How do you use DwmGetColorizationColor
?
The documentation says it returns two values:
- a 32-bit
0xAARRGGBB
containing the color used for glass composition
- a boolean parameter that is true "if the color is an opaque blend" (whatever that means)
Here's a color that i like, a nice puke green:
You can notice the color is greeny, and the translucent title bar (against a white background) shows the snot color very clearly:
i try to get the color from Windows:
DwmGetColorizationColor(dwCcolorization, bIsOpaqueBlend);
And i get
dwColorization: 0x0D0A0F04
bIsOpaqueBlend: false
According to the documentation this value is of the format AARRGGBB
, and so contains:
AA: 0x0D (13)
RR: 0x0A (10)
GG: 0x0F (15)
BB: 0x04 (4)
This supposedly means that the color is (10, 15, 4), with an opacity of ~5.1%.
But if you actually look at this RGB value, it's nowhere near my desired snot green. Here is
- (10, 15, 4) with zero opacity (the original color), and
- (10,15,4) with 5% opacity against a white/checkerboard background:
Rather than being Lime
green, DwmGetColorizationColor
returns an almost fully transparent black.
So the question is: How to get glass color in Windows Vista/7?
i tried using DwmGetColorizationColor
, but that doesn't work very well.
A person with same problem, but a nicer shiny picture to attract you squirrels:
So, it boils down to –
DwmGetColorizationColor is completely
unusable for applications attempting
to apply the current color onto an
opaque surface.
i love this guy's screenshots much better than mine. Using his screenshots as a template, i made up a few more sparklies:
For the last two screenshots, the alpha blended chip is a true partially transparent PNG, blending to your browser's background. Cool! (i'm such a geek)
Edit 2: Had to arrange them in rainbow color. (i'm such a geek)
Edit 3: Well now i of course have to add Yellow.
Undocumented/Unsupported/Fragile Workarounds
There is an undocumented export from DwmApi.dll
at entry point 137, which we'll call DwmGetColorizationParameters
:
HRESULT GetColorizationParameters_Undocumented(out DWMCOLORIZATIONPARAMS params);
struct DWMCOLORIZATIONPARAMS
{
public UInt32 ColorizationColor;
public UInt32 ColorizationAfterglow;
public UInt32 ColorizationColorBalance;
public UInt32 ColorizationAfterglowBalance;
public UInt32 ColorizationBlurBalance;
public UInt32 ColorizationGlassReflectionIntensity;
public UInt32 ColorizationOpaqueBlend;
}
We're interested in the first parameter: ColorizationColor
.
We can also read the value out of the registry:
HKEY_CURRENT_USERSoftwareMicrosoftWindowsDWM
ColorizationColor: REG_DWORD = 0x6614A600
So you pick your poison of creating appcompat issues. You can
See also
i've been wanting to ask this question for over a year now. i always knew that it's impossible to answer, and that the only way to get anyone to actually pay attention is to have colorful screenshots; developers are attracted to shiny things. But on the downside it means i had to put all kinds of work into making the lures.
Question&Answers:
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