How to set color for bitmap before rendering?

[aeris170]

I'm rendering an SVG with the example code yoou provided and it works great, but I would like to alter the output color of the rendered SVG. Is this possible? I'd expect something along the lines of:

auto document = Document::loadFromFile(filename);
auto bitmap = document->renderToBitmap(width, height, fgColor, bgColor);

[sammycage]

I don't understand? What did you mean by fgColor(foreground color)?

[aeris170]

I don't understand? What did you mean by fgColor(foreground color)?

I would like to change the color of rendered bitmap image. I have my SVG's as black on top of transparent, is it possible to render them with a different color? Like, red or white or blue?

[sammycage]

is it possible to render them with a different color? Like, red or white or blue?

Yes.. backgroundColor the third parameter in Document::renderToBitmap is there for you.

Bitmap renderToBitmap(std::uint32_t width = 0, std::uint32_t height = 0, std::uint32_t backgroundColor = 0x00000000) const;

backgroundColor format is 0xRRGGBBAA

Name	HexCode	BackgroundColor
Red	#FF0000	0xFF0000FF
Breen	#00FF00	0x00FF00FF
Blue	#0000FF	0x0000FFFF
Yellow	#FFFF00	0xFFFF00FF
White	#FFFFFF	0xFFFFFFFF
Pink	#FFC0CB	0xFFC0CBFF

Example

• Green circle with 80px radius and transparent black background

<svg id="svg1" viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg">
    <circle id="circle1" cx="100" cy="100" r="80" fill="green"/>
</svg>

• Render the circle with yellow background color

auto bitmap = document->renderToBitmap(0, 0, 0xFFFF00FF);

• Render the circle with red background color

auto bitmap = document->renderToBitmap(0, 0, 0xFF0000FF);

• Render the circle with pink background color

auto bitmap = document->renderToBitmap(0, 0, 0xFFC0CBFF);

[aeris170]

I understand, my initial question was probably not well formulated. I wanted to change the color of "green circle" in the example you provided. Now I see how I can. Since SVG are just markup (I just discovered this, thanks to you), I can loop every every child of