我现在用c++编写了一个程序,希望能够和extend交换数据,以及自动对extend进行一些操作。我参阅了例子里的关于OLE AUTOMATION方面的c++程序,但搞得不是很懂。比如说,c++程序向extend发送一个数据:" ^8 z% U5 y$ B; I2 @: ^" n
Name = (WCHAR *) L"Poke";9 m5 A* W0 |$ ^- w1 S' P- a
; {0 b3 t8 ?9 S. L hr = m_pDisp->GetIDsOfNames ( 5 a c# J/ X% \' o: ^ IID_NULL, // reserved ( w: H. o. x7 ~2 v1 O &Name, // Array of names to get IDs for& p+ x; I& S/ }* u2 ^ Y
1, // # of names in the array$ u+ W$ M2 q8 h+ ?- h+ i
LOCALE_SYSTEM_DEFAULT, // System locale + q6 l( q9 y9 g& H8 r, o7 e &pokeID); // Array of IDs to fill on output1 E4 e6 A: R( E. @, o7 g
% E5 @! q9 V* D) ]5 B; ~4 Q% @ if (hr) 5 v& R' q" o6 e7 h3 _( D2 ^ {4 F$ c' j6 o- ~9 _9 L! H: V) R
MessageBox ("Get Poke Unsuccessful");+ U: u2 I$ C/ f4 P0 B! c
return; + q8 ^+ o" H4 X+ y% k }3 C' [3 ]( g% Z H+ [# D
5 p+ k+ }; W8 V& B/**************************传递数据给extend**************************************/ 5 h P. d% N& b! V ?. u1 D: A/ P6 R pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); " k6 `2 p+ v7 H4 ? C % t7 x- `8 s" m5 ] valueStr = SysAllocString((WCHAR *) L"1232"); # x5 z, A; \ T. k VariantInit(&pokeVariant[0]); ! y; {) S7 B0 P! g" \$ G
pokeVariant[0].vt = VT_BSTR;. Z A* i5 g' r8 l2 R, b8 P# F2 A) U
pokeVariant[0].bstrVal = valueStr; " l# W3 B' Y& | H0 \8 \( F$ n
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ l5 \/ P1 n7 Q$ _8 x9 `
VariantInit(&pokeVariant[1]); ; D3 e: h# o/ N; t pokeVariant[1].vt = VT_BSTR; # l4 _ d7 o" I pokeVariant[1].bstrVal = itemStr; ' q4 v% u% Q7 W# A' X0 \+ @% p8 } , q: x Y: W# t# ~ topicStr = SysAllocString((WCHAR *) L"system"); 2 |0 a2 {* @7 B T VariantInit(&pokeVariant[2]); ) u8 X2 L! c% s* L3 W- [
pokeVariant[2].vt = VT_BSTR; # n. w. M! F, i2 x5 y% l pokeVariant[2].bstrVal = topicStr; ( E9 j+ `. a$ O, F, ]' z5 J2 u! z( b
// Set the DISPPARAMS structure that holds the variant.5 K2 f4 n* M1 {7 {! k+ c+ K% }
l8 p2 X) f$ h J U5 T$ j dp.rgvarg = pokeVariant;( Z& }; v; X/ d, L c
dp.cArgs = 3; 7 u! j2 ~4 S' P) q0 L3 K dp.rgdispidNamedArgs = NULL; $ o$ H+ X- ^8 E dp.cNamedArgs = 0; 6 q1 o, p9 {+ b) p; b) q1 a q- l# V( C; q, `// Call IDispatch::Invoke() " Z/ M; P4 \: \ s' Z8 f9 L6 I5 u 9 i9 v5 @, v9 m: z9 i% p* M4 y hr = m_pDisp->Invoke( 8 c0 F( o9 p1 o1 V1 ? pokeID, + z9 D, l. f$ N# o% t5 S! j1 t IID_NULL,$ h; K% x1 d* i5 I G
LOCALE_SYSTEM_DEFAULT,* P0 o3 B) n5 U! U+ d; F
DISPATCH_METHOD, ! r9 ?( n- G) M& M9 X8 E8 Q &dp,/ R) u# o2 I; x
NULL,1 R0 }6 [, m" Z5 R5 R
&ei, * e* Y2 z& W( r, G &uiErr); - [$ i5 G9 V. f' h 2 [2 F$ g# o4 |+ j+ E/ b% u SysFreeString(topicStr);3 a. f0 @- G: ?3 v, `7 f
SysFreeString(itemStr);* y3 l( l8 I1 |) I9 [
SysFreeString(valueStr);8 h+ H0 b/ O/ U8 S9 @" P
/ {' G& C( ~3 P0 D- ?( k h) b现在这个程序可以实现将1232这个数据发送到extend,extend有一个对话框弹出并出现1232这个数据,不知道这个对话框为什么会弹出并显示这个数据???, h$ @8 X! C1 O; R9 _& q% [
此外我希望将这个数据赋给extend程序里面的一个变量,请问如何实现????7 M! g. ~- u% H% v
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2.这是request的程序# Q; \' c% H6 @6 r
// Request a value from Extend 7 c Y4 W$ ?" m# P//! g* ^) R$ U; L0 O5 o
// Initialize the variant that will hold the BSTR. Set the variant's& g- o8 h6 Y1 W5 a
// type flag to indicate the fact that this variant holds a BSTR. Place the ! P" s# a6 o/ I! I4 M+ P' a" O! ~// BSTR into the variant structure. , s) F' J$ ]0 q3 j + s2 ?/ F7 K8 b& v! u requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);0 ~, s% J% U& ~$ E8 {
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 ? r% w/ c+ E) N VariantInit(&requestVariant[0]); 7 _! o( p& P @6 g+ @! Z0 `) u( F# N
requestVariant[0].vt = VT_BSTR;0 m4 _4 q% X* N: P7 F+ v
requestVariant[0].bstrVal = itemStr; ?5 c( {! S) s% P : x6 [( j3 f1 G topicStr = SysAllocString((WCHAR *) L"system");$ S5 I2 [5 V$ N O( z
VariantInit(&requestVariant[1]); ) D1 b( v2 M+ d# t* a+ A* n; B L
requestVariant[1].vt = VT_BSTR; ^& Q, [+ I) E9 q# s
requestVariant[1].bstrVal = topicStr; ( K: v# p$ x% B2 x . a, V: E! P) @5 C2 _+ j" G// Set the DISPPARAMS structure that holds the variant.' J+ ^- S6 I2 f3 M1 w, P
( `& ]' O9 r5 m5 V6 o6 _; d dp2.rgvarg = requestVariant; 6 J/ V# l+ A! \$ V9 D( [2 v dp2.cArgs = 2;& Q5 C: M9 |/ [/ k+ f5 _! C2 o
dp2.rgdispidNamedArgs = NULL; 7 |& \$ T) J" n C dp2.cNamedArgs = 0;3 l+ t# O* Y) Z* n' Q
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var.vt = VT_EMPTY;. z% {7 G# F) \5 b1 n8 O
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// Call IDispatch::Invoke()2 N1 s' q4 c( v& p0 x
4 A. K1 d. `$ l hr = m_pDisp->Invoke(. i" ~0 ^7 W( g/ p
requestID, ( p3 e& Q9 f& `4 `* E- ~4 q" G, j IID_NULL,* a1 r8 z# \! d p$ V% `. s
LOCALE_SYSTEM_DEFAULT,# x/ U$ h2 |0 ]2 r9 S' r7 S( ^% u
DISPATCH_METHOD,( ?; g* x3 b; ?2 {9 l
&dp2, : i! o2 Z% p5 `$ Z* J* f &var,7 l4 [9 c9 X4 f3 s+ b
&ei,2 u; Y( o0 c" {1 z! M3 s' H
&uiErr);- @# x0 T) O1 F) ]
: b0 w2 \* N2 N4 Z2 | SysFreeString(topicStr);' b! h/ w. n9 F& s
SysFreeString(itemStr);" J3 ^8 w7 y, J
请问该程序是获得extend里面的哪个值?8 R" V" F* E2 v0 U; U
如果我希望获得extend程序里面的某个变量的数值,那个c++程序应该如何实现????