Changing font of ListBox or Edit Controls

[Fritterandwaste]

Hi

I am new to Autoit and to the forum. I'm wondering how to change the font of individual controls. In the code below, the first 3 lines work fine but the remainder do not. The ListBox and Edit controls are presented on screen but appear to adopt a default (small) font. They do not adopt the font defined by the GUISetFont and, when lines 5 and 7 are introduced, this has no effect either. The labels seem to work OK. I have also tried using the handles of the specific controls in the GUICtrlSetFont statements instead of -1 with no joy.

GUISetFont(12,  $FW_NORMAL, $GUI_FONTUNDER, $sFont,$hGUI) ; will display underlined characters
GUICtrlCreateLabel("underlined label", 10, 20)
GUICtrlCreateLabel("Hello world! How are you?", 30, 10)
Local $gLbxPlayList = _GUICtrlListBox_Create($hGUI, "Play List", 100, 100, 396, 296, $LBS_STANDARD + $WS_VSCROLL)
GUICtrlSetFont(-1, 12)
Local $gTxtPlayList = _GUICtrlEdit_Create($hGUI, "Edit this", 100, 500, 100, 50)
GUICtrlSetFont(-1, 12)

What might I be doing wrong please?

[Fritterandwaste]

Ah, it's not possible using GUICtrlSetFont but this post resolves it. It's odd that the documentation does not make this clear.

 

 

[Melba23]

Fritterandwaste,

The reason that the GUICtrlSetFont command does not work on the _GUICtrlEdit_Create command is because there is a fundamental difference between "native" AutoIt controls (those created using a GUICtrlCreate***** command) and those created with the UDF libraries (usually in the form of a GUICtrl*****_Create command).

The former are managed within AutoIt and the return from the creation command is a ControlID - which is actually an index to an internal array maintained by AutoIt. So when this index is passed to one of the "native" commands (such as GUICtrlSetFont) AutoIt know which control in the array is to be amended. UDF commands are passed direct to Windows and return a "Windows handle" - an ID used by Windows itself to identify everything (and I mean everything) on the system.  So passing a "handle" to a command expecting a "ControlID", or vice versa, will not work.

The docs do mention this - here are some examples where the ControlID/handle usage is explicitly mentioned:

For "native" controls:

GUICtrlCreateLabel:

Return Value
Success: the identifier (controlID) of the new control. 

GUICtrlSetFont:

Parameters
controlID The control identifier (controlID) as returned by a GUICtrlCreate...() function, or -1 for the last created control.

For UDF controls:

_GUICtrlListBox_Create
Return Value
Success: the handle to the Listbox control

_GUICtrlListBox_GetText (as an example)

Parameters
$hWnd Control ID/Handle to the control

As you can see, in the UDF case AutoIt will actually allow the passing of a "ControlID" as it stores the corresponding handle in its internal array - obviously the reverse cannot work as Windows has no knowledge of the internal array within AutoIt.

I hope that helps.

M23

[Fritterandwaste]

Thank you for your replies and so sorry for the long delay. I have been away. I think I've got it now!