zhanghuiyuan21

在mfc中，用代码实现屏幕显示字符串时，出现了以下错误不知道什么原因，已包含了头文件gl.h？
Linking...
Feixing.obj : error LNK2001: unresolved external symbol __imp__glPopMatrix@0
Feixing.obj : error LNK2001: unresolved external symbol __imp__glEnable@4
Feixing.obj : error LNK2001: unresolved external symbol __imp__glRasterPos2d@16
Feixing.obj : error LNK2001: unresolved external symbol __imp__glColor4f@16
Feixing.obj : error LNK2001: unresolved external symbol _gluOrtho2D@32
Feixing.obj : error LNK2001: unresolved external symbol __imp__glLoadIdentity@0
Feixing.obj : error LNK2001: unresolved external symbol __imp__glMatrixMode@4
Feixing.obj : error LNK2001: unresolved external symbol __imp__glPushMatrix@0
Feixing.obj : error LNK2001: unresolved external symbol __imp__glDisable@4
Feixing.obj : error LNK2001: unresolved external symbol __imp__glIsEnabled@4
Debug/Feixing.exe : fatal error LNK1120: 10 unresolved externals
还有不知 glRasterPos  glColor4f这几个函数参数的取值范围，取什么值，才能显示在通道的屏幕上？

找本opengl的书看看吧！glRasterPos，  glColor4f的功能和取值书上都有介绍！