- HOW TO COMPRESS PICTURES INTO A ZIP FILE HOW TO
- HOW TO COMPRESS PICTURES INTO A ZIP FILE ZIP FILE
- HOW TO COMPRESS PICTURES INTO A ZIP FILE CODE
So wait a second and give //the zipping thread time to get started This means that it is possible that this console app //would end before the zipping thread //starts to execute which would cause the zip to never //occur and you will end up with just //an empty zip file. Ziping a file using the Windows Shell API //creates another thread where the zipping is executed. Shell32.FolderItems items = SrcFlder.Items() Shell32.Folder DestFlder = sc.NameSpace(args) Shell32.Folder SrcFlder = sc.NameSpace(args) Shell32.ShellClass sc = new Shell32.ShellClass()
HOW TO COMPRESS PICTURES INTO A ZIP FILE ZIP FILE
Copy a folder and its contents into the newly created zip file Create an empty zip file byte emptyzip = new byte In the References window, go to the COM tab and select the library labeled 'Microsoft Shell Controls and Automation'.
HOW TO COMPRESS PICTURES INTO A ZIP FILE CODE
To make this code work, you will also need to set a reference to a COM library.
This code as is will compress the Zip file, however it will also show the Copy Progress window. The destination folder points to the empty Zip file you just created. The source folder points to a folder you want to compress. Next I opened the empty Zip file in a hex editor (Visual Studio) and looked at the hex byte values and converted them to decimal with Windows Calc and copied those decimal values into my byte array code. Then I opened the Zip with Windows and deleted the compressed file. How did I know what bytes to put into the array? Well I just used Windows to create a Zip file with a single file compressed inside. To do this create a properly constructed byte array and then save that array as a file with a '.zip' extension.
HOW TO COMPRESS PICTURES INTO A ZIP FILE HOW TO
The following code shows how to use the Windows Shell API to compress a Zip file. Of course you could spend $300 on one of the commercial Zip components, but it's hard to beat free if all you need is to compress folder hierarchies. All you need is a way to programmatically get Windows to silently compress these Zip files. Windows Zipping can compress more than just individual files. you needed to compress folders and subfolders as well as files.
BackgroundĮver needed to compress Zip files and needed a better Zip than what comes with many of the free compression libraries out there? I.e. NET Process class being sure to set the process window style to ' Hidden'. To get around this, you move the Shell API code to a separate executable and then launch that executable using the. Normally when you use the Shell API to compress a Zip file, it will show a Copy Progress window even when you set the options to tell Windows not to show it.
With this code you can use the Windows Shell API in C# to compress Zip files and do so without having to show the Copy Progress window shown above. This is a follow up article to the one that I wrote about decompressing Zip files. Compress Zip files with Windows Shell API and C# / How To / C#
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