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 How to create multipage ICO file?		  New Topic  Reply to Topic
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graph_man

328 Posts
Posted - Oct 11 2022 :  10:50:01  Show Profile  Reply
Hello,

If I use

ImageEnView1->IO->Params->ICO_ImageIndex = 0;
ImageEnView1->IO->SaveToFileICO(AllSaveDialog_FileName);

ImageEnView1->IO->Params->ICO_ImageIndex = 1;
ImageEnView1->IO->SaveToFileICO(AllSaveDialog_FileName);

I am getting a file with one page ONLY.

I would like to have a function like
InsertToFileICO

Is there another way?
Somehow ImageEnMView->MIO->SaveToFileICO creates a multi-page ICO file.

xequte

38608 Posts
Posted - Oct 11 2022 :  22:37:13  Show Profile  Reply
Sorry, can you clarify what you are wanting? Not a multi-page icon file?

Nigel
Xequte Software
www.imageen.com
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graph_man

328 Posts
Posted - Oct 12 2022 :  04:26:08  Show Profile  Reply
I want to create a multi-page icon file.
See my code.
When calling the SaveToFileICO function, ImageEnView1 contains different images.
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xequte

38608 Posts
Posted - Oct 12 2022 :  16:00:06  Show Profile  Reply
Hi

OK, so ImageEn, by default, will create an icon file with multiple icons using a single image, if you set the sizes:

https://www.imageen.com/help/TIOParams.ICO_Sizes.html

e.g.

// Save the current image as 'output.ico'. It will contain three images with 64x64 32bit (24bit + alphachannel), 32x32 256 colors and 32x32 16 colors

// 64 x 64 x 32bit
ImageEnView.IO.Params.ICO_BitCount[0] := 32;
ImageEnView.IO.Params.ICO_Sizes[0].cx := 64;
ImageEnView.IO.Params.ICO_Sizes[0].cy := 64;

// 32 x 32 x 8bit
ImageEnView.IO.Params.ICO_BitCount[1] := 8;
ImageEnView.IO.Params.ICO_Sizes[1].cx := 32;
ImageEnView.IO.Params.ICO_Sizes[1].cy := 32;

// 32 x 32 x 4bit
ImageEnView.IO.Params.ICO_BitCount[2] := 4;
ImageEnView.IO.Params.ICO_Sizes[2].cx := 32;
ImageEnView.IO.Params.ICO_Sizes[2].cy := 32;

// Specify end of images
ImageEnView.IO.Params.ICO_BitCount[3] := 0;
ImageEnView.IO.Params.ICO_Sizes[3].cx := 0;
ImageEnView.IO.Params.ICO_Sizes[3].cy := 0;

// Save
ImageEnView.IO.SaveToFile('D:\output.ico');



If you want to create an multi-page icon from your own set of images, either use a TImageEnmView/TIEMultiBitmap, or IEWriteICOImages:

https://www.imageen.com/help/IEWriteICOImages.html


Nigel
Xequte Software
www.imageen.com
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graph_man

328 Posts
Posted - Oct 13 2022 :  04:21:11  Show Profile  Reply
Your code shows how to create multiple pages from a single image.
As I wrote earlier, I need to create multipage ICO from different images.

How to use TIEMultiBitmap for this?

ps
Could you add InsertToFileICO function?
similar to other formats
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xequte

38608 Posts
Posted - Oct 16 2022 :  21:14:48  Show Profile  Reply
Hi

Unlike other multi-image formats, icon files are not intended to store different images, but rather different sizes and bit depths of the same image (so Windows can choose the best one for a particular usage). That is why ImageEn builds an icon file of multiple sizes using a single image.

If you want to create an icon file of all your own images, you can use:

// Create an icon file from ten source images
mbmp := TIEMultiBitmap.create;
for i := 0 to 9 do
  mbmp.AppendImage( format( 'D:\Source\Frame %d.bmp', [i] ));
mbmp.Write( 'D:\output.ico' );
mbmp.Free;


Nigel
Xequte Software
www.imageen.com
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graph_man

328 Posts
Posted - Oct 18 2022 :  16:45:02  Show Profile  Reply
Thanks
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