Hi

I have encountered a strange problem: while using PostThreadMessage to communicate between threads of different processes, PostThreadMessage returns "The message can be used only with synchronous operations" (1159), I didn't find any documentation discussing this error in details, does anyone has a clue??? What am I doing wrong here? Why should PostThreadMessage return this kind of error

Following is the code used to post the message
int iSendCnt = 10
while(--iSendCnt > 0 && 0 == PostThreadMessage(dwDebuggerMsgThreadID, 1, 2300, 0)
  Sleep(0)

NOTE that the thread referred to by 'dwDebuggerMsgThreadID' has a
message pump: while(0 != GetMessage(&msg, NULL, 0, 0)) { ........ }

Thanks
  Nadav