windows/winmm · Standard Library

Windows WinMM declarations for joystick state queries through caller-owned JOYINFOEX records.

Schemas

`JOYINFOEX`

(-- JOYINFOEX) Defines extended joystick information returned by joyGetPosEx.

Dict schema

Field	Schema	Role
`dwSize`	`Nat32`	size of this structure in bytes
`dwFlags`	`Nat32`	data-selection flags
`dwXpos`	`Nat32`	X-axis position
`dwYpos`	`Nat32`	Y-axis position
`dwZpos`	`Nat32`	Z-axis position
`dwRpos`	`Nat32`	R-axis position
`dwUpos`	`Nat32`	U-axis position
`dwVpos`	`Nat32`	V-axis position
`dwButtons`	`Nat32`	button-state bitfield
`dwButtonNumber`	`Nat32`	currently pressed button number
`dwPOV`	`Nat32`	point-of-view hat angle in hundredths of a degree, or `0xFFFFn32` when centered
`dwReserved1`	`Nat32`	reserved value
`dwReserved2`	`Nat32`	reserved value

Imported functions

Stack effects list a C function's parameters with the first parameter on top; see importFunction.

`joyGetPosEx`

(pji uJoyID -- result) Retrieves extended information for a joystick.

Inputs

pji: JOYINFOEX Ref caller-owned writable joystick-information storage with dwSize set to its size and dwFlags selecting the requested data; the call fills it.
uJoyID: Nat32 joystick identifier from 0 to 15.

Outputs

result: Nat32 joystick status, 0n32 on success or an error code on failure.

Signature example

Printing @joyGetPosEx during compilation shows its imported Code signature.

"control"       use
"windows/winmm" use

{} Int32 {} [
  @joyGetPosEx printStack _:;
  0
] "main" exportFunction

Expected Output During Compilation

{uJoyID: Nat32; pji: {dwSize: Nat32; dwFlags: Nat32; dwXpos: Nat32; dwYpos: Nat32; dwZpos: Nat32; dwRpos: Nat32; dwUpos: Nat32; dwVpos: Nat32; dwButtons: Nat32; dwButtonNumber: Nat32; dwPOV: Nat32; dwReserved1: Nat32; dwReserved2: Nat32;} Ref;} Nat32 {convention: "";} codeRef