WindowsXP下实现透明窗口功能

 #include <windows.h>//第二个参数为透明度，有效范围0~255，255表示完全不透明void myTransparent(HWND handle,int num){HINSTANCE hInst = LoadLibrary("user32.dll");if ( hInst != NULL ){typedef BOOL(WINAPI *F)(HWND,COLORREF,BYTE,DWORD);F f = (F)GetProcAddress( hInst, "SetLayeredWindowAttributes" );if ( f != NULL ){//设置窗体属性，使其可以透明SetWindowLong( handle, GWL_EXSTYLE, GetWindowLong(handle,GWL_EXSTYLE)^0x80000 );f( handle, NULL, num, 2 );}FreeLibrary(hInst);}}void main(){//HWND Handle = FindWindow("Shell_TrayWnd",NULL); //透明任务栏HWND Handle = FindWindow(NULL,"about:blank - 世界之窗"); //透明已经打开的世界之窗浏览器if (Handle){//将Handle设置成你想要透明的对象即可myTransparent(Handle, 168);}}