How to download canvas files api

Check memory — see Experiment with Large Arrays. At a minimum, build a list of expected inputs and outputs, or create a full test suite. Use these tests to compare the results with the updated source code.

The results should be identical. To handle large arrays, convert variables containing array indices or sizes to use the mwSize and mwIndex types instead of the bit int type. Review your code to see if it contains the following types of variables:.

Search for the variables that you use to call the functions. Check the function signature, shown under the Syntax heading on the function reference documentation. Change your variables to use the correct type. For example, suppose that your code uses the mxCreateDoubleMatrix function, as shown in the following statements:. The type for input arguments m and n is mwSize. Change your code as shown in the table. For example, the following code declares the inputs to mxCreateDoubleMatrix as type mwSize :.

This example uses the intermediate variable, numDataPoints of type int , to calculate the value of ncolumns. If you copy a bit value from nrows into the bit variable, numDataPoints , the resulting value truncates. Your MEX file could crash or produce incorrect results. Use type mwSize for numDataPoints , as shown in the following table. You do not need to change every integer variable in your code. For example, field numbers in structures and status codes are of type int.

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Still, good to know. Thanks for sharing. Sadi Sadi 3 3 silver badges 6 6 bronze badges. Please add a short explanation to your answer, in order to make it relevant for the person who asked it — AGE. Yeah, this answer deserves to be the best one! The missing part for me was the "cleanUrl" thing, which was generating malformed data and breaking the file.

Also keep in mind that in case that you pass a string containing dot s as a value of first argument to the function contained in the downloadImage constant, the downloaded images will be corrupted on operating systems such as Windows since the file extension won't be appended to the filename and therefore system won't be able to recognize how to open that file.

Consequently, it may be better to set the value of download field to the object contained in link variable without ternary operator: link.

You saved my day! I tired it, and didn't worked for me. Petr Tripolsky Petr Tripolsky 9 9 silver badges 20 20 bronze badges. Too cumbersome code. There are more elegant solutions above. Also - what if it was not an image but a video? Muhammad Awais Muhammad Awais 3, 1 1 gold badge 36 36 silver badges 34 34 bronze badges.

Create a function that recibe the image url and file name and call the funcion using a button. Vladimir Salguero Vladimir Salguero 4, 2 2 gold badges 37 37 silver badges 42 42 bronze badges.

I'm not sure why. You can also use this technique to set the filename at the same time. Mufasa Mufasa 74 3 3 bronze badges. It isn't something that would work in any other environment unless it was specifically set up that way.

What about using the. Poisonous Whisper Poisonous Whisper 1 3 3 bronze badges. A link to the image will only open the image in the same window, unless your browser is configured differently.

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