X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/35f1f4f7ea3c88fa680ba69de487f67967ac51d1..ce4cf3859295e8e926cebf256c3ab5a0a1f869a8:/include/wx/glcanvas.h

diff --git a/include/wx/glcanvas.h b/include/wx/glcanvas.h
index 7257bbf35a..e02657cc96 100644
--- a/include/wx/glcanvas.h
+++ b/include/wx/glcanvas.h
@@ -20,8 +20,8 @@
 #include "wx/palette.h"
 #include "wx/window.h"
 
-class WXDLLIMPEXP_GL wxGLCanvas;
-class WXDLLIMPEXP_GL wxGLContext;
+class WXDLLIMPEXP_FWD_GL wxGLCanvas;
+class WXDLLIMPEXP_FWD_GL wxGLContext;
 
 // ----------------------------------------------------------------------------
 // Constants for attributes list
@@ -66,7 +66,7 @@ public:
      */
 
     // set this context as the current one
-    virtual void SetCurrent(const wxGLCanvas& win) const = 0;
+    virtual bool SetCurrent(const wxGLCanvas& win) const = 0;
 };
 
 // ----------------------------------------------------------------------------
@@ -99,15 +99,18 @@ public:
     // ----------
 
     // set the given context associated with this window as the current one
-    void SetCurrent(const wxGLContext& context) const;
+    bool SetCurrent(const wxGLContext& context) const;
 
     // flush the back buffer (if we have it)
-    virtual void SwapBuffers() = 0;
+    virtual bool SwapBuffers() = 0;
 
 
     // accessors
     // ---------
 
+    // check if the given attributes are supported without creating a canvas
+    static bool IsDisplaySupported(const int *attribList);
+
     const wxPalette *GetPalette() const { return &m_palette; }
 
     // miscellaneous helper functions