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5仿真币
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:
, {/ U7 w* @$ e! [& S" bName = (WCHAR *) L"Poke";
5 m; N; {4 U2 }; P( e8 _
( D9 g. _$ S4 @0 A# r" Q4 `: Y hr = m_pDisp->GetIDsOfNames (9 R* w/ X+ V9 m+ y0 y8 i
IID_NULL, // reserved
+ L. E6 o$ d* A; @1 U/ \ &Name, // Array of names to get IDs for
. ]2 \* I @" c. e( J 1, // # of names in the array
5 g; A" v/ b5 p+ |. d LOCALE_SYSTEM_DEFAULT, // System locale( w# j7 Y5 X! V5 H% m
&pokeID); // Array of IDs to fill on output
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if (hr)9 m; f0 s; \) n4 L
{
5 Z7 x. ?) J9 v" S6 b' j3 W( e MessageBox ("Get Poke Unsuccessful");
* l1 L1 a& j! _, m" N! k5 n, o8 M return;
5 s5 J3 d! p. S! v5 ?* O0 T9 z }
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5 z0 L! n) p9 M' R+ ^3 j, [7 w/**************************传递数据给extend**************************************/1 o) {' U% D. H/ F5 a" m
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);* m; K$ [* E* Z5 _
2 `" P; {" R6 A2 k8 Z valueStr = SysAllocString((WCHAR *) L"1232");
, B! U) B1 R, w VariantInit(&pokeVariant[0]); 1 m8 n9 f- t; k$ p9 N! [
pokeVariant[0].vt = VT_BSTR;. y! J- S t9 a+ S' T
pokeVariant[0].bstrVal = valueStr;1 r6 |7 J/ j; t. E" B- z
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
; q( ]) p3 E! H9 M* s2 f VariantInit(&pokeVariant[1]); ; V: e& S" w- p* K$ j) {
pokeVariant[1].vt = VT_BSTR;+ p9 _* c( s% O! D' D
pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");4 H$ R; M( F$ H/ [
VariantInit(&pokeVariant[2]);
- i+ d( M: E' V4 O2 g/ d+ B: I+ _ pokeVariant[2].vt = VT_BSTR;
( D: l) L O+ z! w* [* {; f/ Z pokeVariant[2].bstrVal = topicStr;
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; `4 j2 q; e. @; g% a g# R// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;0 s# j5 U! X7 E- L6 ^ {8 N
dp.cArgs = 3;
2 t# u, F/ m+ u# k8 z) I' _- i dp.rgdispidNamedArgs = NULL;3 o0 T, C$ Z7 I$ U
dp.cNamedArgs = 0;; p l; S$ h6 W/ q
( X( p! _: }' W8 y// Call IDispatch::Invoke(): m( S/ o4 y) C$ u2 e. ]& _
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hr = m_pDisp->Invoke(1 e% D* V* l1 @# T$ e" X
pokeID,
6 \, a* E' u4 Y, _ IID_NULL,
7 _' R! Q& L( q3 g LOCALE_SYSTEM_DEFAULT,
1 q# e9 I$ O3 W6 E0 v8 ?: T DISPATCH_METHOD,
3 }+ }* |( M6 m% {, Z6 ?& e; Y &dp,
. o! s8 L# F. ^ NULL,
6 [( c l: x. G2 R0 i0 U &ei,8 l' F* h" h) M( K
&uiErr);
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SysFreeString(topicStr);
; Q$ C* e% {( y9 P SysFreeString(itemStr);+ W- @; S( F+ T1 {! Q
SysFreeString(valueStr);( N8 O* P1 e5 u: _& m- p
1 v! l& @& @6 H! |* F( G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???! X* q/ x- Y; J0 _
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????4 ^' f$ o8 S% u' K7 v
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2.这是request的程序# R; H4 F) C. f: o( Z. q6 l7 T
// Request a value from Extend, `) C4 S9 Q" m
//
. C; z# j9 }7 ?5 A) ~// Initialize the variant that will hold the BSTR. Set the variant's
2 r. V( P& M6 I# n" b, O// type flag to indicate the fact that this variant holds a BSTR. Place the
9 ?% u+ o4 I5 I" o+ D/ C// BSTR into the variant structure.
. B; [, X; ?" R
" \& S: o. l& e requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
, d1 P# X) s; e5 ?3 Z6 J VariantInit(&requestVariant[0]);
# ?! Q# i: h0 p requestVariant[0].vt = VT_BSTR;
& V/ C& Q. ^" a, i3 ^ requestVariant[0].bstrVal = itemStr;* J7 P. J" L) |! v9 a
4 t: Q6 v* i2 A: \6 f topicStr = SysAllocString((WCHAR *) L"system");
8 b" e1 x9 g+ m" X" t VariantInit(&requestVariant[1]);
0 {6 n- c2 h! r9 m. t: r" S/ i requestVariant[1].vt = VT_BSTR;
$ g; F& ?% \ \. J v# c5 Z requestVariant[1].bstrVal = topicStr;2 S0 c# X8 U6 d8 g, B
( ~" s- ?7 n" q, o7 K// Set the DISPPARAMS structure that holds the variant.9 Q& A5 x3 W3 X( u; ~# t! C
) Q$ b6 M3 X7 T dp2.rgvarg = requestVariant;
* p+ P1 [* w5 N7 ? dp2.cArgs = 2;
: @: m% V: e5 N& d+ R" K* ` dp2.rgdispidNamedArgs = NULL;
( I+ H1 Q8 L% m. U0 J dp2.cNamedArgs = 0;8 d; U0 ]. x0 U" N2 [4 f
( A( u9 y8 i/ F0 S+ z% O' g var.vt = VT_EMPTY;
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, g- \6 l+ `9 O" s$ l) }// Call IDispatch::Invoke()
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8 ?" s# ^+ S! t+ p- c; T0 \ hr = m_pDisp->Invoke(
( o. u7 i# f6 v8 b/ l' u3 Z/ P requestID,1 o+ V# U4 C1 {, @7 l
IID_NULL,
$ J" d2 k7 Z k! Y; g0 B- c w LOCALE_SYSTEM_DEFAULT,
8 y2 U( ~0 W( ]& H. r- }: [# S1 ` DISPATCH_METHOD,3 T: |% p! l) R/ ^! c
&dp2,
' \% ^( E! S; K8 w; y &var,, r- p9 G0 z& i1 L1 T
&ei,8 y1 y [) W- V O5 x8 }
&uiErr);
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; S H P2 R5 j, Z& d SysFreeString(topicStr);+ P; M2 c2 P4 V4 `' }8 G
SysFreeString(itemStr);# c! B7 I2 o6 R
请问该程序是获得extend里面的哪个值?
* |7 G [5 @* P5 K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???? |
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