abmg@cathedral.cerc.wvu.wvnet.edu (Aliasghar Babadi) (10/18/90)
should pixmap depth be equal to the root window depth ? what if workstation has two root windows with different depth. Thanks for your comments.
etaylor@wilkins.iaims.bcm.tmc.edu (Eric Taylor) (10/19/90)
In article <921@babcock.cerc.wvu.wvnet.edu>, abmg@cathedral.cerc.wvu.wvnet.edu (Aliasghar Babadi) writes: |> |> should pixmap depth be equal to the root window depth ? |> what if workstation has two root windows with different depth. |> Thanks for your comments. |> |> A Pixmap's depth can be whatever its root supports. I am pretty sure that all X implementations accept pixmaps of depth 1 for use as BITMAPS. Since you have to tell a pixmap what its root window is, you simply have decide which root window you want to use. (presumably DefaultRootWindow(display)). -- Eric Taylor Baylor College of Medicine etaylor@wilkins.bmc.tmc.edu (713) 798-3776
klee@wsl.dec.com (Ken Lee) (10/19/90)
In article <921@babcock.cerc.wvu.wvnet.edu>, abmg@cathedral.cerc.wvu.wvnet.edu (Aliasghar Babadi) writes: |> |> should pixmap depth be equal to the root window depth ? |> what if workstation has two root windows with different depth. A pixmap must be created for a particular screen. It can have any depth supported by that screen. XGetVisualInfo will tell you what depths are supported. A depth of 1 is always supported. Others are optional. -- Ken Lee DEC Western Software Laboratory, Palo Alto, Calif. Internet: klee@wsl.dec.com uucp: uunet!decwrl!klee