mirrors
/
fltk
mirror of https://github.com/fltk/fltk
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Simpler implementation of Fl_GDI_Graphics_Driver::copy_offscreen_with_alpha() does just as well. 

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@10334 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
This commit is contained in:
Manolo Gouy 2014-09-23 10:36:58 +00:00
parent 023589e703
commit 43d26240b5
1 changed files with 1 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
src/Fl_Double_Window.cxx
View File

@ -214,12 +214,9 @@ void Fl_GDI_Graphics_Driver::copy_offscreen_with_alpha(int x,int y,int w,int h,H
HDC new_gc = CreateCompatibleDC(fl_gc);
int save = SaveDC(new_gc);
SelectObject(new_gc, bitmap);
fl_can_do_alpha_blending(); // make sure this is called
BOOL alpha_ok = 0;
// first try to alpha blend
// if to printer, always try alpha_blend
if ( (fl_graphics_driver->class_name() == Fl_GDI_Printer_Graphics_Driver::class_id && fl_alpha_blend) ||
(fl_graphics_driver->class_name() == Fl_GDI_Graphics_Driver::class_id && fl_can_do_alpha_blending()) ) {
if ( fl_can_do_alpha_blending() ) {
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