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: ' N, Z |0 l, NName = (WCHAR *) L"Poke"; % l" l- t2 A5 H6 r: `& K % \5 A: m+ X, B6 W$ ]/ Q hr = m_pDisp->GetIDsOfNames (4 ]% P- n: [+ Q1 q
IID_NULL, // reserved 9 v# i( Y" z, x! w3 O# e& B0 A$ D &Name, // Array of names to get IDs for0 z: B+ b& ~' f8 Z* |3 B5 }3 H( `
1, // # of names in the array 8 \$ G4 c5 R6 ?* a6 R# H2 X LOCALE_SYSTEM_DEFAULT, // System locale. |% c. [ w$ q, q: a
&pokeID); // Array of IDs to fill on output D" z5 E3 ]: z7 ^ / M8 z5 m* c# P4 y) S
if (hr)& G! c. k& m8 i1 L F8 s- U0 m
{4 a8 I2 N. A9 A0 @
MessageBox ("Get Poke Unsuccessful"); 5 o1 n; U O4 b( N return;/ e0 C: ~9 L+ c& _7 K/ W5 J! N
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8 M! U. Q, E2 n! I/ L/**************************传递数据给extend**************************************/ , Z- O( ~2 j/ O( C3 L- v pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 0 `5 d! m$ W" K* X6 g; S ; N: E2 x6 m4 ^; p7 G# p valueStr = SysAllocString((WCHAR *) L"1232");( w- G6 }) a% c
VariantInit(&pokeVariant[0]); 7 w2 ]% ~. ]) c# _5 B) ~; u& _: m
pokeVariant[0].vt = VT_BSTR; - m o8 I( i+ {# @8 I5 u% j3 O+ c' |" C pokeVariant[0].bstrVal = valueStr; 4 b+ I& g" H1 P; v; {' O7 ]% l- j7 I3 t& F: w! C" q# i. d/ ~0 m! T R/ @
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 U1 h: p% q) H+ T6 D( {! W VariantInit(&pokeVariant[1]); 2 z. o. G- b! E- e5 ? pokeVariant[1].vt = VT_BSTR;3 i: l5 s7 B4 L$ t" c8 L. G
pokeVariant[1].bstrVal = itemStr;0 J0 f/ O8 ~% X/ S O ]
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topicStr = SysAllocString((WCHAR *) L"system"); 1 T5 [( c+ a b( u VariantInit(&pokeVariant[2]); ' {! w( f% q' i9 m/ Z' } pokeVariant[2].vt = VT_BSTR; * k0 I6 o+ U3 f4 F- p! X# o pokeVariant[2].bstrVal = topicStr;" A+ n2 h+ ?7 R6 C/ s! @
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// Set the DISPPARAMS structure that holds the variant.1 D5 K6 ]6 ]& h# l9 a
* N' H1 m5 j5 _, A% a dp.rgvarg = pokeVariant; ; o2 }' I. `# o. B& | M dp.cArgs = 3;* R9 M6 _" e" a
dp.rgdispidNamedArgs = NULL;/ J2 U" F& e! O& c7 i4 H/ z: O" u) t
dp.cNamedArgs = 0;7 ]# W! W6 Q* w* f" R* v A
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// Call IDispatch::Invoke() 8 J3 Y; c4 O* N3 ~$ e% P! o % V x. g# Y+ o hr = m_pDisp->Invoke(% }0 c) y, [% K4 H: m7 \
pokeID,6 y2 e- w9 e* \% i& Z/ K: t
IID_NULL, 8 B) R* p1 Y3 M+ t6 U1 V6 }( C' A LOCALE_SYSTEM_DEFAULT, , q7 [* U1 U3 A" q DISPATCH_METHOD, ) h e2 ^7 S0 q# T& Q! d/ X# N7 n, F &dp,5 i9 |/ ]) Z3 r2 X: [
NULL,( c- O7 E" Y# q% F1 d X
&ei,$ p. _: H1 u- T' z X5 n
&uiErr);1 b& R" b) h3 d7 K* h
8 s7 C% r/ Y5 p( ~* a SysFreeString(topicStr); % w* m" h V( p9 X: ]- F6 i SysFreeString(itemStr); % f( D& @ I0 d: y/ X SysFreeString(valueStr); 6 M7 i+ R# M) Y' ? * E! R. Q1 v6 C. m7 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??? : G8 O7 Q4 q1 A$ y1 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???? 1 ^' L5 E; u$ E- k1 G- b( p. X1 P& l. Z" S1 u
3 e# W) j' t4 Z5 v# d* Y3 j2.这是request的程序 , d" R, V9 z6 y2 ?1 M4 j: Q// Request a value from Extend O+ T( p+ N6 z& {* i! a
//2 y [0 J# l. e5 l) G
// Initialize the variant that will hold the BSTR. Set the variant's1 @ g- T/ y5 q1 k; X
// type flag to indicate the fact that this variant holds a BSTR. Place the 1 t; O) t/ [, U' I// BSTR into the variant structure.* O, O8 ~" }" N# D% E. w1 C% X
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);% D' v: B' | a5 T( R' P' W# L
; V+ j3 Q: b0 \7 o* x" n: T itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");8 j$ x) {. P" I( U3 @! h; c) `
VariantInit(&requestVariant[0]); - L! H& s$ V2 d: a5 {
requestVariant[0].vt = VT_BSTR; 5 x( L( ^7 F. g requestVariant[0].bstrVal = itemStr; " R' P; r) Y3 s0 V$ j' j% o4 Y/ O+ s! C& h- N$ e5 T. r
topicStr = SysAllocString((WCHAR *) L"system");. m! X+ ?* F5 z- B) Q8 `, {, c% ]
VariantInit(&requestVariant[1]); ( x+ a; B% Q9 p2 S1 ?, d& D) _
requestVariant[1].vt = VT_BSTR;( E" ^6 A) K8 k/ n0 k9 @5 w! V# |
requestVariant[1].bstrVal = topicStr;) a6 m2 x8 Z! s6 l- F
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// Set the DISPPARAMS structure that holds the variant. - X3 R% F, v" K9 v; N7 {3 Q! U1 d, s: [" D- q
dp2.rgvarg = requestVariant; 3 G' y9 J7 U8 ~, R( s dp2.cArgs = 2;3 L6 r. ?3 E7 H! z- F
dp2.rgdispidNamedArgs = NULL; , H6 c) O2 c& N: x7 a% S# n4 n% y dp2.cNamedArgs = 0; # ` N4 J% r+ C% u2 Q+ v& H7 Z 6 o2 @( u' a P+ u/ T# _ C, W var.vt = VT_EMPTY;- U6 H+ G4 Q" t
o& n4 _' Y3 P1 k- j. n4 Z// Call IDispatch::Invoke() ! q$ q6 h: D/ ?6 n. Z! Z& F: Y. z9 j
hr = m_pDisp->Invoke(' e) v9 b3 \0 E" M6 U
requestID, 0 Q6 A! ^9 T* X3 j; ?" g. n IID_NULL, & F3 H1 N' k" _' W LOCALE_SYSTEM_DEFAULT, 5 `9 K9 C: }; | T8 _ DISPATCH_METHOD,# ~5 `8 d! Z: X$ P
&dp2,* A: a" L& ?) v; Z$ [$ \
&var, ) o0 @! X, p4 L& T &ei,. A/ l; d* P: M4 a6 D# b6 c h7 s
&uiErr);1 w0 z3 @4 | Q1 y* N% N% o X