VB6 ImageCaching and -Animation (using a single Resource-File for storage)

[Schmidt]

Just a Demo which applies the cGDIPlusCache-Class (as intended, as a Drop-In-Module).

The original CodeBank-entry for cGDIPlusCache is here: https://www.vbforums.com/showthread....-cls-revisited

cGDIPlusCache (as included in this Demo) was enhanced about two new Methods:

• SaveCacheToImgStore(StoreFileName As String)
• ReadCacheFromImgStore(StoreFileName As String)

When run in IDE-Mode, the Demo will populate the GC-CacheObject directly from a \Res\-Subfolder -
(via GC-Add... Methods which in this case load PNGs, JPGs or GIFs directly from the FileSystem)

When the MainForm unloads (in IDE-Mode), then one of the new Methods is used:

• GC.SaveCacheToImgStore App.Path & "\ImageCache.gc"

So that, when the Demo runs compiled, it will ignore the Files in the \Res\-Subfolder (so no need to deploy it) -
and instead loads the GC-Objects Cache-Content from a single File via:

• GC.ReadCacheFromImgStore App.Path & "\ImageCache.gc"

The whole User-Code (aside from the dropped-in cGDIPlusCache.cls-File) -
sits in a single Form (with only about 25 Lines).

That's enough to ensure a Checker-BackGround and two Animations (one from a GIF, another one from a "PNG-stripe").


Ok, here is the Zip: ImageCaching.zip

Have fun,

Olaf

[wwolf]

Just a Demo which applies the cGDIPlusCache-Class (as intended, as a Drop-In-Module).

Ineresting! But it reminds me a lot of my concept with the cWebArchive class:

    Set htmlRes = New_c.WebArchive
    With htmlRes
        If App.LogMode = 0 Then
            .ReadContentsFromDirectory APP_PATH & "\Res\"
            .SaveContentsToArchiveFile APP_PATH & "\Res.war"
        Else
            .ReadContentsFromArchiveFile APP_PATH & "\Res.war"
        End If
    End With

I use this in my WebView2 projects. In IDE mode, I can edit the HTML templates and load them from the Res folder (incl. edit&continue). In compiled mode, this data is in the *.war file supplied. This applies to all possible file types and works fine.

Different *.war files can also be included for different languages.

W. Wolf

[Schmidt]

Ineresting! But it reminds me a lot of my concept with the cWebArchive class:

Yes, the approach is quite similar to the cWebArchive-based resource-handling.
FWIW, here is another (RC6-based) one, which follows the same basic principle:
https://www.vbforums.com/showthread....ontainer-Files

The difference with the demo here is, that RC5 or RC6 are not required...

Olaf