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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:
" N$ K$ K! S8 ~8 _5 _% K. SName = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (
. }! G& g& p' W5 C, k# ^& D, j IID_NULL, // reserved6 o1 N7 X! l0 i$ l% K: b
&Name, // Array of names to get IDs for) f/ ?# ?4 E, j8 F
1, // # of names in the array
) j, y$ B% h, W$ }( F2 T. \! K LOCALE_SYSTEM_DEFAULT, // System locale2 F3 d, I: m) L1 M* x2 N
&pokeID); // Array of IDs to fill on output
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if (hr)2 E: w7 s, Y6 r
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MessageBox ("Get Poke Unsuccessful");# K6 Y/ o7 Q- ^- n+ r5 ~4 Y$ S6 x# U
return;
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/**************************传递数据给extend**************************************/0 V* X4 B5 Y% o5 H0 J8 K+ `
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);8 }+ P+ P4 u4 O% _! y2 b2 O
1 o3 A4 V; H" r' h valueStr = SysAllocString((WCHAR *) L"1232");
$ O4 c" ]. N4 t/ _ A0 q VariantInit(&pokeVariant[0]);
3 Q( A* u. [1 d0 X pokeVariant[0].vt = VT_BSTR;
n, o5 @! `9 l% k0 y! W! f pokeVariant[0].bstrVal = valueStr;
# b/ s& M; Y" M" x0 ^* F" V. ~- l6 p( k h0 p3 F$ ^
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& y* U! V h2 ~! r U5 O6 T
VariantInit(&pokeVariant[1]); 3 f$ _/ m) F: N- ?! p
pokeVariant[1].vt = VT_BSTR;) h; e# Y1 x& b
pokeVariant[1].bstrVal = itemStr;6 I% q1 h ^7 p+ P; ?+ P: K# R+ m
+ ?! f2 W% d! i8 `: | topicStr = SysAllocString((WCHAR *) L"system");# V7 K! I5 J, U6 N u5 @& d
VariantInit(&pokeVariant[2]);
7 N4 {) i6 R3 }' t0 H* M pokeVariant[2].vt = VT_BSTR;7 C4 V3 N+ Q v) j2 S& N/ @
pokeVariant[2].bstrVal = topicStr;
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% `2 n2 V7 L! s, n* A* F// Set the DISPPARAMS structure that holds the variant.
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( m$ n! N! f# i5 y& c dp.rgvarg = pokeVariant;
2 P1 R! `) w% s dp.cArgs = 3;, a& i* `( {3 N3 ]1 N
dp.rgdispidNamedArgs = NULL;
6 r1 R; Q5 ?. w: C dp.cNamedArgs = 0;
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( {8 u: X B }# p9 Z( L// Call IDispatch::Invoke()' o2 F9 U1 v) p' h1 `
# W. G/ C# n# M" Z2 h/ n hr = m_pDisp->Invoke(& }4 }1 ^- M/ w' @; l
pokeID,( `% r- v w$ F2 B1 g1 J
IID_NULL,+ @9 n1 b- X& Y0 t: d8 d
LOCALE_SYSTEM_DEFAULT,) W( ?3 \3 a: `$ ]
DISPATCH_METHOD,- F/ b2 w3 Y6 |* E) x+ q6 J% a# I
&dp,
3 m& E' D4 |$ Y) H+ O) \2 E NULL,5 L. w! l% N0 G# c9 a' B
&ei,
* @2 n8 i m) i, W8 M &uiErr);
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SysFreeString(topicStr);3 `# P; S) w. n
SysFreeString(itemStr);
1 }$ L" u; Q; X/ Z SysFreeString(valueStr);% N, t1 W& o* n: L W6 _$ f
/ B0 J2 D- @4 a. E# x9 ] y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???
( b) z4 i: U' b5 f1 B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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% `. e- b* X3 \" j* }4 }$ K& c2.这是request的程序
1 I7 \( j4 B7 |0 W0 I// Request a value from Extend
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// Initialize the variant that will hold the BSTR. Set the variant's
( U" M- y$ |" H// type flag to indicate the fact that this variant holds a BSTR. Place the
* A5 f$ C! H; } u7 n// BSTR into the variant structure.
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);) U( U( w5 k* w; R' p
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
3 B0 f& f5 @ V& F/ A VariantInit(&requestVariant[0]); 6 O* @5 N1 Q% R* X8 \4 ?6 H6 H$ R
requestVariant[0].vt = VT_BSTR;/ ]; D. Y8 R6 x
requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
1 A& c+ J8 H) K# J VariantInit(&requestVariant[1]); ; Q/ E I+ l0 y7 x) s
requestVariant[1].vt = VT_BSTR;
+ Z8 W0 R& W7 t requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.9 r6 q9 v4 O& s' s. a7 [" J
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dp2.rgvarg = requestVariant;$ e3 X; t$ P! I% U
dp2.cArgs = 2;
; h. f* I! ~$ Z! R. ` dp2.rgdispidNamedArgs = NULL;
* f+ }6 i9 U0 k7 t* W5 ~+ { dp2.cNamedArgs = 0;9 H2 |$ u# ~2 h3 S0 z
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var.vt = VT_EMPTY;! k! ?. f! y( I+ |' R6 }
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
]# v( @4 A/ T: n4 j* U/ k requestID,
$ W* s5 H# @! X% U9 I3 G3 q IID_NULL,5 |" z) [: C' C( m( O( M
LOCALE_SYSTEM_DEFAULT,1 \+ Q$ g \1 M5 \
DISPATCH_METHOD,
8 z8 y5 n: w8 F1 U &dp2,
F; g( f" g0 b& W6 X* x &var,5 k; t" i8 a/ |2 Y, I
&ei,
* o: s. Q5 a# a, ^/ ] O- E &uiErr);
V. i. M# {- _/ u: |8 e( K! ^+ p7 t9 ^
SysFreeString(topicStr);
5 K& A4 C2 }& j+ s SysFreeString(itemStr);
Y0 G k% Z' ?, V3 V! p. N% x( u Z请问该程序是获得extend里面的哪个值?
, K* y* q& J6 w/ T6 z7 Z; ~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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