Change wxWidgets LogLevel - c++

Question

I'm failing to change the LogLevel of the wxLog functionalities.
What I would like to achieve: Log everything to a log-file.
In the following sample code logging basically works, but I see only messages with a LogLevel of Warning or Error. I thought that settting a logLevel using wxLog::SetLogLevel(wxLOG_Info); should be enough, but obviously I'm missing something. Any hints?
#include <wx/wxprec.h>
#ifndef WX_PRECOMP
#include <wx/wx.h>
#endif
#include <wx/stdpaths.h>
class TestApp : public wxApp
{
public:
virtual bool OnInit();
private:
FILE* m_pLogFile;
};
bool TestApp::OnInit()
{
m_pLogFile = fopen("c:\\tmp\\foo.txt", "a+");
if (m_pLogFile == NULL)
{
return false;
}
wxLogStderr* pFileLogger = new wxLogStderr(m_pLogFile);
delete wxLog::SetActiveTarget(pFileLogger);
wxLog::SetLogLevel(wxLOG_Info);
wxLogError(L"Error");
wxLogWarning(L"Warning");
wxLogInfo(L"Info");
wxLogVerbose(L"Verbose");
wxLogDebug(L"Debug");
wxFrame* pFrame = new wxFrame(NULL, wxID_ANY, L"Title");
pFrame->Show();
return true;
}
wxIMPLEMENT_APP(TestApp);

Answer 1

Due to unfortunate historical reasons wxLogInfo() is actually exactly the same as wxLogVerbose() and for equally unfortunate backwards compatibility reasons, verbose logging must be enabled by explicitly calling wxLog::SetVerbose(true), so without it neither "Info" nor "Verbose" are logged (and with it both would be).
Actually we probably should finally fix this in wxWidgets 3.2, so hopefully it won't work like this in the next version. But for now you need to call SetVerbose() to enable these messages in addition to setting the log level.