Python glutCreateWindow error 'wrong type'

glut, glutcreatewindow, python

Solution

I just encountered exactly the same problem and found this blog entry:

http://codeyarns.com/2012/04/27/pyopengl-glut-ctypes-error/

Basically you need to specify that you are passing byte data rather than a string using `b'Window Title'`

Problem

I'm trying to create a window with glut in python and have the following code: ``` glutInit() glutInitWindowSize(windowWidth, windowHeight) glutInitWindowPosition(int(centreX - windowWidth/2), int(centreY - windowHeight/2)) glutCreateWindow("MyWindow") glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB | GLUT_DEPTH) glutDisplayFunc(displayFun) glutIdleFunc(animateFun) glutKeyboardFunc(keyboardFun) glutPassiveMotionFunc(mouseFun) glutReshapeFunc(reshapeFun) initFun() #loadTextures() glutMainLoop() ``` I get an error on the 'glutCreateWindow' line saying this: ``` Traceback (most recent call last): File "F:\MyProject\main.py", line 301, in <module> glutCreateWindow("MyWindow") File "C:\Python34\lib\site-packages\OpenGL\GLUT\special.py", line 73, in glutCreateWindow return __glutCreateWindowWithExit(title, _exitfunc) ctypes.ArgumentError: argument 1: <class 'TypeError'>: wrong type ``` the documentation on this function specifies ``` int glutCreateWindow(char *name); ```

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