QR ON COMMAND
QR ON COMMAND ( area ; methodName )
| Parameter | Type | Description | |
|---|---|---|---|
| area | Integer | → | Reference of the area |
| methodName | Text | → | Name of the replacement method |
This command is not thread-safe, it cannot be used in preemptive code.
Description
The QR ON COMMAND command executes the 4D method passed in methodName when a Quick Report command is invoked by the user, by the selection of a menu command or by a click on a button.
If area equals zero, methodName will apply to each Quick Report area until the database is closed or until the following call to the command is made: QR ON COMMAND(0;"").
methodName receives two parameters:
- $1 is the reference of the area (Longint).
- $2 is the command number of the command that was selected (Longint). You can compare this value with the following constants of the QR Commands theme:
| Constant | Type | Value | Comment |
|---|---|---|---|
| qr cmd generate | Integer | 2008 | Use of command QR RUN recommended |
| qr cmd page setup | Integer | 2006 | |
| qr cmd print preview | Integer | 2007 |
Note: When planning on compiling the database, it is necessary to declare both $1 and $2 as Longints, even if you do not use them.
If you want the initial command to be executed, you need to include the following in the called method: QR EXECUTE COMMAND($1;$2).
If you pass an invalid area number, the error -9850 will be generated.
See also
QR Commands
QR EXECUTE COMMAND
QR Get command status