Any .NET API available to toggle the color filter windows settings?

Question

Any .NET API available to toggle the color filter windows settings?

Jone Selas 81

I need to turn on /off my windows Color filter setting using .Net APIs.

Jeanine Zhang-MSFT 11,356 Reputation points Microsoft External Staff

2022-05-25T01:37:17.54+00:00

@Jone Selas

Could you please tell us what kind of application you are developing? A win32 application, a WPF application or or other application?
Jone Selas 81 Reputation points

2022-05-26T04:00:06.297+00:00

Developing a Console application.. So trying to figure out any API available in C#..

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Jeanine Zhang-MSFT 11,356 Reputation points Microsoft External Staff

2022-05-25T01:37:17.54+00:00

@Jone Selas

Could you please tell us what kind of application you are developing? A win32 application, a WPF application or or other application?
Jone Selas 81 Reputation points

2022-05-26T04:00:06.297+00:00

Developing a Console application.. So trying to figure out any API available in C#..

Answer 1

Castorix31 90,681

It is done with Registry + atbroker to apply the change

Test in C++ :

int nActive = 1;
int nRet = SHSetValue(HKEY_CURRENT_USER, L"Software\\Microsoft\\ColorFiltering", L"Active", REG_DWORD, &nActive, sizeof(nActive));
ShellExecute(NULL, NULL, L"C:\\WINDOWS\\system32\\atbroker.exe", L"/colorfiltershortcut /resettransferkeys", NULL, SW_SHOWNORMAL);

Jone Selas 81 Reputation points

2022-05-26T04:01:17.35+00:00

Is there any API available to develop in C# other than changing registry settings?
Castorix31 90,681 Reputation points

2022-05-26T06:21:02.697+00:00

System Settings also calls SHSetValue
It is the same code in C#, with P/Invoke SHSetValue or standard .NET classes to set the value
Jone Selas 81 Reputation points

2022-05-26T08:14:50.337+00:00

No I didnt get your answer.. Can you send me any link/example in C#?

Castorix31 90,681

Just convert the C++ code...
Test without P/Invoke :

int nActive = 1;
using (RegistryKey rkCU = RegistryKey.OpenBaseKey(RegistryHive.CurrentUser, RegistryView.Registry64))
{
    using (RegistryKey rk = rkCU.CreateSubKey(@"Software\Microsoft\ColorFiltering", true))
    {
        rk.SetValue("Active", nActive, RegistryValueKind.DWord);
    }
}
using (Process p = new Process())
{
    p.StartInfo.FileName = "atbroker.exe";
    p.StartInfo.Arguments = "/colorfiltershortcut /resettransferkeys";
    p.StartInfo.UseShellExecute = true;
    p.Start();
}

Jone Selas 81 Reputation points

2022-05-26T09:09:39.797+00:00

This changes the Registry settings.. Without changing the registry key is there any other option?
Castorix31 90,681 Reputation points

2022-05-26T09:28:12.41+00:00

As I said, SystemSettings.exe also calls SHSetValue
Like for most of system settings, global parameters are stored in the registry
Jone Selas 81 Reputation points

2022-05-26T10:28:19.79+00:00

Can you tell me how to use this SystemSettings.exe? Do I need to create process? If so what are the arguments I need to pass for it?
Castorix31 90,681 Reputation points

2022-05-26T11:54:26.683+00:00

But SystemSettings.exe is the Screenshot you posted...
soren60 81 Reputation points

2022-05-30T10:00:26.507+00:00

You can mark the answer as right answer, it will hep users to find the answer for this type of question without solution on the net

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Any .NET API available to toggle the color filter windows settings?

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