Making a function call

Create a pushbutton on the Easy Access screen that will make a call to a BAPI function. The code is as follows:
```
del("X[IMAGE_CONTAINER]");
pushbutton([2,1] , "Call Example" ,{"process":test_call});
```
Create an inputfield to sisplay the resulting message. The code is as follows:
```
inputfield([2,20],"1.Message", [2,50], {"name":"z_type", "size":"70"});
```
The screen now appears as follows:

Write a function to call the BAPI function. An example is shown below:

function test_call(){
  call("BAPI_USER_GET_DETAIL",{"in.USERNAME":"&V[_user]","table.RETURN(width:3000)":"zguixt_return"});
  println("return:"+zguixt_return);
  
  for(i=0; i<zguixt_return.length; i++){
    zguixt_var = zguixt_return[i].toString();
    println("TYPE:"+zguixt_var.substring(0,1));
    println("ID:"+zguixt_var.substring(1,21));
    println("NUMBER:"+zguixt_var.substring(21,24));
    println("MESSAGE:"+zguixt_var.substring(24,244));
  }
  set("V[z_type]" , zguixt_return[0].toString().substring(24,244))
}

Using the function, we can make a call to the specified BAPI function USER_GET_DETAIL. The input is the username, which is pulled from a table containing the user details. Once the requested data is returned, the function will print the user infromation into the consoel and will also display a message on the screen as shown below: