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: $ d* \) G5 S; Z R) Z1 |Name = (WCHAR *) L"Poke";$ k; P$ r9 F) ?5 Z# N! w. l
+ q8 b' T0 ^, I) m5 O: R2 T' y2 S$ S hr = m_pDisp->GetIDsOfNames (' k- N+ m+ M7 E' F
IID_NULL, // reserved + U7 g" Y8 n! l O8 {8 E &Name, // Array of names to get IDs for 8 k" H |0 y" A' I$ w0 S 1, // # of names in the array 8 E# W3 i9 j& c9 U% ^0 D: ` LOCALE_SYSTEM_DEFAULT, // System locale 2 L/ n8 s# O/ b# T4 t! j- u8 [ &pokeID); // Array of IDs to fill on output 1 Y0 Y2 B& c: g4 O' `$ }# P& W + s- t: W4 e. L
if (hr) # z6 F1 n% n3 h, _3 s1 h" n { 0 w0 t+ b) {' `# G MessageBox ("Get Poke Unsuccessful"); 4 ^' X( U& O4 a$ Z, d. w return;" e7 ?5 j6 w6 X. c* ]* y! G
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8 C5 v# s! s$ t' r; H/**************************传递数据给extend**************************************/, \8 c* f7 e! D$ w( \3 W
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);4 t p' w$ h( D6 g( n' x3 I' R. W# c
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valueStr = SysAllocString((WCHAR *) L"1232");- K7 q9 E. B8 o) V5 p# T. o( _
VariantInit(&pokeVariant[0]); & U( Y5 m) ~% B. K; O! [2 d
pokeVariant[0].vt = VT_BSTR; m1 j' {) `; ~1 V7 {3 ~
pokeVariant[0].bstrVal = valueStr;7 P/ P" b: \: _
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' Y8 K4 m& P. o2 ` VariantInit(&pokeVariant[1]); ' }7 A) K5 I7 z5 ]1 }8 K pokeVariant[1].vt = VT_BSTR;" w' u$ N" u: |- S! {+ { f" m
pokeVariant[1].bstrVal = itemStr;1 _* d1 b1 v. S+ T# X
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topicStr = SysAllocString((WCHAR *) L"system");: o. z c" K$ i
VariantInit(&pokeVariant[2]); ) a' H+ n- z9 B8 ]9 t s pokeVariant[2].vt = VT_BSTR;7 t; k; E9 p2 |+ O+ X. ~' \
pokeVariant[2].bstrVal = topicStr; 1 w. D2 d& l. i/ x" j2 E' o- { - f: F9 D: y, h2 M u! N// Set the DISPPARAMS structure that holds the variant. 3 k! C1 l: Y1 K4 j; f2 {, ~* O 7 L& g/ j8 J) I& n: u- T% B* [ dp.rgvarg = pokeVariant; # W, C* K0 U- C5 `" Z. C4 ` c dp.cArgs = 3; 5 Q$ }3 l* D/ b7 B# }: d6 h% y dp.rgdispidNamedArgs = NULL;1 n; X: u: k2 a" E" _1 j
dp.cNamedArgs = 0;% I1 ~, `1 A) i2 h' r/ Q. e
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// Call IDispatch::Invoke() B$ G0 N: o9 P ! U0 v0 K7 Z- G c3 C( e hr = m_pDisp->Invoke(0 u9 B" D; z% j) _9 e
pokeID, - v* T7 T" m$ t! w+ `- Z9 a$ \ IID_NULL,0 r$ s/ [3 ]9 q. h5 c
LOCALE_SYSTEM_DEFAULT,, ~/ S" Q7 n0 n( `$ |: M
DISPATCH_METHOD,7 @6 a V1 R, b& }3 U
&dp, 4 f$ b0 Y+ R; c$ B0 m' c NULL, ! z% N9 D! U5 z7 z8 s3 f" H8 Q9 s &ei,8 c3 u" Y; ?( m& Y G B
&uiErr); . ]) q' ^* H& l% G& V. Z. Y7 g' ^1 t/ D4 B, ?
SysFreeString(topicStr); * a3 u' S4 J6 `/ f SysFreeString(itemStr); . K% B1 F# W, ?: [- V Y" S SysFreeString(valueStr); $ d! h" j7 w2 R ^0 a9 P; c" R Q6 S2 r T) j
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???- _6 M9 n% V; b" f2 z
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????- H# ]; L& f9 p+ O8 J9 J
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2.这是request的程序+ n' V8 }' }, ^+ O7 v& C7 w+ n
// Request a value from Extend & n" p; A& g4 |//- n! B. A. k" ~! {( V6 {
// Initialize the variant that will hold the BSTR. Set the variant's! l4 ~$ N- ^' P* C) r
// type flag to indicate the fact that this variant holds a BSTR. Place the) I, @! L. y7 i$ B) b3 i! i
// BSTR into the variant structure. . X6 E5 w1 t0 {3 u 0 a1 X1 G. T% f9 O' n* a, ~ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 3 _' s. Y9 S) B: u) d- u * b. ~5 x, d! ~/ w6 _; i% M: b) K) z
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 K) M2 s% |# _$ o VariantInit(&requestVariant[0]); 5 y: A" l- ^' } requestVariant[0].vt = VT_BSTR;; f0 t f1 H; }
requestVariant[0].bstrVal = itemStr;$ l5 r1 R$ B. W. @1 H) \5 J
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topicStr = SysAllocString((WCHAR *) L"system");3 k* s( \' m8 i J& h/ l. `
VariantInit(&requestVariant[1]); * t6 j' k4 G( T
requestVariant[1].vt = VT_BSTR;/ C* a1 C" J z+ a* g+ N H% J4 Z
requestVariant[1].bstrVal = topicStr; ) s3 E2 ~/ K+ d' p) f0 Q) E. t/ p6 h5 o' p/ b+ {3 {9 s( f
// Set the DISPPARAMS structure that holds the variant.1 y7 o8 J* s9 {0 ]
2 c2 e5 q' [: c0 t# T2 A dp2.rgvarg = requestVariant;) @2 C# i0 C6 j+ j! c- a+ ~ ?0 r
dp2.cArgs = 2; 8 I! s8 t9 r3 O* v. g5 d7 U dp2.rgdispidNamedArgs = NULL; . w' ~, ?6 C. \' ~- h dp2.cNamedArgs = 0;- y# L1 x2 M( e* a }. r% v
5 t8 m! z. f+ W/ d0 M var.vt = VT_EMPTY; 3 U* f2 d& l$ a) X1 |! k 0 E9 c! x! F7 k" s/ L' s' Q. H// Call IDispatch::Invoke() , z; Z( `9 o9 m+ ]7 Z8 ? 2 p+ E$ m7 h' o I7 C, O hr = m_pDisp->Invoke(6 R8 n# a5 ~8 t# Z# u
requestID,* v8 A, b. y5 O. v$ X
IID_NULL, ; I$ `' a2 _; e0 ~; g( S _ LOCALE_SYSTEM_DEFAULT,0 o# ^9 P3 c$ _3 M0 D. H& }( D
DISPATCH_METHOD,8 L% h# W$ M: n5 V) q
&dp2, R. M* F( G- [ u9 d4 F. _, A# z &var, 7 B6 k! ]/ n# s$ k" L* R) W &ei, . k/ k) ]/ j+ ]) ~ &uiErr);' L( g% l. U! G5 C
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SysFreeString(topicStr); + L: |- ~; {7 u. Z( s SysFreeString(itemStr); - k. M& f1 v) T; z8 ~7 y请问该程序是获得extend里面的哪个值? ( b6 c T6 ]( W6 H# U, ^9 c5 g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????