Render through discrete, output through IGP - possible?

Hi everyone
So I've got an MSI B85I, which has three imaging outputs: HDMI, DVI and DisplayPort. A GTX 750Ti is also present in this build, but only has DVI and HDMI.
My monitor has a DisplayPort and HDMI, and I'd much prefer the image to go through DisplayPort.
Is there any way for the PC to do all the rendering with the GTX, and use the IGP just for the output?