How to change compress bitwindow for zlib?

[jozhn]

I did not find the way to control compress options but only compress level. But I need to change the wbits of zlib compress.

[piksel]

What do you mean by "zlib"? SharpZipLib does not use zlib. The DeflaterEngine uses a constant window:

SharpZipLib/src/ICSharpCode.SharpZipLib/Zip/Compression/DeflaterEngine.cs

Line 87 in 519ed73

window = new byte[2 * DeflaterConstants.WSIZE];

SharpZipLib/src/ICSharpCode.SharpZipLib/Zip/Compression/DeflaterConstants.cs

Lines 51 to 59 in 519ed73

	/// <summary>
	/// Internal compression engine constant
	/// </summary>
	public const int MAX_WBITS = 15;
	/// <summary>
	/// Internal compression engine constant
	/// </summary>
	public const int WSIZE = 1 << MAX_WBITS;

Not sure if another size could even be used without breaking zip spec...