# Drag and Drop function **URL:** \ **Category:** General JUCE discussion\ **Created:** [March 19, 2005, 7:18pm UTC](https://forum.juce.com/t/drag-and-drop-function/195 "2005-03-19T19:18:29Z")\ **Posts on this page:** 17\ **Page:** 1
**Author:** ![IvanC](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/ivanc/32/685_2.png) [@IvanC](https://forum.juce.com/u/IvanC)\ **Post date:** [March 19, 2005, 7:18pm UTC](https://forum.juce.com/t/drag-and-drop-function/195/1 "2005-03-19T19:18:29Z")
Hello everybody ! Here is my problem : I want to add a Drag and Drop feature in my program to allow the drag and drop of MIDI files into Tracktion… I know it’s possible to do this because I have tried to drag and drop a MID between Tracktion and the Windows’ Explorer window… How can I do this with Juce ? The function I must use is this one but I don’t know how to configure it… ```auto ``` ---
**Author:** ![jules](https://avatars.discourse-cdn.com/v4/letter/j/41988e/32.png) [@jules](https://forum.juce.com/u/jules)\ **Post date:** [March 21, 2005, 5:45pm UTC](https://forum.juce.com/t/drag-and-drop-function/195/2 "2005-03-21T17:45:01Z")
no, that’s only for internal juce-based dragging, it can’t drag things outside into other apps. Check out PlatformUtilities::canDropFilesAtMousePosition() and dropFilesAtMousePosition(). You can use these in your mouseDrag() and mouseUp() methods, and set the cursor appropriately. ---
**Author:** ![IvanC](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/ivanc/32/685_2.png) [@IvanC](https://forum.juce.com/u/IvanC)\ **Post date:** [March 21, 2005, 8:15pm UTC](https://forum.juce.com/t/drag-and-drop-function/195/3 "2005-03-21T20:15:31Z")
OK, I will check it, thanks for the answers 😉 (Tracktion 2 Ruuuuuuuules) 8) ---
**Author:** ![jtxx000](https://avatars.discourse-cdn.com/v4/letter/j/b5a626/32.png) [@jtxx000](https://forum.juce.com/u/jtxx000)\ **Post date:** [March 21, 2005, 11:34pm UTC](https://forum.juce.com/t/drag-and-drop-function/195/4 "2005-03-21T23:34:28Z")
its not out yet is it??? or are you a beta tester :twisted: 😛 ---
**Author:** ![IvanC](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/ivanc/32/685_2.png) [@IvanC](https://forum.juce.com/u/IvanC)\ **Post date:** [March 22, 2005, 10:02am UTC](https://forum.juce.com/t/drag-and-drop-function/195/5 "2005-03-22T10:02:15Z")
No, a friend was at the NAMM in France and have seen it :lol: ---
**Author:** ![IvanC](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/ivanc/32/685_2.png) [@IvanC](https://forum.juce.com/u/IvanC)\ **Post date:** [March 24, 2005, 1:38pm UTC](https://forum.juce.com/t/drag-and-drop-function/195/6 "2005-03-24T13:38:42Z")
Oops Jules, I think I have found a bug in Juce… First Check what I have written : [code]void mouseDrag (const MouseEvent& e) { dragCours = true; } void mouseUp (const MouseEvent& e) { StringArray sa; ``` if (dragCours) { sa.add(fileHard->getFullPathName()); if (PlatformUtilities::canDropFilesAtMousePosition()) PlatformUtilities::dropFilesAtMousePosition(sa); } dragCours = false; ``` }[/code] As you have understood, that doesn’t work, and if I try for example to drag in the Dev C++ Explorer, it shows me one window for each character in the path, for “C:\Win.mid” it says me : “Can’t find C” “Can’t find :” "Can’t find " “Can’t find W” etc. etc. etc. But if i drag and drop from the Windows’ Explorer windows, that works. So maybe a bug in Juce ? ---
**Author:** ![jules](https://avatars.discourse-cdn.com/v4/letter/j/41988e/32.png) [@jules](https://forum.juce.com/u/jules)\ **Post date:** [March 24, 2005, 4:24pm UTC](https://forum.juce.com/t/drag-and-drop-function/195/7 "2005-03-24T16:24:56Z")
hmm - must be because it’s passing windows a unicode filename… I’ll investigate. ---
**Author:** ![jules](https://avatars.discourse-cdn.com/v4/letter/j/41988e/32.png) [@jules](https://forum.juce.com/u/jules)\ **Post date:** [March 24, 2005, 4:31pm UTC](https://forum.juce.com/t/drag-and-drop-function/195/8 "2005-03-24T16:31:05Z")
yeah - looks like I messed up. The line in PlatformUtils.cpp that says ` pDropFiles->fWide = SystemStats::getOSType() == SystemStats::Win95 || SystemStats::getOSType() == SystemStats::Win98; ` should just be: ` pDropFiles->fWide = true; ` God knows what I was thinking when I wrote that… ---
**Author:** ![IvanC](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/ivanc/32/685_2.png) [@IvanC](https://forum.juce.com/u/IvanC)\ **Post date:** [March 24, 2005, 6:48pm UTC](https://forum.juce.com/t/drag-and-drop-function/195/9 "2005-03-24T18:48:48Z")
Thanks, I will try 😉 ---
**Author:** ![IvanC](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/ivanc/32/685_2.png) [@IvanC](https://forum.juce.com/u/IvanC)\ **Post date:** [March 26, 2005, 6:32pm UTC](https://forum.juce.com/t/drag-and-drop-function/195/10 "2005-03-26T18:32:34Z")
I have modified the line, recompiled the Juce library and the problem is still alive… I precise I’m working with Win98 😢 ---
**Author:** ![jtxx000](https://avatars.discourse-cdn.com/v4/letter/j/b5a626/32.png) [@jtxx000](https://forum.juce.com/u/jtxx000)\ **Post date:** [March 27, 2005, 1:38am UTC](https://forum.juce.com/t/drag-and-drop-function/195/11 "2005-03-27T01:38:25Z")
Another question that’s slightly off topic: Is there any way to have drag and drop between two running instances of the same app? ---
**Author:** ![jules](https://avatars.discourse-cdn.com/v4/letter/j/41988e/32.png) [@jules](https://forum.juce.com/u/jules)\ **Post date:** [March 28, 2005, 11:05am UTC](https://forum.juce.com/t/drag-and-drop-function/195/12 "2005-03-28T11:05:37Z")
> [@](#): > > I have modified the line, recompiled the Juce library and the problem is still alive… I precise I’m working with Win98 oh, maybe win98 doesn’t handle the wide char stuff properly. Try setting the value to false and see if that works - I’ll have a proper look at it for the next release… ---
**Author:** ![IvanC](https://sea2.discourse-cdn.com/flex026/user_avatar/forum.juce.com/ivanc/32/685_2.png) [@IvanC](https://forum.juce.com/u/IvanC)\ **Post date:** [March 28, 2005, 4:44pm UTC](https://forum.juce.com/t/drag-and-drop-function/195/13 "2005-03-28T16:44:40Z")
Thanks 😉 ---
**Author:** ![jtxx000](https://avatars.discourse-cdn.com/v4/letter/j/b5a626/32.png) [@jtxx000](https://forum.juce.com/u/jtxx000)\ **Post date:** [March 28, 2005, 11:29pm UTC](https://forum.juce.com/t/drag-and-drop-function/195/14 "2005-03-28T23:29:19Z")
[quote=“jtxx000”]Another question that’s slightly off topic: Is there any way to have drag and drop between two running instances of the same app?[/quote] i guess that’s a no… 😛 ---
**Author:** ![jules](https://avatars.discourse-cdn.com/v4/letter/j/41988e/32.png) [@jules](https://forum.juce.com/u/jules)\ **Post date:** [March 30, 2005, 3:02pm UTC](https://forum.juce.com/t/drag-and-drop-function/195/15 "2005-03-30T15:02:59Z")
well you can use the normal drag + drop, like you would between juce and non-juce apps, but not the clever internal drag-and-drop stuff because they don’t live in the same memory-space. ---
**Author:** ![jtxx000](https://avatars.discourse-cdn.com/v4/letter/j/b5a626/32.png) [@jtxx000](https://forum.juce.com/u/jtxx000)\ **Post date:** [April 5, 2005, 12:12am UTC](https://forum.juce.com/t/drag-and-drop-function/195/16 "2005-04-05T00:12:20Z")
i tried using dropFilesAtMousePosition() but it doesn’t seem to be working for some reason. When i try to drag between two instances of my app canDropoFilesAtMousePosition() returns true but dropFilesAtMousePosition() doesn’t call the filesDropped() method on the other app. if you try to drop a file from my app to windows explorer canDropoFilesAtMousePosition() returns false. what am i doing wrong? ---
**Author:** ![jules](https://avatars.discourse-cdn.com/v4/letter/j/41988e/32.png) [@jules](https://forum.juce.com/u/jules)\ **Post date:** [May 12, 2017, 9:57am UTC](https://forum.juce.com/t/drag-and-drop-function/195/17 "2017-05-12T09:57:10Z")