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: 2 S' v) Z2 ] uName = (WCHAR *) L"Poke"; % |' j+ y5 T8 Q1 z( X8 a 6 F; {' ?2 Y6 l3 F+ a, r! w1 U2 U
hr = m_pDisp->GetIDsOfNames ( ( d5 A W5 A8 @0 X. |, i' d! G IID_NULL, // reserved $ p$ v- w" e( r8 J &Name, // Array of names to get IDs for - V+ D# r' j! n3 Y$ {" D8 J1 D' U 1, // # of names in the array * {- x! C" M+ y, P LOCALE_SYSTEM_DEFAULT, // System locale. b) v% ]( L4 d2 ^2 I0 N' H5 F
&pokeID); // Array of IDs to fill on output - e$ `* J" L( F; Q/ | & c: A0 q" C! O: Q7 i& ]7 n
if (hr): o+ O7 Z* V% ?1 D
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MessageBox ("Get Poke Unsuccessful"); ; }8 q; |, A* O4 X4 _! a return; * p s$ r- b, c! {6 |% t; ~$ W }4 }9 k/ \& t$ m8 d2 }1 ~, W
\% y V3 _0 k* w9 a/**************************传递数据给extend**************************************/7 o0 y; V4 r4 b
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); , s: l# D* a) u1 A$ c 4 c; O) n- A- o% ] valueStr = SysAllocString((WCHAR *) L"1232");/ K$ }5 F1 _# D9 `0 w
VariantInit(&pokeVariant[0]); * \- g- d O# M: E# \ x) f6 @ pokeVariant[0].vt = VT_BSTR; 1 w `- p+ @2 M R6 ?) w pokeVariant[0].bstrVal = valueStr; i7 w. U& O& T8 F" E 4 x2 e1 P7 W0 M! W/ r& r( l itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); J1 D& G: s- n0 |9 R0 s! [- P
VariantInit(&pokeVariant[1]); ! @' q9 ]9 y$ }- R5 }6 g4 B pokeVariant[1].vt = VT_BSTR;- d3 M* b. c4 S3 [2 t
pokeVariant[1].bstrVal = itemStr;" E* K8 ]3 x3 Y5 S- f0 F
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topicStr = SysAllocString((WCHAR *) L"system");+ _6 d2 t6 @1 ~5 a+ Y1 N: Q
VariantInit(&pokeVariant[2]); 2 F8 V9 T. ]# w
pokeVariant[2].vt = VT_BSTR; : q% I& W L$ a! M/ Y( {* I* N7 p- F+ m pokeVariant[2].bstrVal = topicStr;* |% \$ P, _: \; H4 `/ ~
: X1 m# r5 V5 c' Q5 C& f// Set the DISPPARAMS structure that holds the variant.2 h! q- B- H( J: v' f
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dp.rgvarg = pokeVariant; 1 a, ~* S: d7 e+ x dp.cArgs = 3; 0 u) W( ^6 O3 B" `) h5 }$ c dp.rgdispidNamedArgs = NULL; , a. U' \' ?3 M dp.cNamedArgs = 0; . T4 J2 {' w$ D% O( ^" \& @7 q# [% e- u8 l
// Call IDispatch::Invoke()2 j* H! r/ j. Q
4 V* i" B- F% S hr = m_pDisp->Invoke( * F, X1 V; l# e5 { pokeID,; I& ~; M# ~ `9 A N3 |; L) u4 b' O4 k
IID_NULL, ! T6 O+ ?$ _6 }) R/ Y LOCALE_SYSTEM_DEFAULT,7 J. G. I; C: u5 S7 e
DISPATCH_METHOD, 8 T9 U# t" T4 k$ {# O R8 S h &dp,; D+ y. a* o& F3 N" U" M
NULL, , L Y! }5 r0 X" p& \1 x &ei,! q- ?8 k( N# J4 L! P& \) \. g
&uiErr);; B1 z' Y( W) C5 u7 u
+ }3 H5 E8 x4 f; l$ ~/ B$ I2 Q5 I6 }
SysFreeString(topicStr);2 `# B% |- C" z
SysFreeString(itemStr);& C1 E% o) S, u/ R# {- A6 q
SysFreeString(valueStr);0 N0 o( y% j3 w, q- v" u: H- ^ o
- L0 |4 U5 q- x# N0 H) W* 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???+ \) H3 a7 T" S* }& P
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???? 6 m7 h9 ]0 h0 g8 U# s! p( U7 n' g h& |7 s
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2.这是request的程序 ' d9 @% P1 O# C1 a8 m4 G3 M% U// Request a value from Extend . U7 }7 D( N; ]4 n) b' d+ Z% _// & Y9 v2 c3 p: E: g; J7 R// Initialize the variant that will hold the BSTR. Set the variant's 2 M9 G" P6 V5 U2 }7 K// type flag to indicate the fact that this variant holds a BSTR. Place the & ]* z7 Z6 |0 x5 g- s// BSTR into the variant structure.9 F; m5 q9 q8 a+ b/ g* X
9 B5 n0 m) |9 X9 Y" D) x; H3 i; X6 c requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);5 O/ ?8 Z5 Y. J/ p
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 7 B/ w- P" x2 r. s! C VariantInit(&requestVariant[0]); , k$ |# {" b+ E requestVariant[0].vt = VT_BSTR;- `, D" M- e% V6 ~
requestVariant[0].bstrVal = itemStr; ) Q- m9 u% E `7 ?+ S, K ' C& f& y, {! \5 |6 j topicStr = SysAllocString((WCHAR *) L"system");! Z3 b. d, G* Q+ }
VariantInit(&requestVariant[1]); / n$ O& H ?5 r2 @5 C# v" l$ c$ ~
requestVariant[1].vt = VT_BSTR; % D. s% _2 M ]' s$ \6 X requestVariant[1].bstrVal = topicStr; 3 P. A5 e1 y. v; X R3 j* z5 z9 y0 s! I// Set the DISPPARAMS structure that holds the variant.: x0 @2 `- Z' B: y) r
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dp2.rgvarg = requestVariant;' y" |. d1 y, s7 N/ E- l
dp2.cArgs = 2;4 A; i! E+ K& x* X* W
dp2.rgdispidNamedArgs = NULL; + v: C& N% }. s dp2.cNamedArgs = 0;) _0 T2 R7 E. W6 l1 \
* ]$ C" Y% r& n: C6 I var.vt = VT_EMPTY;% Y9 A" G% F9 L {* ]8 q) c! S
8 u, E6 \' q. ~, j3 Y// Call IDispatch::Invoke()3 H8 A- {4 q6 C
6 m6 m1 R" H6 Q( K8 D. Q, H. s" o hr = m_pDisp->Invoke(# x i# _5 O& F; J- n% i
requestID,: K$ l. P! F+ r, w* \' p; L
IID_NULL,; P8 B* ]* [% x# v9 L. a* O9 F
LOCALE_SYSTEM_DEFAULT,0 K4 o U$ {/ Q/ D# [- C
DISPATCH_METHOD, # X) n; l) m9 B8 l. x2 ~ &dp2, 6 y7 ]- _8 y9 n7 \ &var, / N) v: p* m9 a( y' J* }+ F &ei, ) o0 }. d5 q- x &uiErr);% W1 O) L4 z* C* N