wxWidgets Discussion Forum

Romas wrote:Hello,

If we are talking about windows only project, then there is a function you might read about: SetClipboardViewer. However, if the project is multiplatform, I cannot help you

Thanks, but although the app is not multiplatform I don't want to tie it to any OS.

Cheers,

Andre

Also, wxMetafile::SetClipboard() doesn't call wxTheClipboard->Open() to acquire the clipboard. Is it a bug or wxTheClipboard::AddData() does it behind the scenes?

Cheers,

Andre

I haven't used yet but as far as I know, wxWidgets sends wxUpdateUIEvent events when it becomes idle so that you can check if anything needs to be updated when the application is idle (like if a menu item should become unavailable): http://docs.wxwidgets.org/stable/wx_wxupdateuievent.html#wxupdateu...

I debugged my app step-by-step and wxMetafile::SetClipboard() is defined as: bool wxEnhMetaFile::SetClipboard(int WXUNUSED(width), int WXUNUSED(height)) { #if wxUSE_DRAG_AND_DROP && wxUSE_CLIPBOARD wxCHECK_MSG( m_hMF, false, _T("can't copy invalid metafile to clipboard") ); return ...

Your original LongQueryThreadProc was: void LongQueryThreadProc(void* p) { SQLite3DB* pdb=(SQLite3DB*)p; // some long and time consuming query goes here... nThreads--; } and you were not updating the UI there. Now you're invoking wxMessageBox so you better follow doublemax's advices. Your program is...

Any reason to use _beginthread? Maybe CreateThread or wxWindows thread facilities will do better?

Cheers,

Andre

Can you verify if
Finishes or is hanging?

Cheers,

Andre

samsam598 wrote:But I still do not know where to put *volatile*.

Sorry, my bad. You should use volatile in the declaration of nThreads, in the part of your code where you say global variables.

Cheers,

Andre

Sorry. Call wxClipboard::SetData() once, but call wxDataObject::SetData() of the data object you pass in the one call to wxClipboard::SetData() multiple times for each format http://docs.wxwidgets.org/stable/wx_wxdataobject.html#wxdataobjectsetdata -Max FYI: I haven't tried it but wxDataObject::Set...

Use the SetData() method of wxClipboard to set the data for each of the different formats you are interested in. http://docs.wxwidgets.org/stable/wx_wxclipboard.html#wxclipboard -Max Hum, the pages says: Call this function to set the data object to the clipboard. This function will clear all previo...

Hi All, I'd like to copy a metafile to the clipboard along with some other formats in a wxDataObjectComposite object. I already copy metafiles using void Panel::CopyAsMetafile() { #ifdef _WIN32 wxMetafileDC mdc; m_Graph->Paint(mdc); wxMetafile *meta = mdc.Close(); meta->SetClipboard(); delete meta; ...

Hi All, My app uses a timer in order to check if the clipboard contains compatible data that it can paste: void Shader::OnTimer(wxTimerEvent& evt) { m_MenuBar->Enable(wxID_PASTE, wxTheClipboard->IsSupported(wxDataFormat(wxT("igFragmentShader/Selection")))); } It works fine, but it feel...

Hi All, I'm trying to copy custom data to/from the clipboard but am failing. Copy code: // Generate XML. wxXmlDocument doc; doc.SetRoot(SerializeSelected()); wxStringOutputStream sos; doc.Save(sos); wxString xml = sos.GetString(); // Create a custom data object we recognize. wxCustomDataObject *cdo ...

Thank you Andre! But I am sorry it does not make sense :P Yes it does because your problem as stated in your first post is: The program hangs at "Waiting for LongQueryThreadProc". It's stuck because it doesn't see nThreads changing its value as the compiler "caches" the value. P...

I'd like to remember you I've never used wxWidgets' socket classes, so I may be missing some easier way of doing this. In the app that will send the image: 1. create a new thread which creates a socket connected to the other app that will receive the image. 2. image.SaveFile() the image over the out...