firefly blur() event

[Shawn Anderson]

In firefly, how can I trap when a control (text box) looses focus?

[Roger Garstang]

Look into WM_SETFOCUS/WM_KILLFOCUS messages. And, if any messages don't exist in the dropdown you can always add it in the CUSTOM message handler. One tool I use all the time is WinSpector to spy on a window or control and see what messages get sent, so I know what to trap and where to trap it (At form level or at control level).

Added:
Actually, in looking, it looks like in the edit controls it is sent as EN_Set/KillFocus messages too which FireFly uses in the dropdown, but either will work.

[Shawn Anderson]

killFocus is the ticket, thanks

[Shawn Anderson]

Now I see that killFocus is called everytime anything happens, like click on another control.

How can I just call a function when that text box looses focus?

[Paul Squires]

Hi Shawn,

How are you testing for the KillFocus?

'--------------------------------------------------------------------------------
Function FORM1_TEXT1_EN_KILLFOCUS ( _
                                  ControlIndex   As Long,  _  ' index in Control Array
                                  hWndForm       As Dword, _  ' handle of Form
                                  hWndControl    As Dword, _  ' handle of Control
                                  idTextControl  As Long   _  ' identifier of text control
                                  ) As Long
    
    zTrace "Text1 Killfocus"
    
End Function

[Shawn Anderson]

like this

Function OUTGOING_CONSIGNEDTO_EN_KILLFOCUS ( _
                                           ControlIndex   As Long,  _  ' index in Control Array
                                           hWndForm       As Dword, _  ' handle of Form
                                           hWndControl    As Dword, _  ' handle of Control
                                           idTextControl  As Long   _  ' identifier of text control
                                           ) As Long
                                           
	MsgBox "test blur"                                           

End Function

[Paul Squires]

Now I see that killFocus is called everytime anything happens, like click on another control.

How can I just call a function when that text box looses focus?

Hi Shawn,

That does make sense that KillFocus will fire whenever the text box looses focus. If you click on another control then obviously the text box no longer has control so it will fire the KillFocus. Maybe you can send me the project or a sample that exhibits the problem and I'll be sure to give you a more specific reasoning for the behavior you're experiencing.

[Shawn Anderson]

I will send you an example, thanks.

It is not only "firing" when expected (when that control looses focus) but when any control looses focus.

[Paul Squires]

Hi Shawn,

The problem is the MsgBox stealing focus during the KillFocus of the Text Box. I am sending you a private email based on the project that you sent me.

[Roger Garstang]

The dreaded msgbox issues. I use them a lot for troubleshooting, but you do have to remember focus issues. Also for people that wrongly process keys on KeyUp (KeyDown is better and gives you repeat functionality)...msgbox doesn't eat the KeyUp and it gets sent to your control/form too.