X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/3cb332c1553bb977cb8db16c19c733684ef72805..8a31648287be0ef976f133de2786b137f1e98340:/samples/opengl/penguin/penguin.cpp?ds=sidebyside

diff --git a/samples/opengl/penguin/penguin.cpp b/samples/opengl/penguin/penguin.cpp
index aa01dc0ccb..c0c894069e 100644
--- a/samples/opengl/penguin/penguin.cpp
+++ b/samples/opengl/penguin/penguin.cpp
@@ -153,9 +153,6 @@ TestGLCanvas::TestGLCanvas(wxWindow *parent,
     // Explicitly create a new rendering context instance for this canvas.
     m_glRC = new wxGLContext(this);
 
-    // Make the new context current (activate it for use) with this canvas.
-    SetCurrent(*m_glRC);
-
     m_gldata.initialized = false;
 
     // initialize view matrix
@@ -223,7 +220,7 @@ void TestGLCanvas::OnEraseBackground(wxEraseEvent& WXUNUSED(event))
 void TestGLCanvas::LoadDXF(const wxString& filename)
 {
     wxFileInputStream stream(filename);
-    if (stream.Ok())
+    if (stream.IsOk())
 #if wxUSE_ZLIB
     {
         if (filename.Right(3).Lower() == wxT(".gz"))
@@ -303,6 +300,9 @@ void TestGLCanvas::InitGL()
 
 void TestGLCanvas::ResetProjectionMode()
 {
+    if ( !IsShownOnScreen() )
+        return;
+
     // This is normally only necessary if there is more than one wxGLCanvas
     // or more than one wxGLContext in the application.
     SetCurrent(*m_glRC);