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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:
+ b! c( a; x% C. G+ EName = (WCHAR *) L"Poke";
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( E# B& `* h' s: Q* o hr = m_pDisp->GetIDsOfNames (% E' D, C) _4 R( Q
IID_NULL, // reserved: S& m5 n& C* b/ M4 a
&Name, // Array of names to get IDs for& l% j4 [$ o/ I* e# Z
1, // # of names in the array+ M7 w; E! ]4 r' f$ h6 f0 a
LOCALE_SYSTEM_DEFAULT, // System locale1 n* L7 ~& q' H6 P; v) R5 h$ v
&pokeID); // Array of IDs to fill on output
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if (hr)
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MessageBox ("Get Poke Unsuccessful");/ [5 E5 s' H* w' F
return;% ~) B2 E9 t& b( ?3 c
}
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/**************************传递数据给extend**************************************/
: x# o" V! k2 [1 B& k9 L+ P pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);8 M& K5 V9 E; F6 U; ]
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valueStr = SysAllocString((WCHAR *) L"1232"); O7 z& M) ]. z+ X% `- }3 P5 Q7 h
VariantInit(&pokeVariant[0]);
8 R) `) H; F: q0 Z/ ~5 p pokeVariant[0].vt = VT_BSTR;6 F3 `/ E1 ?6 Q L# c2 A8 I1 L
pokeVariant[0].bstrVal = valueStr;& [4 F5 o$ n; @1 g' A
& w% W4 ~2 B7 ?9 Q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
/ q" Q0 F4 _/ T3 d VariantInit(&pokeVariant[1]);
3 C7 [0 _# ]) `/ A/ D4 N$ t! ~ pokeVariant[1].vt = VT_BSTR;+ Y: q8 T' q, G+ W9 a' e' ]5 D
pokeVariant[1].bstrVal = itemStr;8 b2 S7 w$ C5 O: O, v2 Z0 ?
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topicStr = SysAllocString((WCHAR *) L"system");
8 A- H4 n {: M1 z VariantInit(&pokeVariant[2]);
3 ]( n4 Q, v: _ z, E2 g# k pokeVariant[2].vt = VT_BSTR;8 o. n" |7 o; j( i) w8 m
pokeVariant[2].bstrVal = topicStr;* ]9 L! z$ v; }( k- Q" X, `
$ ?$ Q- G; A8 B7 X, d: ~// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;; ` E( O2 o6 U6 q6 M) q Q
dp.cArgs = 3;
! u9 z3 L. H2 o+ v0 C1 p. U; i- t dp.rgdispidNamedArgs = NULL;: w$ `. E- K' _2 q
dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()
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. N# j" }# b5 ?( T, ?4 e$ V hr = m_pDisp->Invoke(
8 k5 u1 H& H8 W pokeID,
* Y( y8 ^8 B8 O IID_NULL,) k3 F/ F# x3 f4 P( u2 Z4 J, O0 _) ~
LOCALE_SYSTEM_DEFAULT,$ ?( {8 q& L) l
DISPATCH_METHOD,) b0 ?" H0 T2 W' ?
&dp,
, F5 \' s5 l0 c6 P$ P0 F NULL,
4 C7 O5 O3 O. Z1 Z; F &ei,
/ O# [# g# p V8 C &uiErr);
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SysFreeString(topicStr);
' C2 [! C; d4 U* t+ ]" e$ ~' `' H SysFreeString(itemStr);( s$ B- Y. z8 v5 X# M- f4 x
SysFreeString(valueStr);3 {) ^+ a1 i! k
% Y& J( c* f" S6 J: N6 a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 s5 T+ G+ d$ q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 M, t8 E {5 e2 C( s& O3 O
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2.这是request的程序
: L ?9 e1 O9 _# A& i5 e" V// Request a value from Extend
* K0 w8 Q: {& z2 N( T4 D//
, d8 ]" X8 n4 o9 d+ M// Initialize the variant that will hold the BSTR. Set the variant's+ n" p! R' k+ K7 q0 y) i5 v
// type flag to indicate the fact that this variant holds a BSTR. Place the
0 y: n9 e) f. Z& W y8 S// BSTR into the variant structure.
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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9 t9 g, `/ G) c& e! q% P itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) Q3 t& R* }2 `# a5 K
VariantInit(&requestVariant[0]); : N- Q) P3 G# ?( V6 s7 {
requestVariant[0].vt = VT_BSTR;" u. D( J5 n% ?' M/ A; E9 m
requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
/ D' m" ?; v+ O. H% n VariantInit(&requestVariant[1]);
5 _/ L3 j" r( Y7 G requestVariant[1].vt = VT_BSTR;
4 W4 E! ]7 y7 H0 ~. h requestVariant[1].bstrVal = topicStr;
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$ S+ H: r- u z, u7 t// Set the DISPPARAMS structure that holds the variant.) \2 k5 B# G6 _$ l5 B4 {- y6 c9 k- j
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dp2.rgvarg = requestVariant;) q; {" J6 Z. L+ r2 A4 W' i
dp2.cArgs = 2;- K- T' L' |9 {. [! m/ L) \
dp2.rgdispidNamedArgs = NULL;
- ~5 w4 y! J- Z/ o dp2.cNamedArgs = 0;0 F4 U5 c4 s$ s; @
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var.vt = VT_EMPTY;8 A1 r+ I1 I0 x! P, W$ r' F. S) c
0 b: [$ v% L' P& j// Call IDispatch::Invoke()
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! f( ^# R5 v' I- Q5 y* S* o0 o hr = m_pDisp->Invoke(6 r2 T1 O2 n# X3 |
requestID,0 H9 J* ^0 Q* |# L" O7 w
IID_NULL,
- ?2 E9 Q2 Y7 j2 y7 b. z0 A) D LOCALE_SYSTEM_DEFAULT,
2 e2 @1 q! D4 U. H1 o DISPATCH_METHOD,
3 {( w+ K3 Z3 K& x( \, q, N &dp2,
9 N9 Z* V" H3 l! W &var,
y; e, A8 O. O" t: q &ei,2 A. X, ?) z- H/ S
&uiErr);
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SysFreeString(topicStr); o3 J' |2 V- w5 C) @" ~
SysFreeString(itemStr);& x { a" e* H7 a q( c3 K0 |
请问该程序是获得extend里面的哪个值?
4 w! E' P. z; A5 K$ n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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