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: * W" P& G" Z% ]( u9 nName = (WCHAR *) L"Poke"; 8 a% o/ t7 K2 Y) P / Y9 ?+ Q% ~1 P) I
hr = m_pDisp->GetIDsOfNames ( . K: x% f0 b& G: o IID_NULL, // reserved * }9 a0 _9 T' a% \ &Name, // Array of names to get IDs for5 _+ S' ?: _) f. S1 H
1, // # of names in the array( H. D2 m8 \ G9 I6 T- V) E7 P
LOCALE_SYSTEM_DEFAULT, // System locale : Q* ]2 x3 d. C# P6 r( H &pokeID); // Array of IDs to fill on output ) I8 y) i( n, m, H% h: U 3 B8 ~) U6 o; v9 ?
if (hr)# `; F5 Z2 W, n4 @* C* g4 n3 t4 h) I
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MessageBox ("Get Poke Unsuccessful");: f, h; C# n, k9 s# e4 V" M2 b
return;# z9 H3 v( ^# L2 j% _5 ?9 j
} $ l+ m. W' J# j; K2 k8 Y 6 g# n6 N! l9 f/**************************传递数据给extend**************************************/; f7 _0 l; X* ?9 X" j% L" \
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); + B( k( ?2 L- y! ^! o, y( t- } 2 k; m5 l/ K/ V C3 y L valueStr = SysAllocString((WCHAR *) L"1232"); ! t, ^3 s& Z+ [0 o. n5 |4 i' F% a% c VariantInit(&pokeVariant[0]); ) E3 X1 V+ E' M6 c: @9 _; J, k! V pokeVariant[0].vt = VT_BSTR;& @" h. v& V: G+ L# v
pokeVariant[0].bstrVal = valueStr; : x7 w9 C" `1 }. M. q 3 `* ~; L* m' \- f- u$ X itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 }/ `; m; f& i
VariantInit(&pokeVariant[1]); ! a8 }- e3 U/ l9 \2 O pokeVariant[1].vt = VT_BSTR;3 e3 S7 @( s$ v3 P& v' C
pokeVariant[1].bstrVal = itemStr;4 H1 ], ~* Q' f' _
) n. |7 e% g, I" r% { e/ D7 D topicStr = SysAllocString((WCHAR *) L"system"); / | Y7 X" V: n1 u2 }4 R. y VariantInit(&pokeVariant[2]); ) N1 c4 M& @8 {' U
pokeVariant[2].vt = VT_BSTR; " [ c9 ~* n1 E0 M6 X1 o pokeVariant[2].bstrVal = topicStr; # K: Z% |5 i; Q# } 2 k/ |& ?5 G: Z T// Set the DISPPARAMS structure that holds the variant. 7 T- \5 J/ J7 I. I9 X, W* ]) @7 }* v! m6 \6 X" j2 M% S
dp.rgvarg = pokeVariant; : ~4 d, N Z+ N" o, d4 X& l dp.cArgs = 3;/ X' k2 D5 q2 s0 _0 z$ Q
dp.rgdispidNamedArgs = NULL;) T; }% z) Z( k' O9 k- x
dp.cNamedArgs = 0;3 C, ~+ ]- n# c2 V
7 d( m6 J+ d: a: S$ g+ L// Call IDispatch::Invoke() , S& E* N+ P2 v1 F2 ?' j ' z, _( H) ?' C) q; H# z7 p hr = m_pDisp->Invoke( + p/ O% B. a8 ?$ p pokeID,* A1 X1 \4 D3 e; r& ]. S9 s2 E
IID_NULL, $ c2 ?- R! q) J LOCALE_SYSTEM_DEFAULT, ) X* A) I3 r. O! a4 W$ K DISPATCH_METHOD, ! @1 O5 f, X9 B$ N H &dp,* T& Q/ _ W: E* w9 |
NULL,6 H B4 I4 m+ N* ~/ `8 Z, d5 H
&ei,/ f) h+ F: y3 N# g
&uiErr);: ?. ?* T, Q- W- y( _
; M ~+ ^3 F# q SysFreeString(topicStr);! A9 r) m- O7 z
SysFreeString(itemStr);4 O& q1 y$ p/ \% Y
SysFreeString(valueStr);* {8 G) q) a- l+ |. n9 U2 d% f4 x$ i
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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??? 1 B2 y2 z! I w3 p# F1 X: T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???? g p6 X, t3 x! x. {. m
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2.这是request的程序. r% }; X+ O; |* `+ o% S# X
// Request a value from Extend 2 m- b1 D( D9 I7 q; i, a* j; o) r4 x. n// * V8 B1 e% E+ b! r M0 d9 g3 j// Initialize the variant that will hold the BSTR. Set the variant's3 v+ r9 ` ], a0 X1 o) ?9 d- {* J g
// type flag to indicate the fact that this variant holds a BSTR. Place the # q2 `- k* V8 {0 i# d$ Y5 @// BSTR into the variant structure.) N2 J- z* o% j- W: S
' | H( n6 f% g- f1 O9 h( ^: i requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); % y: Z* X- S% O _ k. I . @/ Z+ u! {( o$ v) v, C8 t/ h itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 W# m6 g$ R. G6 S VariantInit(&requestVariant[0]); ' P# r3 n3 V0 I! R" ~0 R. [6 X
requestVariant[0].vt = VT_BSTR;4 L9 V" z9 Q, P1 e
requestVariant[0].bstrVal = itemStr; 0 } K' |/ r5 M! l8 G$ W! l3 V9 n3 a! Q) b6 O$ y% i! z
topicStr = SysAllocString((WCHAR *) L"system"); , W, Z, Y- z. G# [; G VariantInit(&requestVariant[1]); : d. v, [) ]6 S2 S o/ ?6 s3 P requestVariant[1].vt = VT_BSTR; ( k! O2 T# N4 t5 B requestVariant[1].bstrVal = topicStr;" S9 r0 E1 S- d$ F- E+ d s
% x" _9 h6 t. W8 d1 f// Set the DISPPARAMS structure that holds the variant. / i- N2 z. D3 ~ 7 Z, [6 G! p* t2 b. p dp2.rgvarg = requestVariant;: s$ s# {6 a* `
dp2.cArgs = 2; 4 N+ W5 ?7 m8 u6 n. i dp2.rgdispidNamedArgs = NULL;6 |, \" y1 S. I8 }: n$ b; K! g: R
dp2.cNamedArgs = 0; : J' D$ f0 Y! [. Y' ~ i; |1 @$ C1 _
var.vt = VT_EMPTY; 8 J' G, k0 M1 v3 R6 Z* r+ d9 T5 u" S8 O* W" A' b! Y* c
// Call IDispatch::Invoke() 3 [5 h4 ~/ Z- T " f ~; j: }3 h- I hr = m_pDisp->Invoke(& c* [+ W8 ]$ y! I, K/ Q
requestID, & w5 u. Y+ W% Q F IID_NULL,0 H% E5 H4 n! t- [, w- C5 @: x
LOCALE_SYSTEM_DEFAULT, ' ]3 E7 X! R% S9 R i% q4 \9 n, v DISPATCH_METHOD, $ b5 H) z* s! Z; S2 [3 h &dp2, ; x* P3 g& z; \1 E. V &var, ) W% N6 X( [: U# O3 x `0 l }9 v &ei, + _' O, X; w( a% s1 M! o6 m$ W% r2 t &uiErr);( ?; r+ u3 |/ k6 p7 ~; _7 |
7 o! ]1 }4 H* r1 [. e" |' B4 }, s! T SysFreeString(topicStr); : ] s" t5 r2 R R' I+ g( [ SysFreeString(itemStr); ) M ~5 }( c, ~5 l$ [请问该程序是获得extend里面的哪个值? 9 `1 A& o) H I& {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????