diff --git a/src/wx/panel.cpp b/src/wx/panel.cpp
index 685154b7..6cb6652b 100644
--- a/src/wx/panel.cpp
+++ b/src/wx/panel.cpp
@@ -58,6 +58,7 @@ GameArea::GameArea()
     Bind(WX_THREAD_REQUEST_UPDATEDRAWPANEL, &GameArea::RequestUpdateDrawPanel, this);
     Bind(WX_THREAD_REQUEST_DRAWFRAME, &GameArea::RequestDrawFrame, this);
     Bind(WX_THREAD_REQUEST_UPDATESTATUSBAR, &GameArea::RequestUpdateStatusBar, this);
+    Bind(WX_THREAD_REQUEST_GBPRINTER, &GameArea::ShowPrinter, this);
 #endif
 }
 
@@ -1149,6 +1150,55 @@ void GameArea::RequestStatusBar(int speed, int frames)
     wxQueueEvent(this, event);
 }
 
+struct PrinterDataDialog {
+    uint16_t* to_print;
+    uint16_t** accum_prdata;
+    int lines, feed;
+    int *accum_prdata_len, *accum_prdata_size;
+};
+PrinterDataDialog printerDataDialog;
+
+void GameArea::RequestGBPrinter(uint16_t* to_print, uint16_t** accum_prdata, int lines, int feed, int *accum_prdata_len, int *accum_prdata_size)
+{
+    wxThreadEvent *event = new wxThreadEvent(WX_THREAD_REQUEST_GBPRINTER);
+    printerDataDialog = {to_print, accum_prdata, lines, feed, accum_prdata_len, accum_prdata_size};
+    event->SetPayload(&printerDataDialog);
+    wxQueueEvent(this, event);
+}
+
+void GameArea::ShowPrinter(wxThreadEvent& event)
+{
+    wxCriticalSectionLocker lock(MainFrame::emulationCS);
+    PrinterDataDialog *pdd = event.GetPayload<PrinterDataDialog*>();
+
+    uint16_t* to_print = pdd->to_print;
+    uint16_t** accum_prdata = pdd->accum_prdata;
+    int lines = pdd->lines;
+    int feed = pdd->feed;
+    int *accum_prdata_len = pdd->accum_prdata_len;
+    int *accum_prdata_size = pdd->accum_prdata_size;
+
+    PrintDialog dlg(to_print, lines, !(feed & 15));
+    int ret = dlg.ShowModal();
+
+    if (ret == wxID_OK) {
+        *accum_prdata_len = (lines + 1) * 162;
+
+        if (to_print != *accum_prdata) {
+            if (*accum_prdata_size < *accum_prdata_len) {
+                if (!(*accum_prdata_size))
+                    *accum_prdata = (uint16_t*)calloc(*accum_prdata_len, 2);
+                else
+                    *accum_prdata = (uint16_t*)realloc(*accum_prdata, *accum_prdata_len * 2);
+
+                *accum_prdata_size = *accum_prdata_len;
+            }
+
+            memcpy(*accum_prdata, to_print, *accum_prdata_len * 2);
+        }
+    }
+}
+
 void GameArea::RequestDrawFrame(wxThreadEvent& WXUNUSED(event))
 {
     wxCriticalSectionLocker lock(MainFrame::emulationCS);
diff --git a/src/wx/sys.cpp b/src/wx/sys.cpp
index f607f3fe..2f502cce 100644
--- a/src/wx/sys.cpp
+++ b/src/wx/sys.cpp
@@ -664,53 +664,6 @@ int systemGetSensorZ()
     return sensorz[gopts.default_stick - 1] / 10;
 }
 
-class PrintDialog : public wxEvtHandler, public wxPrintout {
-public:
-    PrintDialog(const uint16_t* data, int lines, bool cont);
-    ~PrintDialog();
-    int ShowModal()
-    {
-        dlg->SetWindowStyle(wxCAPTION | wxRESIZE_BORDER);
-
-        if (gopts.keep_on_top)
-            dlg->SetWindowStyle(dlg->GetWindowStyle() | wxSTAY_ON_TOP);
-        else
-            dlg->SetWindowStyle(dlg->GetWindowStyle() & ~wxSTAY_ON_TOP);
-
-        CheckPointer(wxGetApp().frame);
-        return wxGetApp().frame->ShowModal(dlg);
-    }
-
-private:
-    void DoSave(wxCommandEvent&);
-    void DoPrint(wxCommandEvent&);
-    void ChangeMag(wxCommandEvent&);
-    void ShowImg(wxPaintEvent&);
-    bool OnPrintPage(int pno);
-    void OnPreparePrinting();
-    bool HasPage(int pno) { return pno <= npw * nph; }
-    void GetPageInfo(int* minp, int* maxp, int* pfrom, int* pto)
-    {
-        *minp = 1;
-        *maxp = npw * nph;
-        *pfrom = 1;
-        *pto = 1;
-    }
-
-    wxDialog* dlg;
-    wxPanel* p;
-    wxImage img;
-    wxBitmap* bmp;
-    wxControlWithItems* mag;
-
-    static wxPrintData* printdata;
-    static wxPageSetupDialogData* pagedata;
-    wxRect margins;
-    int npw, nph;
-
-    DECLARE_CLASS(PrintDialog)
-};
-
 IMPLEMENT_CLASS(PrintDialog, wxEvtHandler)
 
 PrintDialog::PrintDialog(const uint16_t* data, int lines, bool cont):
@@ -1022,6 +975,9 @@ void systemGbPrint(uint8_t* data, int len, int pages, int feed, int pal, int con
         return;
     }
 
+#ifndef NO_THREAD_MAINLOOP
+    panel->RequestGBPrinter(to_print, &accum_prdata, lines, feed, &accum_prdata_len, &accum_prdata_size);
+#else
     PrintDialog dlg(to_print, lines, !(feed & 15));
     int ret = dlg.ShowModal();
 
@@ -1041,6 +997,7 @@ void systemGbPrint(uint8_t* data, int len, int pages, int feed, int pal, int con
             memcpy(accum_prdata, to_print, accum_prdata_len * 2);
         }
     }
+#endif
 }
 
 void systemScreenMessage(const wxString& msg)
diff --git a/src/wx/wxvbam.h b/src/wx/wxvbam.h
index 36a95df8..0e5bf1a7 100644
--- a/src/wx/wxvbam.h
+++ b/src/wx/wxvbam.h
@@ -510,6 +510,7 @@ class DrawingPanelBase;
 wxDEFINE_EVENT(WX_THREAD_REQUEST_UPDATEDRAWPANEL, wxThreadEvent);
 wxDEFINE_EVENT(WX_THREAD_REQUEST_DRAWFRAME, wxThreadEvent);
 wxDEFINE_EVENT(WX_THREAD_REQUEST_UPDATESTATUSBAR, wxThreadEvent);
+wxDEFINE_EVENT(WX_THREAD_REQUEST_GBPRINTER, wxThreadEvent);
 #endif // NO_THREAD_MAINLOOP
 
 class GameArea : public wxPanel, public HiDPIAware
@@ -530,6 +531,8 @@ public:
     void RequestUpdateStatusBar(wxThreadEvent&);
     void RequestDraw();
     void RequestStatusBar(int speed, int frames);
+    void RequestGBPrinter(uint16_t*, uint16_t**, int, int, int*, int*);
+    void ShowPrinter(wxThreadEvent&);
 #endif
 
     void DestroyDrawingPanel();
@@ -776,6 +779,53 @@ private:
 
 #include "opts.h"
 
+class PrintDialog : public wxEvtHandler, public wxPrintout {
+public:
+    PrintDialog(const uint16_t* data, int lines, bool cont);
+    ~PrintDialog();
+    int ShowModal()
+    {
+        dlg->SetWindowStyle(wxCAPTION | wxRESIZE_BORDER);
+
+        if (gopts.keep_on_top)
+            dlg->SetWindowStyle(dlg->GetWindowStyle() | wxSTAY_ON_TOP);
+        else
+            dlg->SetWindowStyle(dlg->GetWindowStyle() & ~wxSTAY_ON_TOP);
+
+        CheckPointer(wxGetApp().frame);
+        return wxGetApp().frame->ShowModal(dlg);
+    }
+
+private:
+    void DoSave(wxCommandEvent&);
+    void DoPrint(wxCommandEvent&);
+    void ChangeMag(wxCommandEvent&);
+    void ShowImg(wxPaintEvent&);
+    bool OnPrintPage(int pno);
+    void OnPreparePrinting();
+    bool HasPage(int pno) { return pno <= npw * nph; }
+    void GetPageInfo(int* minp, int* maxp, int* pfrom, int* pto)
+    {
+        *minp = 1;
+        *maxp = npw * nph;
+        *pfrom = 1;
+        *pto = 1;
+    }
+
+    wxDialog* dlg;
+    wxPanel* p;
+    wxImage img;
+    wxBitmap* bmp;
+    wxControlWithItems* mag;
+
+    static wxPrintData* printdata;
+    static wxPageSetupDialogData* pagedata;
+    wxRect margins;
+    int npw, nph;
+
+    DECLARE_CLASS(PrintDialog)
+};
+
 // I should add this to SoundDriver, but wxArrayString is wx-specific
 // I suppose I could make subclass wxSoundDriver.  maybe later.