#define wxTR_HAS_BUTTONS 0x0001 // draw collapsed/expanded btns
#define wxTR_NO_LINES 0x0004 // don't draw lines at all
#define wxTR_LINES_AT_ROOT 0x0008 // connect top-level nodes
#define wxTR_HAS_BUTTONS 0x0001 // draw collapsed/expanded btns
#define wxTR_NO_LINES 0x0004 // don't draw lines at all
#define wxTR_LINES_AT_ROOT 0x0008 // connect top-level nodes
#define wxTR_SINGLE 0x0000 // for convenience
#define wxTR_MULTIPLE 0x0020 // can select multiple items
#define wxTR_SINGLE 0x0000 // for convenience
#define wxTR_MULTIPLE 0x0020 // can select multiple items