Legacy ImageMagick Discussions Archive

Yes it would be better if delegate processes would be created without console/window in general to avoid such things.
Otherwise there is always the danger that funny codecs create popup windows.
It would be great if that could be changed in one of the future versions of ImageMagick.

Nobody knows an answer? If it is currently not possible with IM could we expect this feature in one of the future versions?

if ReadImage is called on a video file, an FFmpeg console window pops up.
Library functions in general should not display such things.
Is this a bug?

Thanks for reply! The Image structure includes an orientation member. Check image->orientation. If its not reporting correctly let us know and we will add a patch to the Subversion trunk. the orientation of the image the StreamHAndler gets passed seem to be always zero, whether it's a bitmap or not....

I got it working now, seems one cannot create function pointers from managed classes, so I use a native class now which I call from my managed class. Not I have another problem. Some image formats like Microsoft Bitmap store the rows from bottom to top instead of top to bottom. How can my code know ...

I have the following given: size_t ImageLdr::MyStreamHandler(const MagickLib::Image *image,const void *pixels, const size_t columns) { } Now I want to call ReadStream in my code: MagickLib::Image* img = ReadStream(&imageinfo,&ImageLdr::MyStreamHandler,&ex); But the compiler tells me &quo...

Thanks for trying to help me, but I'm using the C-Interface, not the command line tools. I've read about the ReadStream function, could I use this to stop reading if a certain number of pixels are reached? Generelly, I find it very hard to find the required functionality and understand how things wo...

I believe it is trying to load *all* frames of the wmv file into an imagelist.
Can I somehow specify that it just should load the first frame?

I tried

convert -limit memory 5mb -limit map 5mb -limit disk 5mb -size 1000x1000 xc:none null: *.wmv test.png

and my windows swapping file kept growing and growing untile I cancelled the process.

Iam using ImageMagick-6.4.9-Q8, its changelog says revision is 6.4.9-2.

I programmed an Explorer like Application which shows thumbsnails of all image files. The problem is that imagemagick tries to open some files which are not really images so it generated lots of temporary files. I tried to limit the resources to 10 megabytes but it doesn't seem to change anything: S...

I want to display to the user the uncompressed size of an Image. If there isn't such a method, is there any way to get the bits-per-pixel of an Image? There is a method GetDepth() but then I do need to know how many components make up a pixel, also, the depth may not be equal in all components? So I...

OK, thank you I'll give it a try..

If you mean with "file" the linux command.. I program for windows so I can't use that. Even if the "file" command determines that a given file is an Image doesn't give me any guarantee that it is supported by imagemagick and also the file command may not know all of the types sup...

Thank you very much, this is exactly what I was looking for!

PingImage does exactly the same thing as ReadImage; it tests wheather a given file is an Image, and if it is then it reads Imageinformation, and in case of Readimage the pixels. I tested it, the have exactly the same performance when called on non-image files. Isn't there any way to query the suppor...