/*
 * Combo box definitions
 */


typedef struct {
  DWORD dwStyle;
  DWORD dwState;
  HWND  hWndEdit;
  HWND  hWndLBox;
  WORD  LBoxTop;
  BOOL  DropDownVisible;
  short LastSel;
  RECT  RectEdit;
  RECT  RectButton;
  BOOL  bRedrawFlag;
} HEADCOMBO,*LPHEADCOMBO;

LRESULT ComboBoxWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam);
LRESULT ComboLBoxWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam);