- 1 year ago
How to change the DoubleClickSpeed for mouse in C#?
To change the DoubleClickSpeed for the mouse programmatically in C#, you can use the SystemParametersInfo
function from the user32.dll
library. Here's an example:
csharpusing System;
using System.Runtime.InteropServices;
class Program
{
const uint SPI_SETDOUBLECLICKTIME = 0x0020;
const uint SPIF_SENDCHANGE = 0x02;
[DllImport("user32.dll", SetLastError = true)]
static extern bool SystemParametersInfo(uint uiAction, uint uiParam, uint pvParam, uint fWinIni);
static void Main()
{
// Set the new DoubleClickSpeed value (in milliseconds)
int newDoubleClickSpeed = 500; // Example value
// Call SystemParametersInfo to change the DoubleClickSpeed
bool result = SystemParametersInfo(SPI_SETDOUBLECLICKTIME, (uint)newDoubleClickSpeed, 0, SPIF_SENDCHANGE);
// Check the result
if (result)
{
Console.WriteLine("DoubleClickSpeed changed successfully!");
}
else
{
Console.WriteLine("Failed to change DoubleClickSpeed.");
}
}
}
In this example:
The
SystemParametersInfo
function fromuser32.dll
is imported using theDllImport
attribute.Constants
SPI_SETDOUBLECLICKTIME
andSPIF_SENDCHANGE
are defined to specify the action and flag for changing the DoubleClickSpeed.The
Main
method sets thenewDoubleClickSpeed
variable to the desired value (in milliseconds).The
SystemParametersInfo
function is called with the appropriate parameters to change the DoubleClickSpeed. The new value is passed asuiParam
, and theSPIF_SENDCHANGE
flag is used to notify other applications of the change.The result of the operation is checked, and an appropriate message is displayed.
Note that changing system parameters like the DoubleClickSpeed may require elevated privileges, so ensure that your application is running with sufficient permissions.