- 1 year ago
GL_INVALID_OPERATION in glGetIntegerv() with GLAD
If you are encountering a GL_INVALID_OPERATION
error when calling glGetIntegerv()
in your OpenGL program that uses GLAD, there are a few possible causes and solutions you can try:
Make sure you have a valid OpenGL context: Before calling any OpenGL functions, make sure you have created a valid OpenGL context and made it current. You can create a context using a windowing library such as GLFW or SDL, and make it current using the
glfwMakeContextCurrent()
orSDL_GL_MakeCurrent()
functions, respectively.Check the version of OpenGL you are using: Some OpenGL functions, including
glGetIntegerv()
, require a certain version of OpenGL to be available. Make sure your OpenGL context supports the version of OpenGL required byglGetIntegerv()
. You can check the version of OpenGL your context supports by callingglGetString(GL_VERSION)
.Check the parameter you are passing to
glGetIntegerv()
: TheglGetIntegerv()
function takes an integer parameter specifying which OpenGL state variable to retrieve. Make sure you are passing a valid parameter to the function. You can find a list of valid state variables in the OpenGL documentation.Check the GLAD initialization: Make sure you have properly initialized GLAD and loaded all necessary OpenGL functions. You can do this by calling the
gladLoadGL()
function, and checking for any errors usinggladLoadGLLoader()
.
If none of these solutions resolve the issue, you may want to consider posting a more specific question with your code and error message, as there could be a number of reasons why you are encountering a GL_INVALID_OPERATION
error in glGetIntegerv()
.