gdip related - how to "remove" the transparency region of an image ?

[mitchneal]

Hi there and Happy New Year.

FYI : I've used ahk since 2016 and lost my old ahk forum account

My situation : I have an image on the clipboard, make a graphic with white background already. But when I paste it there, the transparency region doesn't preserve my white background. Is there anyway to create a new "layer" / bipmap and then merge two layers like photoshop ?

Thanks !

[trust_me]

yes it was quite easy ( if you already use gdip .... ? ), you can take a look at the examples for gdip here (example 6 is close for what you want to do:

https://www.autohotkey.com/boards/viewtopic.php?t=6517

to get the bitmap from clipboard:
pBitmap :=Gdip_CreateBitmapFromClipboard()

[mitchneal]

yes it was quite easy ( if you already use gdip .... ? ), you can take a look at the examples for gdip here (example 6 is close for what you want to do:

https://www.autohotkey.com/boards/viewtopic.php?t=6517

to get the bitmap from clipboard:
pBitmap :=Gdip_CreateBitmapFromClipboard()

thanks for the answer bro...

however, my problem is with the transparency of image.

In the example 6, Gdip_CreateBitmapFromFile(file1) can make a Bitmap with transparency.

But the Gdip_CreateBitmapFromClipboard doesn't recognize the transparency ... it must be something wrong with gdip !