在dev-c++ 编译时的记录：

编译器: Default compiler
执行 g++.exe...
g++.exe "E:\DevCpp\MycProgram\textbackground.cpp" -o "E:\DevCpp\MycProgram\textbackground.exe" -ansi -I"lib\gcc\mingw32\3.4.2\include" -I"include\c++\3.4.2\backward" -I"include\c++\3.4.2\mingw32" -I"include\c++\3.4.2" -I"include" -L"lib" -L"E:\DevCpp\mingw32\lib" -lobjc
E:\DevCpp\MycProgram\textbackground.cpp: In function `int main()':
E:\DevCpp\MycProgram\textbackground.cpp:7: error: `textbackground' undeclared (first use this function)
E:\DevCpp\MycProgram\textbackground.cpp:7: error: (Each undeclared identifier is reported only once for each function

供参考！在此编译器的问题还没解决