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:4 {6 T7 k; ?6 t& N& o
Name = (WCHAR *) L"Poke"; $ H M1 `* N0 U 2 J$ p/ K" Z% b0 b3 v
hr = m_pDisp->GetIDsOfNames (' w7 t; U# }5 j2 z& u1 \% l1 p
IID_NULL, // reserved& @6 ]! e# s0 x1 }: R3 b
&Name, // Array of names to get IDs for ; @6 \- K+ G% |* n5 t% c 1, // # of names in the array 2 {. l2 s& m0 p* Q) p2 L LOCALE_SYSTEM_DEFAULT, // System locale3 j5 L% M0 I! C+ m7 [7 P
&pokeID); // Array of IDs to fill on output3 R# o! _- z" h. m, H
7 E* Q! F$ s, i" |: { if (hr) 9 |) V# U' y9 p# h3 s v5 c { , Z/ ^# F0 J6 D x5 ] MessageBox ("Get Poke Unsuccessful"); 8 J, X% k% }' ^7 p4 R+ x7 F return; % C0 O+ j% h# W } ! R# i3 Y F2 S& l$ U3 J( U* ?$ e2 O+ m& b2 ?7 ]2 |0 U
/**************************传递数据给extend**************************************/ / a7 O4 {' g& [) k7 B pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); / }0 o: X8 r; |. c / c' T4 n- @6 v4 p* l2 ` valueStr = SysAllocString((WCHAR *) L"1232");' U. G( D: ^9 U4 [& J4 m: i, Q
VariantInit(&pokeVariant[0]); ! `3 k% e) m; g" F! V
pokeVariant[0].vt = VT_BSTR; 8 o$ t! i) E: q! [4 _5 a' d7 t W pokeVariant[0].bstrVal = valueStr;- Y' G z0 g; |7 [4 ]* K
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 o3 @1 c$ N% u' u' I2 B! t+ J! } VariantInit(&pokeVariant[1]); & J+ t6 y6 x; z& n5 k9 l
pokeVariant[1].vt = VT_BSTR; g* U" f8 j$ t$ D" | pokeVariant[1].bstrVal = itemStr; `8 k$ v* o4 u9 V
4 F4 X* h0 [/ e0 F7 h topicStr = SysAllocString((WCHAR *) L"system");1 d& R/ I" B( k+ L' F% p1 q
VariantInit(&pokeVariant[2]); ! E: P+ _$ C" k- Q, q# e* |/ Z" Y2 ?2 M
pokeVariant[2].vt = VT_BSTR;% X+ o5 l. B% ]5 i# [1 d: A
pokeVariant[2].bstrVal = topicStr;9 `, A. E7 a9 M" T0 w; |) I5 Z' }
8 [4 O% q1 }5 N2 ]* e// Set the DISPPARAMS structure that holds the variant.7 T5 `8 }9 w% a9 j0 g1 h& N
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dp.rgvarg = pokeVariant;1 _2 ~( C+ H+ F% x! S8 G
dp.cArgs = 3;. @- ^# Z0 S2 |3 A+ M1 |" K
dp.rgdispidNamedArgs = NULL;1 C/ {! m/ c$ @( u2 [
dp.cNamedArgs = 0;7 ~$ \" p9 g8 C- P: o. G: }
6 |! |( L- @: j1 N' {// Call IDispatch::Invoke()0 B- C1 ~5 v4 h, C$ ^' i
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hr = m_pDisp->Invoke( - x6 r+ e% }" G& w& h' H+ `: h pokeID, ! O( G3 p5 G6 e% u; Z) v IID_NULL, $ [/ y) ~( H- T; g9 _& u# I LOCALE_SYSTEM_DEFAULT, 7 v/ e1 ?% M2 @) i+ y3 s4 R, \5 k DISPATCH_METHOD,2 E0 K1 R: R, g! T' X/ h' G
&dp,# S- l4 C3 R% C2 E2 D0 H
NULL, ; g! F7 F7 K, w* s) \$ i- w &ei,8 k: M8 q2 H {2 `& d. j* ~; s
&uiErr);/ m6 r" S1 Y$ K% a, S% D
. t' Y. `. q, ?8 | SysFreeString(topicStr); U3 X; I+ d* R# T X1 o7 } SysFreeString(itemStr); - L4 t& P+ E2 F( B# z1 }5 Z1 m9 F SysFreeString(valueStr); . \3 u! `7 N: l: W, ~" t + L. ?6 \1 `9 ?5 x/ ^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??? 5 W# L' E- f' y* r" F8 i5 k' n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????8 N L: w$ q% }7 o8 r$ c/ [& M+ f
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3 l) C! y9 a+ u& o. N8 H2.这是request的程序( M2 |4 q, k7 o- K
// Request a value from Extend: }# Q9 k5 L0 _- p
// 3 B7 |2 M! \' I3 O: P# b1 Q// Initialize the variant that will hold the BSTR. Set the variant's . h( f: \! N5 R// type flag to indicate the fact that this variant holds a BSTR. Place the5 F! d% X/ W! h' v9 s) y6 x" ?
// BSTR into the variant structure.6 U) m% y7 \* q& v$ e- q, w
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 5 v. L) d# g( y+ C- x& i2 L - k7 c8 g; Q7 _& D1 a+ y2 ^ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 G- b3 ]" H6 @
VariantInit(&requestVariant[0]); 0 y$ B* Y0 a' w0 F requestVariant[0].vt = VT_BSTR;- c- q6 R& ?5 g. U6 Z
requestVariant[0].bstrVal = itemStr; q2 M2 _' E& X6 G
, f+ ]( k9 S5 h$ ]/ F topicStr = SysAllocString((WCHAR *) L"system"); - y) M( N2 f6 x+ } VariantInit(&requestVariant[1]); ) G- k0 @. L3 N' ^
requestVariant[1].vt = VT_BSTR; 2 H: |3 K! S+ p0 R requestVariant[1].bstrVal = topicStr;/ E w7 }4 O5 p( ]1 o
# I$ D8 G0 M: l9 d$ i3 `# r
// Set the DISPPARAMS structure that holds the variant.6 E) H8 N$ g Z! c- w8 f. d
4 Q# k. v- {6 F6 I3 m$ y: [/ o+ l dp2.rgvarg = requestVariant; 0 ^3 U4 |- |, J2 O! \! r' h% b dp2.cArgs = 2; . ]7 L B7 `# C d dp2.rgdispidNamedArgs = NULL; ! u# r# I/ D. [# c! r( P' m# H% c dp2.cNamedArgs = 0; 9 Y1 U" q4 z; R6 Z! |# G3 `# Q$ o0 F9 ^
var.vt = VT_EMPTY; ) I% s$ a5 s9 _/ \# a( k4 A4 ]- a! x 5 o9 o2 o. _; p* A/ Z/ x: ]; j// Call IDispatch::Invoke(), f9 Y% i' a$ D
* R+ b4 P0 u4 F9 e) z* J) Q+ u hr = m_pDisp->Invoke( o, m5 c8 u' ~" I7 j2 o% z0 v' ` requestID, ( ^. z9 m8 }% i8 ] IID_NULL, 2 F' J) t! Y! ~( K) U LOCALE_SYSTEM_DEFAULT,' O) y$ }. I! r6 z& f9 a) |
DISPATCH_METHOD,% }8 o: n2 u# S% A+ x4 d! }/ |
&dp2,/ q- [, ~; [& e
&var, 1 z2 S t6 A' O# d9 m &ei, 8 ?9 y, ^* T7 E2 D* }1 P &uiErr);! {- X* g1 P) b7 G. ?
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SysFreeString(topicStr); 5 ~1 H6 y. P4 ~' d1 _ SysFreeString(itemStr);# ^: G* a$ o+ k) ]
请问该程序是获得extend里面的哪个值?; W3 U, \8 v; l; b. ^
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????