how to convert IntPtr to Image in C#

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1.44/5 (3 votes)

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Hello Everyone.
i want to convert

C#

IntPtr

to

C#

Image

.

i have try this. but not given me a scan image.

C#

IntPtr img = (IntPtr) pics[ i ];
Bitmap _img = new Bitmap(2450, 2450, 2452, PixelFormat.Format32bppRgb, img)
pictureBox1.Image = _img;

Posted 3-Dec-15 20:36pm

aarif moh shaikh

Updated 6-Apr-19 17:34pm

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Sergey Alexandrovich Kryukov 4-Dec-15 3:01am

It's pretty apparent that you mean System.Drawing.Bitmap, but you need to provide full type name, to reduce confusion and greatly improve your chances of getting help.
—SA

2 solutions

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Sergey Alexandrovich Kryukov · Answer 1 · 2015-12-03T21:05:00

Talking about "conversion" here is incorrect; and, more importantly, we don't know what is pics. Most likely, type casting to IntPtr would be impractical absurd; this type is used for passing pointers to unmanaged memory or object handles.

But in essence, I can imagine that you have some data structures describing the color (or color+alpha) for each pixel, and you need to put this data in a bitmap. Then the answer is pretty obvious: https://msdn.microsoft.com/en-us/library/system.drawing.bitmap.lockbits%28v=vs.110%29.aspx[^].

You will find a complete code sample on the MSDN help page on one of these similar methods.

—SA

Komron Nouri · Answer 2 · 2019-04-06T17:35:00

Solution 2

System.Drawing.Image.FromHbitmap(IntPtr input)

Posted 6-Apr-19 17:35pm

Komron Nouri