1
我開發了一個TSP來與CTI服務器通話。在大多數情況下它的工作原理，但設置在在TSP中設置來電顯示的問題
function TSPI_lineGetCallInfo(
hdCall : HDRVCALL;
lpCallInfo : LPLINECALLINFO
) : LONG;
主叫/被叫方ID，當我發現的偏移校正所有，但大小字段都沒有。在函數結束時，我輸出（調試器）每個字段的大小和偏移量，他們是我所期望的。但是，當我使用TAPI程序檢查這些值時，大小是不同的（但偏移量與每個調試語句完全相同），實際上大小字段5無論實際存在的是多少，而調試語句在結尾處下面的代碼顯示正確的值...
任何幫助非常感謝。
lpCallInfo^.dwCallerIDOffset := 0;
lpCallInfo^.dwCallerIDSize := 0;
lpCallInfo^.dwCalledIDOffset := 0;
lpCallInfo^.dwCalledIDSize := 0;
lpCallInfo^.dwConnectedIDOffset := 0;
lpCallInfo^.dwConnectedIDSize := 0;
extnid := thiscall.CallItem.ExtnId;
phoneno := thiscall.CallItem.DialNum;
extnid_size := (Length(extnid) + 1) * sizeof(WCHAR);
phoneno_size := (Length(phoneno) + 1) * sizeof(WCHAR);
extnidw := StringToWideStringEx(extnid, CP_ACP);
phonenow := StringToWideStringEx(phoneno, CP_ACP);
if lpCallInfo^.dwOrigin = LINECALLORIGIN_INTERNAL then
begin
{me}
lpCallInfo^.dwCallerIDOffset := sizeof(TLINECALLINFO);
lpCallInfo^.dwCallerIDSize := extnid_size;
Move(ExtnIdw[1], ptr^, extnid_size * 2);
ptr := Pointer(integer(ptr) + lpCallInfo^.dwCallerIDSize);
{other party}
if phoneno <> '' then
begin
lpCallInfo^.dwCalledIDOffset :=
sizeof(TLINECALLINFO) + lpCallInfo^.dwCallerIDSize;
lpCallInfo^.dwCalledIDSize := phoneno_size;
Move(phonenow[1], ptr^, phoneno_size * 2);
end;
end
else
begin
if thiscall.CallItem.CallType = 1 then
begin {incoming call}
{agent is the called party}
lpCallInfo^.dwCalledIDOffset := sizeof(TLINECALLINFO);
lpCallInfo^.dwCalledIDSize := extnid_size;
Move(ExtnIdw[1], ptr^, extnid_size);
ptr := Pointer(integer(ptr) + lpCallInfo^.dwCalledIDSize);
{other party is the caller}
if phoneno <> '' then
begin
lpCallInfo^.dwCallerIDOffset :=
sizeof(TLINECALLINFO) + lpCallInfo^.dwCalledIDSize;
lpCallInfo^.dwCallerIDSize := phoneno_size;
Move(phonenow[1], ptr^, phoneno_size);
ptr := Pointer(integer(ptr) + lpCallInfo^.dwCallerIDSize);
end;
end
else
begin
{agnet is the caller}
lpCallInfo^.dwCallerIDOffset := sizeof(TLINECALLINFO);
lpCallInfo^.dwCallerIDSize := extnid_size;
Move(ExtnIdw[1], ptr^, extnid_size);
ptr := Pointer(integer(ptr) + lpCallInfo^.dwCallerIDSize);
{dialed number is the called party}
if phoneno <> '' then
begin
lpCallInfo^.dwCalledIDOffset :=
sizeof(TLINECALLINFO) + lpCallInfo^.dwCallerIDSize;
lpCallInfo^.dwCalledIDSize := phoneno_size;
Move(phonenow[1], ptr^, phoneno_size);
ptr := Pointer(integer(ptr) + lpCallInfo^.dwCalledIDSize);
end;
end;
if (thiscall.CallItem.CallState = cs_Connected) and
(phoneno <> '') then
begin
lpCallInfo^.dwConnectedIDOffset := sizeof(TLINECALLINFO) +
lpCallInfo^.dwCallerIDSize + lpCallInfo^.dwCalledIDSize;
lpCallInfo^.dwConnectedIDSize := phoneno_size;
Move(phonenow[1], ptr^, phoneno_size);
ptr := Pointer(integer(ptr) + lpCallInfo^.dwConnectedIDSize);
end;
end;
end;
DEBUG('TSPI_lineGetCallInfo::dwCallerIDOffset=' + intToStr(lpCallInfo^.dwCallerIDOffset));
DEBUG('TSPI_lineGetCallInfo::dwCallerIDSize=' + intToStr(lpCallInfo^.dwCallerIDSize));
DEBUG('TSPI_lineGetCallInfo::dwCalledIDOffset=' + intToStr(lpCallInfo^.dwCalledIDOffset));
DEBUG('TSPI_lineGetCallInfo::dwCalledIDSize=' + intToStr(lpCallInfo^.dwCalledIDSize));
DEBUG('TSPI_lineGetCallInfo::dwConnectedIDOffset=' + intToStr(lpCallInfo^.dwConnectedIDOffset));
DEBUG('TSPI_lineGetCallInfo::dwConnectedIDSize=' + intToStr(lpCallInfo^.dwConnectedIDSize));