func (tt *ToolTip) RemoveTool(tool Widget) error { hwnd := tool.Handle() var ti win.TOOLINFO ti.CbSize = uint32(unsafe.Sizeof(ti)) ti.Hwnd = hwnd ti.UId = uintptr(hwnd) tt.SendMessage(win.TTM_DELTOOL, 0, uintptr(unsafe.Pointer(&ti))) return nil }
func (tt *ToolTip) AddTool(tool Widget) error { hwnd := tool.Handle() var ti win.TOOLINFO ti.CbSize = uint32(unsafe.Sizeof(ti)) ti.Hwnd = hwnd ti.UFlags = win.TTF_IDISHWND | win.TTF_SUBCLASS ti.UId = uintptr(hwnd) if win.FALSE == tt.SendMessage(win.TTM_ADDTOOL, 0, uintptr(unsafe.Pointer(&ti))) { return newError("TTM_ADDTOOL failed") } return nil }
func (tt *ToolTip) toolInfo(tool Widget) *win.TOOLINFO { var ti win.TOOLINFO var buf [80]uint16 hwnd := tool.Handle() ti.CbSize = uint32(unsafe.Sizeof(ti)) ti.Hwnd = hwnd ti.UId = uintptr(hwnd) ti.LpszText = &buf[0] if win.FALSE == tt.SendMessage(win.TTM_GETTOOLINFO, 0, uintptr(unsafe.Pointer(&ti))) { return nil } return &ti }