About QuickGamma (quickgamma.de):
Stuart P. Bentley wrote:
Why does QuickGamma load one gamma setup across all monitors? Each monitor has its own gamma requirements, doesn’t it?
QuickGamma uses the Windows GDI (Graphical Device Interface) to load a gamma ramp into a video card LUT (Look Up Table). Unfortunately, the Windows GDI does not work properly with multiple monitors and has a lot of other flaws I have to circumvent. This is the reason, why QuickGamma does not work for each monitor in a multiple monitor environment.
To overcome this limitation, QuickGamma would have to interface to the video card driver directly. This is not feasible because the video card manufacturers do not disclose any information on how to interface their drivers. They probably are disclosing information to well known companies upon request as long as they think it will help their business. They would not even reply to me because I could not help their business (selling video cards). Keep in mind that I'm a single person writing a program, which I'm giving away for free...
A couple of years ago I wrote a multiple monitor version of QuickGamma just to find out that the Windows GDI does not work properly with multiple monitors. If you could provide me with the necessary information on how to load each monitors LUT in a multiple monitor environment, I would be happy to implement the multiple monitor support. Earning not a dime with QuickGamma, I cannot spend the time and effort trying to twist the video card manufacturers arm.
Regards,
Eberhard Werle
Insight, anyone?