Question

伙计们我想在Ubuntu 11.04上安装allegro 5库。我遵循的教程is这个。现在我在第一次尝试安装库时遇到了一些错误，但我可以克服它们并正确安装库。问题是，当我尝试运行我的示例代码时

#include <allegro5/allegro.h> 

int main(int argc, char *argv[]) 

{
allegro_init(); 

install_keyboard(); 

set_gfx_mode(GFX_AUTODETECT, 640,480,0,0); 

readkey();

return 0; 
}

END_OF_MAIN()

我收到错误，如

ajinkya@ajinkya-8I945GZME-RH:~/random$ g++ example.cpp -o example -lalleg
example.cpp: In function ‘int main(int, char**)’:
example.cpp:7:15: error: ‘allegro_init’ was not declared in this scope
example.cpp:9:19: error: ‘install_keyboard’ was not declared in this scope
example.cpp:11:15: error: ‘GFX_AUTODETECT’ was not declared in this scope
example.cpp:11:42: error: ‘set_gfx_mode’ was not declared in this scope
example.cpp:13:10: error: ‘readkey’ was not declared in this scope
example.cpp: At global scope:
example.cpp:18:13: error: expected constructor, destructor, or type conversion at end   of input

我在/usr/include/allegro5中拥有所有主要的头文件。

Answer 1

您是否检查过这些方法实际存在于头文件中？

您似乎正在使用Allegro 4 API而不是Allegro 5：见http://wiki.allegro.cc/index.php?title=Allegro_5_Tutorial/Displays

'allegro_init（）'未在此范围内声明

1 个答案: