I'm Trying to send notification using D-Bus Notify method. The thing is, that I do not understand how to properly use it. My current code: https://github.com/ik5/display-quotes/blob/master/src/units/untquotedbus.pas #L92 I'ved marked the place where i Have AccessViolation exception. What am I doing wrong here ? At first sight there are several things wrong: - all values should be pointers to variables. PINTEGER(100) should be the address of a variable that contains 100. - null pchars are not allowed (empty strings!) - DBUS_TYPE_ARRAY should be a group of 4 elements: DBUS_TYPE_ARRAY , the type of array elements (fe DBUS_TYPE_UINT32), the address of the array, number of elements in the array - the array of const should terminate with a DBUS_TYPE_INVALID - I doubt DBUS_TYPE_DICT_ENTRY is allowed in dbus_message_append_args Ludo A small rectification: - DBUS_TYPE_ARRAY should be a group of 4 elements: DBUS_TYPE_ARRAY , the type of array elements (fe DBUS_TYPE_UINT32), the address of the pointer to the array, number of elements in the array. So to send an uint32, a string and an array of uint32 you hvae to do the following: var i:dword; s:string; aa: array[0..4] of dword; sp,aap:pointer; ... s:='Display Qoutes'; sp:=@s[1]; aap:=@aa[0]; dbus_message_append_args(msg, DBUS_TYPE_UINT32, [@i, DBUS_TYPE_STRING, @sp, DBUS_TYPE_ARRAY, DBUS_TYPE_UINT32, @aap, PLongInt(5), DBUS_TYPE_INVALID] ); Tested on ubuntu x64, message checked with dbus-monitor. Ludo
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