Dotnet-api-docs: "// Set every third value to 255. A 24bpp bitmap will look red." ?

[vargonian]

If it's R-G-B, and you set every third value to 255, woudn't the image look Blue instead since you're maximizing the B component?

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Document Details

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• ID: db2910e8-eec8-8481-4e6c-5b6ae92b4ec2
• Version Independent ID: 86aadb11-92ea-2fbe-c511-c310b68a24c0
• Content: Bitmap.LockBits Method (System.Drawing)
• Content Source: xml/System.Drawing/Bitmap.xml
• Product: dotnet-api
• GitHub Login: @dotnet-bot
• Microsoft Alias: dotnetcontent

[diraven]

What I discovered is the order of bits is actually the opposite for Format32bppArgb - BGRA. So I suspect the same goes for 32bpp, it will be BGR, not RGB.

[diraven]

Related discussion: https://stackoverflow.com/questions/8104461/pixelformat-format32bppargb-seems-to-have-wrong-byte-order

[SreenikethanI]

I think this issue can be now closed.

[vargonian]

Okay, I will take your word that the byte order is reversed, but I'd like to see this documented explicitly to avoid future confusion.

[mairaw]

Reopening so we can investigate whether to document this or not.