Editing startSetPixel - FilterMeisterWiki

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= startSetPixel =

== Syntax ==
{{void startSetPixel(int ctl)}}

== Arguments ==
:'''ctl'''
::The control number of the Ownerdraw control on which you want to draw.

== Description ==
Call startSetPixel before drawing on an ((OWNERDRAW)) control to select which control you will be drawing on. Use ((setPixel)) to change individual pixels or any of the ((Control drawing)) functions to draw to the control. After finished drawing, you must call ((endSetPixel)) to display the drawn control to the screen.

== Example ==
<code>
%fml

ctl(1): OWNERDRAW(drawitem), Pos=(300,50), Size=(100, 100)

OnFilterStart: {

// Maximum X/Y pixel co-ords of ownerdraw
  int maxxpixel = HDBUsToPixels(100)-1;
  int maxYpixel = VDBUsToPixels(100)-1;

// Start using setPixel drawing on OWNERDRAW control 1
  startSetPixel(1);

// Draw rectangle around OWNERDRAW area
  setLine(0, 0, maxxpixel, 0, RGB(0,0,0));
  setLine(0, 0, 0, maxYpixel, RGB(0,0,0));
  setLine(maxxpixel, 0, maxxpixel, maxYpixel, RGB(0,0,0));
  setLine(0, maxYpixel, maxxpixel, maxYpixel, RGB(0,0,0));

// Fill a Rectangle in the OWNERDRAW set-pixel area
  setRectFill(10, 20, 30, 40, RGB(255, 0, 0));

// Stop using setPixel drawing
  endSetPixel(1);

return true;
}
</code>

== See Also ==
((endSetPixel)), ((setPixel)), ((setRectFill))

== Comments ==
Everyone can add their comments about their experiences with this function here. Tips for using it are welcome, too.

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