Fixed function prototype name.

src/glcontext_wgl.h

@@ -21,7 +21,7 @@ typedef void (APIENTRYP PFNGLTEXSUBIMAGE2DPROC) (GLenum target, GLint level, GLi
 typedef void (APIENTRYP PFNGLTEXPARAMETERIPROC) (GLenum target, GLenum pname, GLint param);
 typedef void (APIENTRYP PFNGLTEXPARAMETERIVPROC) (GLenum target, GLenum pname, const GLint *params);
 typedef void (APIENTRYP PFNGLTEXPARAMETERFPROC) (GLenum target, GLenum pname, GLfloat param);
-typedef void (APIENTRYP PFNGLPIXELSTOREI) (GLenum pname, GLint param);
+typedef void (APIENTRYP PFNGLPIXELSTOREIPROC) (GLenum pname, GLint param);
 typedef void (APIENTRYP PFNGLBINDTEXTUREPROC) (GLenum target, GLuint texture);
 typedef void (APIENTRYP PFNGLGENTEXTURESPROC) (GLsizei n, GLuint *textures);
 typedef void (APIENTRYP PFNGLDELETETEXTURESPROC) (GLsizei n, const GLuint *textures);