error: struct sfRenderWindow is forward referenced src/app.d(38,17): Error: struct sfRenderWindow is forward referenced My code: http://pastebin.com/1svZAB22 Is it a bug in Derelict-SFML2 or want did I do false ? Hoping that you understood me with my bad English :)sfRenderWindow is an opaque struct, so its size is unknown. This means you can only use pointers to them, and any operations on them will have to be done using SFML. So in your code, change sfRenderWindow to sfRenderWindow*. Did you by any chance look at a C++ tutorial for SFML? Derelict binds to the C API so it looks a bit different. To create a window sfRenderWindow_create can be used, so lines 12 + 13 can be replaced by auto window = sfRenderWindow_create(sfVideoMode(200, 200), "SFML works !"); Another example: the function to check if a window is open is sfRenderWindow_isOpen, taking a pointer to an opaque sfRenderWindow struct as first parameter. Due to D's so called UFCS you can call this function in two ways: sfRenderWindow_isOpen(window); // Just like in C window.sfRenderWindow_isOpen(); // Use member-like syntax
Dec 26 2015
On Saturday, 26 December 2015 at 10:39:29 UTC, Rene Zwanenburg wrote:On Saturday, 26 December 2015 at 09:48:29 UTC, Lucien wrote:Thank you. I've this code now: ---------- sfRenderWindow* win = sfRenderWindow_create(sfVideoMode(200, 200), "SFML works !", 0, null); sfEvent* event; while (win.sfRenderWindow_isOpen()) { while (win.sfRenderWindow_pollEvent(event)) { if (event.type == sfEvtClosed) win.sfRenderWindow_close(); } } --------- But when compiling I got this error: derelict.util.exception.SymbolLoadException ../../../.dub/packages/derelict-util-2.0.4/source/derelict/u il/exception.d(35): Failed to load symbol sfJoystick_getIdentification from shared library libcsfml-window.so Any ideas ?Hello. I want to use Derelict-SFML2 to create a simple window. But when I compile (linked with dub and derelict-util), I have the following error: src/app.d(30,20): Error: variable myproject.main.window no definition of struct sfRenderWindow ../../../.dub/packages/derelict-sfml2-3.0.1/source/derelict/sfm 2/graphics.d(56,1): Error: struct derelict.sfml2.graphics.sfRenderWindow unknown size src/app.d(31,5): Error: struct sfRenderWindow is forward referenced src/app.d(32,12): Error: struct sfRenderWindow is forward referenced src/app.d(35,16): Error: struct sfRenderWindow is forward referenced src/app.d(38,17): Error: struct sfRenderWindow is forward referenced My code: http://pastebin.com/1svZAB22 Is it a bug in Derelict-SFML2 or want did I do false ? Hoping that you understood me with my bad English :)sfRenderWindow is an opaque struct, so its size is unknown. This means you can only use pointers to them, and any operations on them will have to be done using SFML. So in your code, change sfRenderWindow to sfRenderWindow*. Did you by any chance look at a C++ tutorial for SFML? Derelict binds to the C API so it looks a bit different. To create a window sfRenderWindow_create can be used, so lines 12 + 13 can be replaced by auto window = sfRenderWindow_create(sfVideoMode(200, 200), "SFML works !"); Another example: the function to check if a window is open is sfRenderWindow_isOpen, taking a pointer to an opaque sfRenderWindow struct as first parameter. Due to D's so called UFCS you can call this function in two ways: sfRenderWindow_isOpen(window); // Just like in C window.sfRenderWindow_isOpen(); // Use member-like syntax
Dec 26 2015
26.12.2015 15:34, Lucien пишет:On Saturday, 26 December 2015 at 10:39:29 UTC, Rene Zwanenburg wrote:You have old version of libcsfml that lacks of symbol sfJoystick_getIdentification. Try another version, may be build it from sources to have the newest one.On Saturday, 26 December 2015 at 09:48:29 UTC, Lucien wrote:Thank you. I've this code now: ---------- sfRenderWindow* win = sfRenderWindow_create(sfVideoMode(200, 200), "SFML works !", 0, null); sfEvent* event; while (win.sfRenderWindow_isOpen()) { while (win.sfRenderWindow_pollEvent(event)) { if (event.type == sfEvtClosed) win.sfRenderWindow_close(); } } --------- But when compiling I got this error: derelict.util.exception.SymbolLoadException ../../../.dub/packages/derelict-util-2.0.4/source/derelict/util/exception.d(35): Failed to load symbol sfJoystick_getIdentification from shared library libcsfml-window.so Any ideas ?Hello. I want to use Derelict-SFML2 to create a simple window. But when I compile (linked with dub and derelict-util), I have the following error: src/app.d(30,20): Error: variable myproject.main.window no definition of struct sfRenderWindow ../../../.dub/packages/derelict-sfml2-3.0.1/source/derelict/sfml2/graphics.d(56,1): Error: struct derelict.sfml2.graphics.sfRenderWindow unknown size src/app.d(31,5): Error: struct sfRenderWindow is forward referenced src/app.d(32,12): Error: struct sfRenderWindow is forward referenced src/app.d(35,16): Error: struct sfRenderWindow is forward referenced src/app.d(38,17): Error: struct sfRenderWindow is forward referenced My code: http://pastebin.com/1svZAB22 Is it a bug in Derelict-SFML2 or want did I do false ? Hoping that you understood me with my bad English :)sfRenderWindow is an opaque struct, so its size is unknown. This means you can only use pointers to them, and any operations on them will have to be done using SFML. So in your code, change sfRenderWindow to sfRenderWindow*. Did you by any chance look at a C++ tutorial for SFML? Derelict binds to the C API so it looks a bit different. To create a window sfRenderWindow_create can be used, so lines 12 + 13 can be replaced by auto window = sfRenderWindow_create(sfVideoMode(200, 200), "SFML works !"); Another example: the function to check if a window is open is sfRenderWindow_isOpen, taking a pointer to an opaque sfRenderWindow struct as first parameter. Due to D's so called UFCS you can call this function in two ways: sfRenderWindow_isOpen(window); // Just like in C window.sfRenderWindow_isOpen(); // Use member-like syntax
Dec 26 2015
Lucien <lucien.perregaux gmail.com> On Saturday, 26 December 2015 at 12:47:51 UTC, drug wrote:You have old version of libcsfml that lacks of symbol sfJoystick_getIdentification. Try another version, may be build it from sources to have the newest one.Indeed, the sfml library in the ubuntu repository isn't up-to-date. Thanks for your help.
Dec 26 2015