mercurio@crash.CTS.COM (Phil Mercurio) (08/02/87)
[-] I'm having difficulty getting QBSBlit(), which is supposed to queue a blitter function so that it occurs after the video beam has passed a specified scan line, to work. QBSBlit() takes as its argument a bltnode structure, which contains two shorts, "blitsize" and "beamsync", which are not described in the documentation. "blitsize" is not even mentioned, while "beamsync" is described as being the value of VBEAM when the beam is at the desired position, but VBEAM isn't described anywhere (including the hardware manual). My call to QBSBlit() is working (the blitter function is being called), but it occurs at a random scan line. Can anyone who's gotten this to work give me some hints? Thanks in advance, Phil Mercurio DevWare, Inc. mercurio@pnet01.CTS.COM