OPENGL问题

dj_vc

成功编译,且正确连接,可运行.但是是黑屏,不用主函数循环时,可正常显示.请问是什么原因?
代码如下:

#include <glos.h>
#include <gl/gl.h>
#include <gl/glaux.h>


void myinit(void);
void CALLBACK myDisplay(void);

void main()
{
        auxInitDisplayMode(AUX_SINGLE|AUX_RGBA);
        auxInitPosition(50,50,550,550);
        auxInitWindow("_vc program");
        myinit();
        auxMainLoop(myDisplay);
}

void myinit(void)
{
        glClearColor(0.0,0.0,0.0,0.0);
        glClear(GL_COLOR_BUFFER_BIT);
}

void CALLBACK myDisplay(void)
{
        glColor3f(1.0,1.0,0.0);
        auxWireSphere(1.0);
        glFlush();
}


[em17]