---
name: "glXQueryVersion"
section: "3x"
platform: "linux"
package: "xlibmesa-gl-dev"
version: "4.3.0.dfsg.1-14sarge7"
release: "Debian 3.1 (Sarge)"
platforms: ["linux"]
url: "https://new.carta.tech/glXQueryVersion"
---

# glXQueryVersion(3x)

return the version numbers of the GLX extension

## NAME

glXQueryVersion - return the version numbers of the GLX extension

## C SPECIFICATION

Bool **glXQueryVersion**( Display *\*dpy*,

```
	int *major,
	int *minor )
```

delim $$

## PARAMETERS

- *dpy*

  Specifies the connection to the X server.

- *major*

  Returns the major version number of the GLX server extension.

- *minor*

  Returns the minor version number of the GLX server extension.

## DESCRIPTION

**glXQueryVersion** returns the major and minor version numbers of the GLX extension implemented by the server associated with connection *dpy*. Implementations with the same major version number are upward compatible, meaning that the implementation with the higher minor number is a superset of the version with the lower minor number.

*major* and *minor* do not return values if they are specified as **NULL**.

## ERRORS

**glXQueryVersion** returns **False** if it fails, **True** otherwise.

*major* and *minor* are not updated when **False** is returned.

## SEE ALSO

**glXQueryExtension**