* Registers are emulated in '''QB64''' to allow older programs to be compiled. To enable mouse input in your programs, the recommended practice is to use [[_MOUSEINPUT]] and related functions.
* Registers are emulated in QB64 and there is no support for {{Parameter|intNum}} 33h mouse functions above 3 or {{Parameter|intNum}} requests other than 33.
* {{Parameter|inRegs}} are the values placed into the call and {{Parameter|outRegs}} are the register return values.
* Available in QuickBASIC versions 4 and up and required an external library to be loaded. <!-- Command line: QB.EXE /L in QB4.5 --> '''QB64''' emulates the statement without an external library.