Ev_Sendevent - Texas Instruments TI-89 Developer's Manual

922

EV_sendEvent

Declaration: void EV_sendEvent (AppID destApp , Event * event )
Category(ies): Operating System
Description: Sends an event message to an application. The destination app receives
and processes the event in its event handling entry point.
destApp — ID of the destination application. Use EV_getAppID to find
Inputs:
event
Outputs: None
Assumptions: The destination app does not have to be started or active to receive
messages. You should first start the app (EV_startApp) if it is important
that the app be on the screen before it receives event .
Applications may communicate with each other by sending interapplication
messages, but this means of interfacing between apps is not
recommended. Interapplication messaging is largely replaced with an
object-oriented approach. Applications should communicate with each
other through their frame interface.
Apps can use this routine to send or forward OS events to other apps.
Side Effects: None
Availability: All versions of the TI-89 / TI-92 Plus.
TI-89 / TI-92 Plus
Differences: None
See Also: Not applicable
Example:
/* Send keypress to another application */
void sendChar(AppID destApp, USHORT ch)
{
Event e;
e.command = CM_KEY_PRESS;
e.info.keyInfo.keyCode = ch;
EV_sendEvent(destApp, &e);
}
TI-89 / TI-92 Plus Developer Guide
Appendix A: System Routines — Operating System
an app's ID given its internal name.
— Pointer to event message.
/* send keypress command */
/* stuff character to send */
/* send event to dest app */
Not for Distribution Beta Version January 26, 2001