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:- Z( n: P/ W8 _2 w9 m( d6 x0 F
Name = (WCHAR *) L"Poke"; * L; j7 ^ ?; t. X" c' y7 d* a ; Z2 ?9 D6 g% M$ h
hr = m_pDisp->GetIDsOfNames ( % ]8 P5 T8 W9 i" a IID_NULL, // reserved6 u: y- b% z: h/ b, t, W3 K
&Name, // Array of names to get IDs for 3 G5 y. r3 f+ V! W( X' v 1, // # of names in the array1 G R6 K* b: r4 b n
LOCALE_SYSTEM_DEFAULT, // System locale / Z; B3 Q2 X8 f9 F) v &pokeID); // Array of IDs to fill on output: F& {, B- ?* {! @& m. m% U9 u
8 m H; K- m/ U if (hr)) ~$ i# `2 B% J
{ * W2 B% p0 [; l, X7 S MessageBox ("Get Poke Unsuccessful");0 F/ b; z6 O1 A5 C: n# ]
return;, _8 B/ f* [. m+ {4 }
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/**************************传递数据给extend**************************************/ `8 [( u, |) r: D/ T6 Z+ k$ ?, g1 `
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 8 x s' o; E8 Z" t 4 p! ]/ P, W. ?' Z: `$ E
valueStr = SysAllocString((WCHAR *) L"1232");0 Q0 V M; M/ ]0 [3 e5 o' p
VariantInit(&pokeVariant[0]); 4 J' F9 z2 I, p
pokeVariant[0].vt = VT_BSTR; / g5 i, j8 X+ p pokeVariant[0].bstrVal = valueStr; # ^* T' s1 e. O. V. e 4 ~9 I2 y$ _1 v" ? T2 u itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 r# a0 `- V9 N0 N6 A VariantInit(&pokeVariant[1]); 2 M4 `5 D) B/ L9 H+ j- | pokeVariant[1].vt = VT_BSTR; 6 z; {. H0 _! O% q9 m8 V* n8 g/ k pokeVariant[1].bstrVal = itemStr;5 [% [( ]$ `1 R! M( [
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topicStr = SysAllocString((WCHAR *) L"system");* x; J( ]: J7 e$ Z% u* J3 g
VariantInit(&pokeVariant[2]); 7 [" E) A |! ^) k/ Y pokeVariant[2].vt = VT_BSTR;' Q$ \7 n0 B. Z9 j' Z( j6 J! c/ Y* N
pokeVariant[2].bstrVal = topicStr;9 n7 Q- L7 d# m& l
9 \' J: ^0 Y2 G( [( ]// Set the DISPPARAMS structure that holds the variant. * O, @% H" ^) E& e& F) `- P; F' W3 o
dp.rgvarg = pokeVariant;' k, v H8 R% `% r0 U3 J
dp.cArgs = 3;- W7 S. p y+ L5 w5 ]
dp.rgdispidNamedArgs = NULL; ! C+ K4 J: p0 Y& d2 v W dp.cNamedArgs = 0;( B; x% n2 J& R
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// Call IDispatch::Invoke()8 l: P o. w: E0 T$ n
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hr = m_pDisp->Invoke( & t4 A; `8 U( D/ a5 `6 w: c pokeID, 3 y7 I& v' S2 [* Y IID_NULL, - l# p( z. E( t- X1 G LOCALE_SYSTEM_DEFAULT, 1 k; h5 k. m4 a9 r DISPATCH_METHOD, ! P% f* d' _* V3 F &dp, & G7 Y3 _9 h- O/ Q NULL, % m: u- Q! S/ r) q &ei, / p' Z; m& m3 P6 j, h# r4 _ ` &uiErr); 4 V" g0 ^, @) F" I- y; p& E5 _& i1 ^! R; d
SysFreeString(topicStr);9 b/ ?" u9 y; R: n7 h1 ?! V9 q
SysFreeString(itemStr); {8 M0 O; `( d3 P# ` SysFreeString(valueStr);, [8 A V4 J$ T! \
' I( T4 s. U" S: j" @- m, @8 q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??? 3 k8 X* e# n1 v$ ?7 |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???? # r; [- C- w3 D) A, h, J/ ?0 ]1 d 8 g' g% T2 x! o; B8 [/ q0 e2 }, d0 S$ k! d) a9 b
2.这是request的程序 + a0 a6 Y4 h( }4 t Y+ U// Request a value from Extend 2 ?& |" u( q- [: Q3 W2 m! |// 6 f& X. ^' u1 t// Initialize the variant that will hold the BSTR. Set the variant's 2 J/ ?' h! o& A9 K// type flag to indicate the fact that this variant holds a BSTR. Place the+ H4 P; [- p3 Q6 \- V
// BSTR into the variant structure. ! l$ G* W0 [- X; ?0 ?+ O, f Z' t0 h' D* W* v* }
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ; W4 v0 @# d1 \- m/ m, a; \3 H 9 Z% {6 p% l8 T. b- Y
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; ~, q( f# j- U0 F. f. d
VariantInit(&requestVariant[0]); 3 I* I$ w) O) | requestVariant[0].vt = VT_BSTR; $ F0 v& P$ D! ]' w requestVariant[0].bstrVal = itemStr; . `8 f. o5 K# O0 ?; v5 D4 H+ T$ O' H G- h1 B
topicStr = SysAllocString((WCHAR *) L"system");7 R$ g, s2 v( y6 R `+ i6 }9 M7 J
VariantInit(&requestVariant[1]); # t+ `, f Z, S/ T9 e. p) ~
requestVariant[1].vt = VT_BSTR;# j/ F+ I6 u0 R+ g6 |
requestVariant[1].bstrVal = topicStr;' g) l$ z0 [1 s) g' ^0 F. o$ x/ o
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// Set the DISPPARAMS structure that holds the variant.$ f' [! g' w R& ^1 t7 y
: T" J/ k2 U& }) M4 z. k# x dp2.rgvarg = requestVariant; # t: q' p; x7 C1 R: l7 x! |' W% ] dp2.cArgs = 2; ) z/ H2 M5 j) k* w/ r- m% r dp2.rgdispidNamedArgs = NULL;' A4 M7 o7 u. H
dp2.cNamedArgs = 0; P/ ^3 V- b5 }1 W' P5 D' P0 b
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var.vt = VT_EMPTY; 4 B' p2 c- z ?: h' v' O: H2 V- l, |1 ?! I9 O; P! n
// Call IDispatch::Invoke() 8 r9 [* E' i& j5 q: `; Y- d* [6 r6 F0 o$ ]. Z. U# m' \! F
hr = m_pDisp->Invoke(+ C8 W9 m: c+ l2 Q( k- F p8 n
requestID, ! {8 S% W) L( v& g; Q IID_NULL,* u/ ]: y, P V4 |# f# c
LOCALE_SYSTEM_DEFAULT, & J0 V1 D' f) n# {9 Z0 [( Z" l/ ? DISPATCH_METHOD,4 ~8 L% }4 U* o: @: T
&dp2, ; r( Q2 A$ L# a- C) i; u+ q &var, ! f" m* P. u1 D+ o% @ &ei,8 s* ?3 G# N o3 { C/ o/ u
&uiErr);+ o) n+ U% O- ?$ N
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SysFreeString(topicStr);2 r) x3 m8 w/ P) `% \, u9 U( ~2 \
SysFreeString(itemStr); 6 }' q2 O4 {$ {: L. k, q/ X8 `请问该程序是获得extend里面的哪个值? ( `3 u$ D% W; h# c w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????