From fc95afb7f480305dce9d41ffcb20e8f7e3236d88 Mon Sep 17 00:00:00 2001
From: Manolo Gouy <Manolo>
Date: Wed, 31 Mar 2010 09:29:35 +0000
Subject: fl_copy_offscreen_with_alpha: always call alpha_blend if not on
 display

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@7378 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
---
 src/Fl_Double_Window.cxx | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

(limited to 'src')

diff --git a/src/Fl_Double_Window.cxx b/src/Fl_Double_Window.cxx
index 5e1268894..b17b900f1 100644
--- a/src/Fl_Double_Window.cxx
+++ b/src/Fl_Double_Window.cxx
@@ -153,10 +153,7 @@ void fl_copy_offscreen_with_alpha(int x,int y,int w,int h,HBITMAP bitmap,int src
   BOOL alpha_ok = 0;
   // first try to alpha blend
   int to_display = Fl_Device::current()->type() < 256; // true iff display output
-  if ( !to_display) { // ask if non-display device can alpha-blend pixel by pixel
-    alpha_ok = (GetDeviceCaps(fl_gc, SHADEBLENDCAPS) == SB_PIXEL_ALPHA);
-    }
-  if (alpha_ok || (to_display && fl_can_do_alpha_blending()))
+  if ( (!to_display) || fl_can_do_alpha_blending()) // if not on display, always try alpha_blend
     alpha_ok = fl_alpha_blend(fl_gc, x, y, w, h, new_gc, srcx, srcy, w, h, blendfunc);
   // if that failed (it shouldn't), still copy the bitmap over, but now alpha is 1
   if (!alpha_ok)
-- 
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