设置窗口透明化（VC）

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BOOL CTest::OnInitDialog()

{

CDialog::OnInitDialog();

//设置窗口扩展风格

SetWindowLong(GetSafeHwnd(),GWL_EXSTYLE,GetWindowLong(GetSafeHwnd(),GWL_EXSTYLE)|0x80000);

typedef BOOL (WINAPI *FSetLayeredWindowAttributes)(HWND,COLORREF,BYTE,DWORD);

FSetLayeredWindowAttributes SetLayeredWindowAttributes ;

HINSTANCE hInst = LoadLibrary("User32.DLL");

SetLayeredWindowAttributes = (FSetLayeredWindowAttributes)GetProcAddress(hInst,"SetLayeredWindowAttributes");

if (SetLayeredWindowAttributes)

SetLayeredWindowAttributes(GetSafeHwnd(),RGB(0,0,0),238,2);

FreeLibrary(hInst);

return TRUE; // return TRUE unless you set the focus to a control

// EXCEPTION: OCX Property Pages should return FALSE

}