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**POST(** //event// [,//control//] [,//thread//] [,//position//] **)**

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| **POST** | Posts an event. |
| //event// | An integer constant, variable, expression, or EQUATE containing an event number. A value in the range 400h to 0FFFh is a User-defined event. |
| //control// | An integer constant, EQUATE, variable, or expression containing the field number of the control affected by the event. If omitted, the event is field-independent. |
| //thread// | An integer constant, EQUATE, variable, or expression containing the execution thread number whose ACCEPT loop is to process the event. If omitted, the event is posted to the current thread. |
| //position// | An integer constant, EQUATE, variable, or expression containing either zero (0) or one (1). If one (1), the //event //message is placed at the front of the event message queue. If omitted or zero (0), the //event //message is placed at the end of the event message queue. |

**POST** posts an event to the currently active ACCEPT loop of the specified //thread//. This may be a User-defined event, or any other event. User-defined event numbers can be defined as any integer between 400h and 0FFFh. Any //event// posted with a //control// specified is a field-specific event, while those without are field-independent events.

POSTing an event causes the ACCEPT loop to fire but does not cause the event to "happen." For example, POST(EVENT:Selected,?MyControl) executes any code in EVENT:Selected for ?MyControl but does not cause ?MyControl to gain focus.

**Example:**

**Win1   WINDOW('Tools'),AT(156,46,32,28),TOOLBOX**

**        BUTTON('Date'),AT(0,0,,),USE(?Button1)**

**        BUTTON('Time'),AT(0,14,,),USE(?Button2)**

**       END**

** CODE**

** OPEN(Win1)**

** ACCEPT**

**  IF EVENT() = EVENT:User            !Detect user-defined event**

**   BREAK**

**  END**

**  CASE ACCEPTED()**

**  OF ?Button1**

**   ****POST****(EVENT:User,,UseToolsThread)  !Post field-independent event to other thread**

**  OF ?Button2**

**   ****POST****(EVENT:User)                  !Post field-independent event to this thread**

**  END**

** END**

** CLOSE(Win1)**

**See Also:**

[[accept  the event processor .htm|ACCEPT]]

[[event  return event number .htm|EVENT]]

[[modal events.htm|Modal Events]]