It took a while Sidharta.:)
Depends how fast you mean by realtime? The chart in the picture takes around
70ms on my p4 3.2ghz.
The only real bottleneck is the GDI drawing so performance is almost entirely
dependent on how much is being rendered.
If you turn "Display chart timing on" in Preferences->Miscellaneous, the
following code should give you an idea of the cost of rendering. You'll see
it's highly variable.
GfxSelectFont("", 8, 400);
GfxSetBkMode(1);
rows = Param("Rows", 50, 0, 500);
Cols = Param("Cols", 50, 0, 500);
showText = ParamToggle("Show Text", "No|Yes");
fastText = ParamToggle("Fast Text", "No|Yes");
switchColors = ParamToggle("Switch Colors", "No|Yes");
bswitch = True;
cellHeight = Status("pxchartheight") / rows;
cellWidth = Status("pxchartwidth") / Cols;
for (row=0; row<rows; row++){
y = row * cellHeight;
for (Col=0; Col<Cols; Col++){
x = Col*CellWidth;
if (switchColors){
bswitch = !bswitch;
if (bswitch)
GfxSelectSolidBrush(colorLightBlue);
else
GfxSelectSolidBrush(colorLightOrange);
}
GfxRectangle(x, y, x+CellWidth, y+CellHeight);
if (showText){
if (fastText)
GfxTextOut("blah", x, y);
else
GfxDrawText("blah", x, y, x+CellWidth,
y+CellHeight);
}
}
}
--- In [email protected], "sidhartha70" <sidharth...@...> wrote:
>
> Jules, out of interest 2 questions if I can...
>
> 1. How long did it take you to write...?
> 2. Does it run fast enough to be fully operational in real time trading...?
>
> Thanks
>
> --- In [email protected], "jooleanlogic" <juliangoodsell@> wrote:
> >
> > Thanks. Yes I'm aware of Market Delta and yes, c++ and gfx.
> >
>
