Drag Drop Overwrite

[czardas]

I have a single line edit control that accepts dropped files. However when I drop a second file into the same edit control, the second path becomes concatenated with the first. I simply want the original path to be overwritten. So I have added the following code to select all the data in the control before the drop occurs.

If $msg = $hFile Then _GUICtrlEdit_SetSel($hFile, 0, -1)

Now when the drop occurs, it overwrites the previous path; as expected. However I am curious to know if there are any better ways to do this.

[czardas]

Oh well, I guess nobody knows. It seems kinda strange to me, because I thought it would have been a standard thing to do. So standard, in fact, that I am surprized that it is not already a feature. Which, of course, is the reason I asked - in case I was missing something. etc...

Edited April 1, 2010 by czardas

[martin]

Oh well, I guess nobody knows. It seems kinda strange to me, because I thought it would have been a standard thing to do. So standard, in fact, that I am surprized that it is not already a feature. Which, of course, is the reason I asked - in case I was missing something. etc...

Since you didn't show us how you did it when it was a problem you are not making it easy for us to know what was wrong. I would expect that this would work-

GuiCtrlSetData($Edit1,$FileName); will replace any previous text.

If you wanted to add a new line then you simply need to add @CRLF first and add a third non-zero parameter to GuiCtrlSetData.

[czardas]

Since you didn't show us how you did it when it was a problem you are not making it easy for us to know what was wrong.

Thanks for your response Martin. You are absolutely right! I should have posted an example. I am using the control style $WS_EX_ACCEPTFILES and $GUI_DROPACCEPTED with an input control (single line). After dragging a file into the control, I was under the impression that subsequent file drops would overwrite any previous data in the control by default. Hopefully the code below will make things a bit clearer.

#include <GUIConstantsEx.au3>
#include <GuiEdit.au3>

$parent = GUICreate(" Drag Drop Overwrite", 320,170, @DesktopWidth/7, @DesktopHeight/7, -1, 0x00000018); $WS_EX_ACCEPTFILES
$sFile = GUICtrlCreateInput ( "", 10, 10, 300, 20)
GUICtrlSetState(-1,$GUI_DROPACCEPTED)
GUICtrlSetTip ( $sFile, " Drag your file into the white input box " )
GUISetState ()
While 1
    $msg = GUIGetMsg()
    Select
        Case $msg = $GUI_EVENT_CLOSE
            ExitLoop
        Case $msg = $sFile
            _GUICtrlEdit_SetSel($sFile, 0, -1) ; Comment out this line to see the difference.
        Case Else
    EndSelect
Wend
GUIDelete()

When I came up with this solution, I had no idea if it would work or not. I sometimes wonder if I am doing the right thing.