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Usage: cmdgfx [operations] [flags] [fgpalette] [bgpalette]

Drawing operations (separated by &):

poly     fgcol bgcol char x1,y1,x2,y2,x3,y3[,x4,y4...,y24]
ipoly    fgcol bgcol char bitop x1,y1,x2,y2,x3,y3[,x4,y4...,y24]
gpoly    palette x1,y1,c1,x2,y2,c2,x3,y3,c3[,x4,y4,c4...,c24]
tpoly    image [-]fgcol [-]bgcol char transpchar/transpcol x1,y1,tx1,ty1,x2,y2,tx2,ty2,x3,y3,tx3,ty3[...,ty24]
image    image [-]fgcol [-]bgcol char transpchar/transpcol x,y [xflip] [yflip] [w h]
box      fgcol bgcol char x,y,w,h
fbox     fgcol bgcol char x,y,w,h
line     fgcol bgcol char x1,y1,x2,y2 [bezierPx1,bPy1[,...,bPx6,bPy6]]
pixel    fgcol bgcol char x,y
circle   fgcol bgcol char x,y,r
fcircle  fgcol bgcol char x,y,r
ellipse  fgcol bgcol char x,y,rx,ry
fellipse fgcol bgcol char x,y,rx,ry
text     fgcol bgcol char string x,y
block    mode[:1233] x,y,w,h x2,y2[,w2,h2[,rz]] [transpchar] [xflip] [yflip] [transform] [colExpr] [xExpr yExpr] [to|from] [mvx,mvy,mvw,mvh]
3d       objectfile drawmode,drawoption[,tex_offset,tey_offset,tex_scale,tey_scale] rx[:rx2],ry[:ry2],rz[:rz2] tx[:tx2],ty[:ty2],tz[:tz2] scalex,scaley,scalez,xmod,ymod,zmod face_culling,z_culling_near,z_culling_far,z_sort_levels xpos,ypos,distance,aspect fgcol1 bgcol1 char1 [...fgcol32 bgcol32 char32]
insert   file
skip
rem

Fgcol and bgcol can be specified either as decimal or hex.
Char is specified either as a char or a two-digit hexadecimal ASCII code.
For both char and fgcol+bgcol, specify ? to use existing.
Bitop: 0=Normal, 1=Or, 2=And, 3=Xor, 4=Add, 5=Sub, 6=Sub-n, 7=Normal ipoly.

Image: 256 color pcx file (first 16 colors used), or gxy file, or text file.
If a pcx file is used, transpcol should be specified, otherwise transpchar. Always set transp to -1 if transparency is not needed!

Gpoly palette follows '1233,' repeated, 1=fgcol, 2=bgcol, 3=char (all in hex).
Transform follows '1233=1233,' repeated, ?/x/- supported. Mode 0=copy, 1=move

String for text op has all _ replaced with ' '. Supports a subset of gxy codes.

Objectfile should point to either a plg, ply or obj file.
Drawmode: 0 for flat/texture, 1 for flat z-sourced, 2 for goraud-shaded z-sourced, 3 for wireframe, 4 for flat,  5=persp. correct texture/flat, 6=affine char/persp. correct color.
Drawoption: Mode 0 textured=transpchar/transpcol(-1 if not used!). Mode 0/4 flat=bitop. Mode 1/2: 0=static col, 1=even col. Mode 2: put bitop in high byte.

[flags]: 'p' preserve buffer content, 'k' return code of last keypress, 'K' wait and return key, 'e/E' suppress/pause errors,
         'wn/Wn' wait/await n ms, 'M/m[wait]' return key/mouse bit pattern(see mouse examples), 'u' report key-up events for M/m,
          'Zn' set projection depth, 'n' no output, 'o/O' write (/active) errorlevel to EL.dat, 'z' sleeping wait, 'S' run as server.