|
joySetCapture
The joySetCature function captures a joystick by causing its messages to be sent to the
specified window.
MMRESULT joySetCapture(
HWND hwnd,
|
| UINT uJoyID,
|
| UINT uPeriod,
|
| BOOL fChanged
|
| );
|
|
Parameters
hwnd
Handle of the window to receive the joystick messages.
uJoyID
Identifier of the joystick (JOYSTICKID1 or JOYSTICKID2) to be captured.
uPeriod
Polling frequency, in milliseconds.
fChanged
Change position flag. Specify TRUE for this parameter to send messages only
when the position changes by a value greater than the joystick movement
threshold. Otherwise, messages are sent at the polling frequency specified in uPeriod.
Return Values
Returns JOYERR_NOERROR if successful or one of the following error values:
MMSYSERR_NODRIVER
| The joystick driver is not present.
| JOYERR_NOCANDO
| Cannot capture joystick input because a required service (such as a Windows
timer) is unavailable.
| JOYERR_UNPLUGGED
| The specified joystick is not connected to the system.
|
Remarks
This function fails if the specified joystick is currently captured. Call the joyReleaseCapture function to release the captured joystick, or destroy the window to release
the joystick automatically.
See Also
joyReleaseCapture
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