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Clipboard and DnD issues on Linux Mint [message #50407] |
Thu, 18 October 2018 13:37 |
Tom1
Messages: 1221 Registered: March 2007
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Senior Contributor |
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Hi,
I do not seem to be able to drop/paste files dragged/copied from an U++ application to the destop on Linux Mint 19 Cinnamon 64-bit. The other way around, i.e. from Cinnamon desktop to the U++ application, it works fine.
For copy, the desktop context menu does not allow Paste.
For dropping the files, it complains with the following dialog contents:
"Error while copying.
There was an error getting information about ".".
Show more details
Operation not supported
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I have tested with this modified version of reference/Dropfiles:
#include <CtrlLib/CtrlLib.h>
using namespace Upp;
struct DndTest : public TopWindow {
virtual void Paint(Draw &w);
virtual void DragAndDrop(Point p, PasteClip& d);
virtual bool Key(dword key, int count);
virtual void LeftDrag(Point p, dword keyflags);
Vector<String> files;
DndTest();
};
void DndTest::Paint(Draw &w)
{
w.DrawRect(GetSize(), SColorPaper());
if(files.GetCount())
for(int i = 0; i < files.GetCount(); i++)
w.DrawText(2, 2 + i * Draw::GetStdFontCy(), files[i]);
else
w.DrawText(2, 2, "None");
}
void DndTest::DragAndDrop(Point p, PasteClip& d)
{
if(IsDragAndDropSource())
return;
if(AcceptFiles(d)) {
files = GetFiles(d);
Refresh();
}
}
bool DndTest::Key(dword key, int count)
{
if(key == K_CTRL_V) {
files = GetFiles(Ctrl::Clipboard());
Refresh();
return true;
}
else if(key == K_CTRL_C) {
ClearClipboard();
VectorMap<String, ClipData> data;
AppendFiles(data, files);
AppendClipboard(data);
Refresh();
return true;
}
return false;
}
void DndTest::LeftDrag(Point p, dword keyflags)
{
if(files.GetCount()) {
VectorMap<String, ClipData> data;
AppendFiles(data, files);
DoDragAndDrop(data, Null, DND_COPY);
}
}
DndTest::DndTest()
{
Title("I need files!");
}
GUI_APP_MAIN
{
DndTest().Run();
}
Note that on Windows this all works well. (CTRL+C, CTRL+V and DnD in both directions.)
Best regards,
Tom
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