A signed JavaScript safe integer passed as a Win32 message lParam (-9,007,199,254,740,991 through 9,007,199,254,740,991). Its bit layout depends on the message identifier; values outside JavaScript's exact-integer range are rejected even on 64-bit Windows.
A signed JavaScript safe integer passed as a Win32 message
lParam(-9,007,199,254,740,991through9,007,199,254,740,991). Its bit layout depends on the message identifier; values outside JavaScript's exact-integer range are rejected even on 64-bit Windows.