ImagePut - A core library for images in AutoHotkey (Now supports HEIC & WEBP)

[AHK_user]

Can somebody explain me how you can get the Base64 of an HIcon ?
Preferably by inputting an exe or a window to copy their Icon to a base64 string.

I once managed to get the icon of notepad, but cannot remember how I got the Base64 of the Icon.

Code: Select all

base64 := "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"
newIcon := ImagePutHIcon(base64)
TraySetIcon("HICON:" . newIcon)
Gui().Show("h100 w300")

[wind0204]

Hello, guys.

I'd like to allow ImageSearchAll function to have tolerance(variation) in each pixel comparison, but do not know how to get the Base64 encoded code to DllCall in Autohotkey.

Does anybody know and can tell me how to produce the Base64 encoded code for a C function?

Thanks in advance!

Code: Select all

@@ -1,4 +1,4 @@
-unsigned int * imagesearch(unsigned int * start, unsigned int width, unsigned int height, unsigned int * s, unsigned int w, unsigned int h) 
>+unsigned int * imagesearch(unsigned int * start, unsigned int width, unsigned int height, unsigned int * s, unsigned int w, unsigned int , unsigned int variation) {
     // width, height, start, current, end refer to the haystack (main image)
     // x, y, w, h, s, c, e refer to the needle (search image)
 
@@ -35,7 +35,7 @@
                 e = c + w;
                 while (c < e) {
                     if (*((unsigned char *) c + 3)) { // skip transparent pixels in search image
-                        if (*c != *p)
+                        if (*c - *p > variation && *c - *p < (0 - variation))
                             goto next;
                     }
                     c++; // Here simply incrementing will interate the entire image

[wind0204]

Can somebody explain me how you can get the Base64 of an HIcon ?
Preferably by inputting an exe or a window to copy their Icon to a base64 string.

@AHK_user, it seems like https://www.autohotkey.com/docs/v2/lib/LoadPicture.htm can be set to output the handle to an icon via &OutImageType parameter.

And one of the input types allowed for ImagePut functions is hIcon according to https://github.com/iseahound/ImagePut/wiki/Input-Types-&-Output-Functions#input-types

Have you tried using the above with ImagePutBase64? ( https://github.com/iseahound/ImagePut/wiki/Input-Types-&-Output-Functions#imageputbase64image-extension-quality )

[wind0204]

I've received the answer here: https://github.com/iseahound/ImagePut/discussions/34

Hello, guys.

I'd like to allow ImageSearchAll function to have tolerance(variation) in each pixel comparison, but do not know how to get the Base64 encoded code to DllCall in Autohotkey.

Does anybody know and can tell me how to produce the Base64 encoded code for a C function?

Thanks in advance!

[william_ahk]

I'm tempting to migrate one of my projects from tic's Gdip to ImagePut. I need to pass an image to the SQLite database as blob. Can ImagePut add support for this?

[iseahound]

What is a SQL blob? If it's binary data ImagePut should already support that

[william_ahk]

Yes it's binary data. Which type corresponds to binary in ImagePut? The closest I found is hex but that's the string representation.
I was doing it this way and didn't find similar code in ImagePut.
viewtopic.php?f=76&t=124137#p551913

[iseahound]

This would generally fall under ImagePutStream. You would then call:

Code: Select all

DllCall("ole32\GetHGlobalFromStream", "ptr",pStream, "uint*",hData)
	pData := DllCall("GlobalLock", "ptr",hData, "ptr")
	nSize := DllCall("GlobalSize", "uint",pData) 

to get the pointer and the size.

I suppose because AutoHotkey supports buffer objects, it would be more useful to you if I returned a Buffer containing the encoded image along with Ptr and Size. What would you call this function however? It can't be ImagePutBlob because that's SQL specific, but I'm not convinced of ImagePutBinary either. Trying to minimize confusion between the already existing ImagePutBuffer and this.

Edit: Another option is to return an array of [pointer, size]


Thoughts on names?

[iseahound]

ImagePutHex - Returns a hexadecimal string.
ImagePutBase64 - Returns a base64 string.

This implies ImagePutBinary returns a string like "010100010111000010101", which isn't the case.

ImagePutMemory?
ImagePutStreamBuffer?
ImagePutEncodedBuffer?

idk.

[iseahound]

Another thought: A pointer to a stream can be cast to a Stream COM object (?) via query interface or ComObjQuery. This "wraps" (possibly wrong word, Lexikos would hate me for this) the Stream pointer into a com object which should (???) support ptr and size in a more native fashion. I'll double check, and if it doesn't, I'll map all of the stream methods as well.

Basically you'd get all of this:
https://github.com/iseahound/10/blob/1e47ab6205f4312e4b998ddb154756a28771dcca/10.0.10240.0/um/ObjIdlbase.h#L2307

And a better .size in case the size of the stream changes.

[william_ahk]

If we're going for a separate function, I suppose EncodedBuffer makes more sense contextually as there are encoded hex, base64, and then buffer. But I think Binary is more widely accepted in AHK? Maybe implement both the string and memory binary as Bin and Binary to sort out the potential confusion.

A Stream COM object sounds like what a blob does, would be fantastic if it's possible.

[Jescoimea]

How do you handle image encoding in your AutoHotkey projects, and have you considered using ImagePut for managing icons and binary data?

[iseahound]

I'm not sure if I understand your question. I assume you're asking about JPG / PNG etc. ImagePut will choose the fastest route for conversions. In the case a JPG is input, and the output "type" supports JPG, then no decoding will be done. This is the case for "cats.jpg" → base64 string. It would not be the case for ImagePutWindow, which must decode the JPG format into pixels to show on the screen.

To disable this "fast track" and force decoding of image formats into pixels set decode to True.

See: https://github.com/iseahound/ImagePut/wiki/Crop,-Scale,-&-Other-Flags#decode

[Descolada]

@iseahound, I have a feature request: allow object-type inputs with a ptr property. For example, I'd like to use the following format with my Media library:

Code: Select all

#Requires AutoHotkey v2
#include Media.ahk
#include ImagePut.ahk
thumbnail := Media.GetCurrentSession().Thumbnail
ImagePutClipboard(thumbnail)

instead of manually specifying thumbnail.ptr. Currently this throws a "This value of type "Media.IBase" has no property named "__Item"." error.

[iseahound]

Oh I see.

[iseahound]

@Descolada Latest version should work now. Let me know if you run into any bugs, these types of changes are hard to test. Also, this may be controversial, but I changed the logic to use gotos.

EDIT: Fixed a bug where Notepad changed my unicode characters into "?"

[Descolada]

Thanks, working as expected!

[iseahound]

@william_ahk Can you experiment with the latest version using ImagePutEncodedBuffer? You will obviously have to use buf.ptr on AutoHotkey v1, and it should operate like a normal buffer object on v2. Feel free to "construct" a buffer via {ptr: ptr, size: size} as well. https://github.com/iseahound/ImagePut

Code: Select all

buf := ImagePutEncodedBuffer("cats.jpg")
imageshow(buf)
buf := ""

buf := ImagePutEncodedBuffer([0, 0, 500, 500])
imageshow(buf)
buf := ""

[william_ahk]

@iseahound Just tested. Works great!

[iseahound]

Nice to hear. In case anyone was wondering, the latest update searches the first few bytes of the buffer object (ptr and size) for magic numbers that might indicate if it was a png or a gif. If not, it then looks to see if the buffer object has a width or pitch/stride or height property, and it assumes that the binary data describes a 32bpp ARGB image. Finally, if that doesn't work, it tests the pointer to see if it's a known com object such as an IStream or a IWICBitmap.

I've been meaning to release ImagePut v1.11 with all the newer changes described, bit it may take some more time to iron out any remaining inconsistencies.