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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:) u- b, Y8 n& a: m' @0 z
Name = (WCHAR *) L"Poke";
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/ c& X d' I2 v3 b* a0 [ hr = m_pDisp->GetIDsOfNames (' l% h7 @' z/ m, V; N
IID_NULL, // reserved' h0 u! A3 P, n
&Name, // Array of names to get IDs for/ N2 B/ \- C8 w. S" v; P
1, // # of names in the array
. f7 K" r9 p( b LOCALE_SYSTEM_DEFAULT, // System locale" u1 n9 `! I/ V) k" ~
&pokeID); // Array of IDs to fill on output
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if (hr)2 M* `' _( {0 y" I
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MessageBox ("Get Poke Unsuccessful");
' b6 m! @ t5 r return;
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/**************************传递数据给extend**************************************/
( i3 e% @4 ^9 Z. K: e pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);2 E* w6 X5 n- j8 o. d8 X
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valueStr = SysAllocString((WCHAR *) L"1232");
" h$ t K H' x2 v* r VariantInit(&pokeVariant[0]);
( ^5 _6 y/ k, ], o* l* B pokeVariant[0].vt = VT_BSTR;
6 w& y1 A3 K, \3 w7 `( I8 H pokeVariant[0].bstrVal = valueStr;9 X$ Z- {2 Y$ `9 E8 w
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ {/ c* G. E( @2 g9 e. @ E
VariantInit(&pokeVariant[1]); . c2 S, v7 q- U |
pokeVariant[1].vt = VT_BSTR;2 e" ]: T2 [- w) b
pokeVariant[1].bstrVal = itemStr;. X9 }9 ]. ~& T) K5 x5 R0 F0 N
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topicStr = SysAllocString((WCHAR *) L"system");
2 G4 ^$ i/ U+ q. o7 B7 h* r VariantInit(&pokeVariant[2]); " E6 u8 d, r5 D- }0 D. J7 Q! _! V$ s
pokeVariant[2].vt = VT_BSTR;
) u$ C2 N* J- q; J9 y. ` pokeVariant[2].bstrVal = topicStr;, b8 \" m5 Q, y+ o( D
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// Set the DISPPARAMS structure that holds the variant.: C2 Y6 [+ N b3 ?7 ~
' j+ u, W* ]5 l* n dp.rgvarg = pokeVariant;
+ C& X: P. I' ]7 ?4 ]4 d0 _ dp.cArgs = 3;) p! S w: k" Q& i
dp.rgdispidNamedArgs = NULL;
W3 j1 T# a* A4 b6 T# r4 X dp.cNamedArgs = 0;
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// Call IDispatch::Invoke(). @9 q7 z) h; z) S4 s+ W6 p
1 p- V! A4 {* ~1 ]8 M hr = m_pDisp->Invoke(
$ u4 n6 u! a- w( w, L/ L pokeID,
1 X; r6 x. W# y. }8 K( U: G IID_NULL,+ b8 N# q+ j |* y5 b7 V
LOCALE_SYSTEM_DEFAULT,# r2 E( b* W# V
DISPATCH_METHOD,( k% R2 E* l! j$ _6 _
&dp,% t! D+ b8 J) V4 q( b/ F! D
NULL,
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&uiErr);( P$ O/ k# i8 F Y& {$ N! S- g
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SysFreeString(topicStr);2 ]# Z9 g; p+ |$ Z+ X7 Z* i3 k
SysFreeString(itemStr);5 }% i/ n9 L1 W5 l2 C# t
SysFreeString(valueStr);
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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???
! S4 j+ `3 V$ a; ]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????
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2.这是request的程序
" E1 W0 A g1 x& Z$ T( y/ O// Request a value from Extend, D+ @; t- q# [( F b2 V3 K
//5 Q0 n0 ?7 L; X* O4 k1 a8 |& O
// Initialize the variant that will hold the BSTR. Set the variant's! M" X! l& M1 J8 K" l0 P; P
// type flag to indicate the fact that this variant holds a BSTR. Place the4 y6 {; _8 H+ C% L6 J7 n* g6 D
// BSTR into the variant structure.
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- W2 K& ~' u: X# X4 R/ e requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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2 G' h# D( a/ F' r( E itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ U/ ?: n8 {+ z( z: S; t
VariantInit(&requestVariant[0]);
, L8 m4 A" Q5 n. c! w4 p requestVariant[0].vt = VT_BSTR;8 m2 A, `% p% ^
requestVariant[0].bstrVal = itemStr;7 b& l- `4 L) n. e! ~: X( G4 H5 G
! }. ^$ q0 {: a$ p) w9 q! f topicStr = SysAllocString((WCHAR *) L"system");- X& k1 I: |% Y' A
VariantInit(&requestVariant[1]); ! N9 B% K9 C! _% X$ U" l
requestVariant[1].vt = VT_BSTR;5 t! {( l7 \ G; ]% Z& j+ L2 A
requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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- T3 _: S( Z1 Q& E% T+ ?4 G6 L3 r dp2.rgvarg = requestVariant;: @' M1 A, F l0 c
dp2.cArgs = 2;* K+ I# U9 z1 K
dp2.rgdispidNamedArgs = NULL;; U; A: V% @6 I9 y2 a
dp2.cNamedArgs = 0;
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1 i# o' K, o/ K" p% P var.vt = VT_EMPTY;
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(3 l% h- K% |& a( k. S
requestID, r8 _" p; s# u
IID_NULL, ~/ B! g. n5 X2 m3 H
LOCALE_SYSTEM_DEFAULT,
/ B) d0 P2 b4 D; v% o DISPATCH_METHOD,( M/ Y6 `2 M/ S0 j. q" V7 F! j) s
&dp2,8 A |1 B/ n/ m7 Q: B1 S
&var,
5 f8 S, G$ s% f) P &ei,% J- w2 a9 r" F3 L
&uiErr);
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SysFreeString(topicStr);
: _5 T* l5 t4 b5 a, V SysFreeString(itemStr);6 h' S0 R K/ g1 j; O Y4 s* ~
请问该程序是获得extend里面的哪个值?# {; {7 _: Q. |5 L; Y
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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