使用SetWindowCompositionAttribute去除模糊的轮廓

#include <Windows.h>
#include <Uxtheme.h>

// 定义组合属性数据结构
typedef struct _ACCENTPOLICY {
    int nAccentState;
    int nFlags;
    int nColor;
    int nAnimationId;
} ACCENTPOLICY;

typedef struct _WINCOMPATTRDATA {
    int nAttribute;
    PVOID pData;
    ULONG ulDataSize;
} WINCOMPATTRDATA;

// 定义组合属性常量
const int WCA_ACCENT_POLICY = 19;
const int ACCENT_DISABLED = 0;
const int ACCENT_ENABLE_BLURBEHIND = 3;

// 去除窗口模糊轮廓
void RemoveWindowBlur(HWND hWnd) {
    // 获取函数指针
    HMODULE hModule = LoadLibrary(L"user32.dll");
    if (hModule == NULL) {
        return;
    }
    typedef BOOL(WINAPI* pSetWindowCompositionAttribute)(HWND, WINCOMPATTRDATA*);
    pSetWindowCompositionAttribute SetWindowCompositionAttribute = (pSetWindowCompositionAttribute)GetProcAddress(hModule, "SetWindowCompositionAttribute");
    if (SetWindowCompositionAttribute == NULL) {
        FreeLibrary(hModule);
        return;
    }

    // 初始化组合属性数据结构
    ACCENTPOLICY policy = { ACCENT_ENABLE_BLURBEHIND, 0, 0, 0 };
    WINCOMPATTRDATA data = { WCA_ACCENT_POLICY, &policy, sizeof(ACCENTPOLICY) };

    // 调用SetWindowCompositionAttribute函数
    SetWindowCompositionAttribute(hWnd, &data);

    // 释放资源
    FreeLibrary(hModule);
}

int main() {
    // 获取窗口句柄
    HWND hWnd = GetForegroundWindow();

    // 去除窗口模糊轮廓
    RemoveWindowBlur(hWnd);

    return 0;
}