Hello,

So, fresh off of my last post I am running into an issue with using code that normally works. Essentially I am working off of this example online: http://en.wikibooks.org/wiki/OpenGL_...t_Rendering_01

And here is the code snippet that is giving me the GL_INVALID_ENUM error. The actual error occurs on the glTextImage2D() call.

Code :
glDisable(GL_CULL_FACE);
glUseProgram(TextProgramShaderID);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, tex);
glUniform1i(TextureUniform, 0);
glBindVertexArray(TextureVertexArrayObjectID);
const char *p;
glBindBuffer(GL_ARRAY_BUFFER, TextureVertexBufferObjectID);
for (p = text; *p; p++) {
	if (FT_Load_Char(face, *p, FT_LOAD_RENDER))
		continue;
	glTexImage2D(
		GL_TEXTURE_2D,
		0,
		GL_ALPHA,
		gFont->bitmap.width,
		gFont->bitmap.rows,
		0,
		GL_ALPHA,
		GL_UNSIGNED_BYTE,
		gFont->bitmap.buffer
		);
	float x2 = x + gFont->bitmap_left * sx;
	float y2 = -y - gFont->bitmap_top * sy;
	float w = gFont->bitmap.width * sx;
	float h = gFont->bitmap.rows * sy;
	GLfloat box[4][4] = {
		{ x2, -y2, 0, 0 },
		{ x2 + w, -y2, 1, 0 },
		{ x2, -y2 - h, 0, 1 },
		{ x2 + w, -y2 - h, 1, 1 },
	};
	glBufferData(GL_ARRAY_BUFFER, sizeof box, box, GL_DYNAMIC_DRAW);
	glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
	x += (gFont->advance.x >> 6) * sx;
	y += (gFont->advance.y >> 6) * sy;
 
}
glBindBuffer(GL_ARRAY_BUFFER, NULL);
glBindVertexArray(NULL);
glBindTexture(GL_TEXTURE_2D, NULL);
glUseProgram(PrimaryProgramShaderID);
glEnable(GL_CULL_FACE);
I am not sure what is happening here to cause the error; I stepped through the code and each of the uniforms have values associated with the bound shader and there is data coming into the supplied arguments.

Any ideas?

Thank you.