iOS Imagemagick在iPhone中应用边框颜色

Question

I have successfully ported ImageMagick in my iPhone Application, everything seems to be working. I need to apply one filter for border color. I have written using Pixelwand, however its not been showing border color. Below is my code.

PixelWand *color = NewPixelWand();
PixelSetColor(color, "PixelGetMagenta");
status = MagickSetImageBorderColor(magick_wand, color);

What I am doing wrong?

Answer 1

PixelSetColor's second parameter is expecting color name, not a method name. Example "magenta", "#FF00FF", or "rgb(255,0,255)". The MagickBooleanType would return MagickFalse when calling PixelSetColor(color, "PixelGetMagenta"); , as setting a color named "PixeGetMagenta" would fail. PixelGetMagenta is usally used with PixelGetMagentaQuantum when working directly with color packets.

MagickBooleanType status;
PixelWand *color = NewPixelWand();
status = PixelSetColor(color, "magenta");
// Error handle if status == MagickFalse
status = MagickSetImageBorderColor(magick_wand, color);
// Error handle if status == MagickFalse
status = MagickBorderImage(wand,color,10,10);
// Error handle if status == MagickFalse