CreateNewTextureID

From Valve Developer Community

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int ISurface::CreateNewTextureID( bool procedural = false )

Use this before DrawSetTextureFile or DrawSetTextureRGBA and after DrawGetTextureId to initialize a new texture ID.

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Sample

currentId = surface()->DrawGetTextureId( texturename );
if ( currentId == -1 )
{
	currentId = surface()->CreateNewTextureID();
	surface()->DrawSetTextureFile( currentId, texturename, false, true );
}
Retrieved from "http://developer.valvesoftware.com/wiki/CreateNewTextureID"