How to attach box to menu?

DrawBox(menux-10, menuy, 185, frame, D3DCOLOR_XRGB(40, 40, 40),D3DCOLOR_ARGB(255, 0, 0, 255),pDevice);

if(GetAsyncKeyState(VK_LCONTROL)) MoveMenu = (!MoveMenu);

if( MoveMenu ) {
   POINT myCursor; 
   GetCursorPos(&myCursor); // get the cursor position.
   if(GetAsyncKeyState(VK_LBUTTON)) {
      menux = myCursor.x; // set the x of your menu to the cursor x position.
      menuy = myCursor.y; // set the y of your menu to the cursor y position.
   }
}

//Globals:
int MoveMenu = 0;

//Then add it to your menu like any other hack.

//Hackthread or RenderFrame:
if(MoveMenu > 0){
     //... Do move menu code ...//
}