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Uncommon Knowledge - WC_Vprev%The Vspace image for the screen as it was before the window was invoked. Note that although this is nearly identical to a Video.Rw image variable it cannot be used without some pre-processing as each VSPACE image contains a 25 byte header block. If it is desired to redisplay the background using the VPrev variable one would use a section of code similar to the following. 0001 Subroutine Display_VPrev 0002 $Insert Include, Window_Common% 0003 Declare Function Video.Rw 0004 CrtW = Seq(WC_VPrev%[3,1] - 1 0005 CrtH = Seq(WC_VPrev%[5,1]) - 1 0006 Img = WC_Prev%[26,10000] 0007 OK = Video.Rw(0, 0, CrtW, CrtH, "W", Img) 0008 Return (Volume 3, Issue 10, Page 14) |
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