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@ysc3839
Last active May 15, 2023 14:39
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HMODULE hUser = GetModuleHandleA("user32.dll");
if (hUser)
{
pfnSetWindowCompositionAttribute setWindowCompositionAttribute = (pfnSetWindowCompositionAttribute)GetProcAddress(hUser, "SetWindowCompositionAttribute");
if (setWindowCompositionAttribute)
{
ACCENT_POLICY accent = { ACCENT_ENABLE_BLURBEHIND, 0, 0, 0 };
WINDOWCOMPOSITIONATTRIBDATA data;
data.Attrib = WCA_ACCENT_POLICY;
data.pvData = &accent;
data.cbData = sizeof(accent);
setWindowCompositionAttribute(hWnd, &data);
}
}
#pragma once
typedef enum _WINDOWCOMPOSITIONATTRIB
{
WCA_UNDEFINED = 0,
WCA_NCRENDERING_ENABLED = 1,
WCA_NCRENDERING_POLICY = 2,
WCA_TRANSITIONS_FORCEDISABLED = 3,
WCA_ALLOW_NCPAINT = 4,
WCA_CAPTION_BUTTON_BOUNDS = 5,
WCA_NONCLIENT_RTL_LAYOUT = 6,
WCA_FORCE_ICONIC_REPRESENTATION = 7,
WCA_EXTENDED_FRAME_BOUNDS = 8,
WCA_HAS_ICONIC_BITMAP = 9,
WCA_THEME_ATTRIBUTES = 10,
WCA_NCRENDERING_EXILED = 11,
WCA_NCADORNMENTINFO = 12,
WCA_EXCLUDED_FROM_LIVEPREVIEW = 13,
WCA_VIDEO_OVERLAY_ACTIVE = 14,
WCA_FORCE_ACTIVEWINDOW_APPEARANCE = 15,
WCA_DISALLOW_PEEK = 16,
WCA_CLOAK = 17,
WCA_CLOAKED = 18,
WCA_ACCENT_POLICY = 19,
WCA_FREEZE_REPRESENTATION = 20,
WCA_EVER_UNCLOAKED = 21,
WCA_VISUAL_OWNER = 22,
WCA_HOLOGRAPHIC = 23,
WCA_EXCLUDED_FROM_DDA = 24,
WCA_PASSIVEUPDATEMODE = 25,
WCA_USEDARKMODECOLORS = 26,
WCA_CORNER_STYLE = 27,
WCA_PART_COLOR = 28,
WCA_DISABLE_MOVESIZE_FEEDBACK = 29,
WCA_LAST = 30
} WINDOWCOMPOSITIONATTRIB;
typedef struct _WINDOWCOMPOSITIONATTRIBDATA
{
WINDOWCOMPOSITIONATTRIB Attrib;
PVOID pvData;
SIZE_T cbData;
} WINDOWCOMPOSITIONATTRIBDATA;
typedef enum _ACCENT_STATE
{
ACCENT_DISABLED = 0,
ACCENT_ENABLE_GRADIENT = 1,
ACCENT_ENABLE_TRANSPARENTGRADIENT = 2,
ACCENT_ENABLE_BLURBEHIND = 3,
ACCENT_ENABLE_ACRYLICBLURBEHIND = 4, // RS4 1803
ACCENT_ENABLE_HOSTBACKDROP = 5, // RS5 1809
ACCENT_INVALID_STATE = 6
} ACCENT_STATE;
typedef struct _ACCENT_POLICY
{
ACCENT_STATE AccentState;
DWORD AccentFlags;
DWORD GradientColor;
DWORD AnimationId;
} ACCENT_POLICY;
typedef BOOL (WINAPI *pfnGetWindowCompositionAttribute)(HWND, WINDOWCOMPOSITIONATTRIBDATA*);
typedef BOOL (WINAPI *pfnSetWindowCompositionAttribute)(HWND, WINDOWCOMPOSITIONATTRIBDATA*);
@HackerDaGreat57
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It works for me. (Windows 11 Build 22000)

@KitsuneAlex
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NICE ONE! Time to uncomment that code :^)

@like-me
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like-me commented Jan 29, 2023

I'd like to know what WINDOWCOMPOSITIONATTRIB enumerations can do. Is there any documentation on that?

@HackerDaGreat57
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@like-me there is no public documentation on this which is why this gist exists :)

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