PowerBuilder, disable system menu`s close button

ulong ll_parent_hwnd ulong ll_sys_menu_hwnd ulong ll_sys_menu_close_flags ulong ll_ret n_cst_numerical u_num ll_parent_hwnd = Handle(this.parentwindow()) ll_sys_menu_hwnd = GetSystemMenu(ll_parent_hwnd, FALSE) ll_sys_menu_close_flags = GetMenuState(ll_sys_menu_hwnd, SC_CLOSE, MF_BYCOMMAND ) ll_ret = u_num.of_bitwiseand(ll_sys_menu_close_flags , MF_DISABLED) ib_close_prev_enabled = (ll_ret = 0) If ib_close_prev_enabled Then EnableMenuItem (ll_sys_menu_hwnd, SC_CLOSE, MF_BYCOMMAND + MF_DISABLED + MF_GRAYED) End If   And to enable it later: If ib_close_prev_enabled Then […]

PowerBuilder, different DD list values for each row

Source http://www.pbdr.com/pbtips/dw/fltrdddw.htm Step 1 – declare instance variables boolean ib_dropdowndropped = False boolean ib_dropdownredrawn = True Step 2 – extend the pbm_dropdown event ib_dropdowndropped = True ib_dropdownredrawn = False of_Filter(True) ib_dropdownredrawn = True Step 3 – extend the pbm_ncpaint event If (ib_dropdowndropped And ib_dropdownredrawn) Then ib_dropdowndropped = False ib_dropdownredrawn = False of_Filter(False) ib_dropdownredrawn = True End […]