Futurebasic/Language/Reference/def drawimagefile
DEF DRAWIMAGEFILE Statement edit
DEF DRAWIMAGEFILE edit
Statement edit
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Syntax edit
DEF DRAWIMAGEFILE ( fName$ , vRef% )
Revised edit
May 2001 (Release 5)
Description edit
You may use this statement to display a picture directly from disk. The picture can actually be too large to load into memory. You may determine the size of the picture in advance using DEF GETIMAGEFILERECT. The following example shows how to open a file and display it in a window.
Note edit
In order to use this routine, you must include the file named "Subs Image Files.Incl" as shown in the example below.
INCLUDE "Subs Image Files.Incl"
DIM fName$
DIM @vRef%
DIM r as rect
gFBUseNavServices = _ztrue
fName$ = FILES$(_fOpenPreview,,"Select a file to open", vRef%)
LONG IF fName$[0]
DEF GETIMAGEFILERECT(fName$,vRef%,r)
OFFSETRECT(r,-r.left,-r.top)
WINDOW 1,fName$,@r,_docNoGrow
DEF DRAWIMAGEFILE(fName$,vRef%)
END IF
PRINT @(1,1)"Click to exit"
DO
UNTIL FN BUTTON
See Also edit
DEF GETIMAGEFILERECT