I am writing a program that controls another piece of software. This other software simply displays graphics and outputs them to a video card using the manufacturer's hardware (something I cannot write for myself). However, without going into unneeded detail on the inner working of the project, the manufacturer's software will only update its "graphics preview" window when it gets focus (clicking the form, alt tabbing, etc). So my question is, what is the best way I could more or less give that application focus real quick so it cant update without being obtrusive (without bringing to front or restoring/maximizing). Hopefully my explanation is understood.