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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:! `7 t9 Z" N" L& B+ p. `
Name = (WCHAR *) L"Poke";
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% K# n9 \% w! |3 n hr = m_pDisp->GetIDsOfNames (
/ P6 m* `$ A# M' `7 q2 X IID_NULL, // reserved: ? o2 c. z; I( Z
&Name, // Array of names to get IDs for! \2 o! P1 y0 u B: C4 t' n6 y
1, // # of names in the array
' w+ P- ]. ~. j7 C" o* V! w LOCALE_SYSTEM_DEFAULT, // System locale3 ?" I) j4 I2 }# d( U2 J
&pokeID); // Array of IDs to fill on output
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if (hr)4 B! Z8 `+ C' o' t! ~; B% }4 {9 W
{
# _, {* |( Q, Q8 |5 z( f MessageBox ("Get Poke Unsuccessful");
+ V% p/ `* F+ Q0 }: m return;8 X d$ |' x) Q9 K
}
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2 m5 Y- c7 ]; s4 K/**************************传递数据给extend**************************************/! M$ i6 ~6 P0 s2 _' j! }7 g! H
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);, X6 T1 p) q; D) x, y0 n' y7 B
7 ?; G0 b" n: _" i3 k! s2 w valueStr = SysAllocString((WCHAR *) L"1232");
% g! G1 s3 Y& C9 u$ j, \5 p VariantInit(&pokeVariant[0]);
1 R) m# [& Z' a$ t* B; o# a2 l9 n pokeVariant[0].vt = VT_BSTR;
" |" F# k) f2 l0 I) j! w pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 i0 } q0 L( m9 C7 H1 m. W0 a3 {
VariantInit(&pokeVariant[1]); . L$ I8 |. a" o% A
pokeVariant[1].vt = VT_BSTR;/ c+ e7 M/ P2 m, f, X
pokeVariant[1].bstrVal = itemStr;& a4 w% _4 y: v% _1 Q
7 O3 A6 Q5 D" Q! t. l topicStr = SysAllocString((WCHAR *) L"system");
1 I8 \( h# G+ F: x& K VariantInit(&pokeVariant[2]); ; J& ?7 N# d$ [8 M0 e" u% m
pokeVariant[2].vt = VT_BSTR;
$ n: X* L9 ^4 I6 t% Y8 ]7 N pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;
' P+ A/ l5 E5 I( q& Q2 ~1 [ dp.cArgs = 3;
* q6 W3 S3 C* ^) D dp.rgdispidNamedArgs = NULL;
1 p& A+ f" G* R1 R q3 w dp.cNamedArgs = 0;1 Y* Q1 z1 _. @/ `) X
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// Call IDispatch::Invoke()5 B0 M0 J e, i2 Y7 U8 k
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hr = m_pDisp->Invoke(
. Y: ^/ U, N$ r5 b+ } pokeID,
1 Y6 e$ ?4 \9 b' `. v IID_NULL,
3 |# k4 K# I0 \* d1 x1 \2 f' E; Z LOCALE_SYSTEM_DEFAULT,1 g: a2 c6 F0 D& p+ Q- G& H" W
DISPATCH_METHOD,
) T& M9 J J/ ~& v- | &dp,
, G; U8 F" L* z, F4 W# M/ t NULL,
0 k: W; z2 P, f$ L! z; `- q1 g &ei,
5 W# {2 l5 T5 W- y- K &uiErr);
+ N' Q' A( Y* N' D$ ^
/ C1 n# Y+ Z. T, _& y& U SysFreeString(topicStr);
! B _ n; I7 E4 r% Y+ y6 H: C SysFreeString(itemStr);
/ V) k; [, B* D6 t0 [ SysFreeString(valueStr);" W% ^2 ]- x* M
1 Y8 j+ V8 K) Z1 b* c9 H2 u% F
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???! S2 S% p/ h k
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????# c% @. I' ~; X5 K& z
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2.这是request的程序
* [+ h9 E4 @( T+ @& L// Request a value from Extend
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// Initialize the variant that will hold the BSTR. Set the variant's
( w% }" t* x0 h% B1 @// type flag to indicate the fact that this variant holds a BSTR. Place the
5 J. [" T3 F& J J, D% A9 _// BSTR into the variant structure.
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2 S5 K2 a6 {7 R/ R requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);# R- S4 O$ @' }* W5 r
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# ]& F4 h4 X, f8 r- i7 u
VariantInit(&requestVariant[0]);
+ N5 T( R& j' Q requestVariant[0].vt = VT_BSTR;
4 Y8 @) F; f; u) y; n- G$ V7 J5 l requestVariant[0].bstrVal = itemStr;
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. y* C8 e" B' r: U! ^ topicStr = SysAllocString((WCHAR *) L"system");' j2 k% ^4 { ~3 b& m' H, x
VariantInit(&requestVariant[1]); 4 r# F+ z+ A& Y
requestVariant[1].vt = VT_BSTR;+ z' b3 s. H$ f7 G/ n
requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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dp2.rgvarg = requestVariant;
# O+ \" z9 t. P, L dp2.cArgs = 2;% Y2 c( `, X1 f1 H9 ^
dp2.rgdispidNamedArgs = NULL;$ c) Q6 j0 {' B X2 d' G
dp2.cNamedArgs = 0;
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/ Z7 p4 I* @% V1 V var.vt = VT_EMPTY;
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// Call IDispatch::Invoke()
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1 x8 @4 O) A) Y; w4 h& { hr = m_pDisp->Invoke(
$ I# _1 ~; ?- J- G; t( h requestID,0 F `; Z/ E* u: K
IID_NULL,3 w$ F- B0 I+ L$ k* a
LOCALE_SYSTEM_DEFAULT,
4 W+ L3 G8 l( M2 M) C DISPATCH_METHOD,4 X% n! t( r! L$ c1 C; L. c
&dp2,
O) V/ b+ I+ k3 u% [ &var,
2 P) a7 x# X: D+ p; m" [1 q &ei,1 b, f2 c. I" @) ~, v- r8 y: @
&uiErr); u3 P T! k; `# F+ |* K
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SysFreeString(topicStr);
Q3 ]$ l8 z9 W" p8 v8 G) H SysFreeString(itemStr);
; q* A. q+ G( o) ?请问该程序是获得extend里面的哪个值?4 k) y7 v' `! S& l% ?
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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