SPI_SETDOUBLECLKWIDTH top-level constant Null safety
Sets the width of the double-click rectangle to the value of the uiParam parameter.
The double-click rectangle is the rectangle within which the second click of a double-click must fall for it to be registered as a double-click.
To retrieve the width of the double-click rectangle, call GetSystemMetrics with the SM_CXDOUBLECLK flag.
const SPI_SETDOUBLECLKWIDTH = 0x001D;