double buffer ,x11 only ?

[deepinlife]

guys i use the function

qt_x11_set_global_double_buffer(bool);

it is said in the documentation it can be made on x11.
is there a mean to use it on other platform ?
if no if there is any other workaround.

i want to use it on Qt/Embedded.

[wysota]

Which version? All Qt4 based versions use double buffering by default.

[deepinlife]

QT 4.2.1
i m developing it on X11 but i will use it on embedded

[wysota]

If your framebuffer is double buffered, then by default it should be used. As far as I remember the function you mentioned is used to turn double buffering off and not on :)