Re: [GM-help] Magick++ equivalent of C api's MagickGetImagePixels

[Jeremy R. <rot...@hs...>]

After going over the the write method, I am a bit confused on how you 
get the storage type for the image.

Here is the current code that I am using. When I try to compile I get 
the following error , CharPixel was not defined in this scope, but per 
the api it states that the storagetype is defined in DispatchImage. Is 
there something I am missing?
image.write(0, 0, width, height, "RGB", CharPixel, pxl);


Bob Friesenhahn wrote:
> On Fri, 3 Apr 2009, Jeremy Rottman wrote:
>>
>> pxl = (unsigned char *)malloc(3 * width * height * sizeof(unsigned 
>> char));
>> success = MagickGetImagePixels(wand, 0, 0, width, height, "RGB",
>> CharPixel, pxl);
>>
>> Is there currently an equivalent of the MagickGetImagePixels method in
>> the Magick++ api? Any help with this is greatly appreciated.
>
> See the last 'write' method listed at
>
> http://www.graphicsmagick.org/Magick++/Image.html#read-or-write-an-image
>
>
> Write single image frame to an array of pixels with storage type 
> specified by user (DispatchImage), e.g. image.write( 0, 0, 640, 1, 
> "RGB", 0, pixels ):
>
> void write ( const int x_,
> const int y_,
> const unsigned int columns_,
> const unsigned int rows_,
> const std::string& map_,
> const StorageType type_,
> void *pixels_ )
>
>
> Bob
> -- 
> Bob Friesenhahn
> bfr...@si..., 
> http://www.simplesystems.org/users/bfriesen/
> GraphicsMagick Maintainer, http://www.GraphicsMagick.org/
>