c++ - MinGW + Eclipse : Type invalid conversion from 'void

Question

字符串:

glDebugMessageCallbackARB(&DebugOutputCallback, NULL);

给我错误:

Description Resource Path Location Type invalid conversion from 'void (attribute((stdcall)) )(GLenum, GLenum, GLuint, GLenum, GLsizei, const GLchar, GLvoid*) {aka void (attribute((stdcall)) )(unsigned int, unsigned int, unsigned int, unsigned int, int, const char, void*)}' to 'GLDEBUGPROCARB {aka void (attribute((stdcall)) )(unsigned int, unsigned int, unsigned int, unsigned int, int, const char, const void*)}' [-fpermissive]

请告诉我哪里错了？

Answer 1

编译器试图告诉你回调函数的签名应该是

void (*)(GLenum, GLenum, GLuint, GLenum, GLsizei, GLchar, GLvoid const*)

您传递的回调的最后一个参数是 GLvoid*，而它应该是 GLvoid const*。