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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:
1 }# b: D9 K$ r$ s" R! KName = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (/ z3 I, U: P3 }- _, ]8 z
IID_NULL, // reserved/ q6 z5 V/ ?" S, K. x
&Name, // Array of names to get IDs for
/ W) u6 F' h$ n! ?* I 1, // # of names in the array
$ B, z8 \& m' ?2 w$ Z; O& Y/ f% t LOCALE_SYSTEM_DEFAULT, // System locale' m& d- I$ [: m! I, p% _" F) i3 J
&pokeID); // Array of IDs to fill on output1 Q2 u# S0 t$ R' B4 d
! O! z2 h5 ?, {
if (hr)
* Q# @* S; V2 y1 d0 W, D2 Y) v5 { {
3 T. Z: S e0 |( x* A MessageBox ("Get Poke Unsuccessful");( D7 R/ E% L/ o+ v% c
return;
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/**************************传递数据给extend**************************************/' E# ]5 d7 v& `3 J1 j
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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valueStr = SysAllocString((WCHAR *) L"1232");+ C5 E6 Q' L3 | J
VariantInit(&pokeVariant[0]);
0 t% X0 Y* p2 C8 r8 i. p- y' B% [* ~ pokeVariant[0].vt = VT_BSTR;
+ v |8 l( L3 y4 b3 u pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
a* P+ o# \! R0 p1 j& A2 x VariantInit(&pokeVariant[1]);
7 u2 d" K9 F0 Z0 k pokeVariant[1].vt = VT_BSTR;+ I$ z3 v- O0 o% [5 o
pokeVariant[1].bstrVal = itemStr;, |% h2 a1 O, q$ k/ p& B! ]
# D6 j1 D( f) l- ^ topicStr = SysAllocString((WCHAR *) L"system");8 O' N0 D* g% n( y. D
VariantInit(&pokeVariant[2]); ( _& m! \" O! A3 n% \
pokeVariant[2].vt = VT_BSTR;% I5 x( y# e& V
pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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. n4 I5 X% p, u3 K dp.rgvarg = pokeVariant;2 m+ v$ ?6 L2 i: w4 ^, N
dp.cArgs = 3;
. T+ D- {0 Z; U/ [+ E" H, z0 K2 U+ z dp.rgdispidNamedArgs = NULL;
9 Y4 C8 f* I; i3 j, I dp.cNamedArgs = 0;/ u# R3 N+ b5 a# v9 S1 \
+ J X" m. r( P X6 ^
// Call IDispatch::Invoke()
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% l' ?6 k5 u4 v6 q( P, f) y hr = m_pDisp->Invoke(
; [2 K/ L& ^4 W' j& c& L pokeID,2 _$ k3 C3 r/ n; v
IID_NULL,
' `% b; h6 _& A R6 D0 S p- B" A LOCALE_SYSTEM_DEFAULT,5 o$ e- `6 t) R8 i3 Y5 n3 P" f
DISPATCH_METHOD,
% V! ?. v: l2 N0 V" K &dp,! K- V% L- r, }0 ]7 S! C7 T
NULL,
8 z6 M3 I! b0 S6 a0 ]) u: J1 L &ei,
& s" w6 ]0 g" r1 R# Q! `6 { &uiErr);9 i) o% k& H: ]5 N
7 m- F7 z$ O! o6 A& u
SysFreeString(topicStr);
. D; P0 Q O$ M/ l$ [: A/ Z F SysFreeString(itemStr);
2 n5 m! q1 v2 \+ ` SysFreeString(valueStr);9 t- p4 r9 s7 Q# M) X
% h+ n# d/ f9 O
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???* L' M6 w! V0 y& j( R3 c0 u/ p- Z
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0 t4 p0 A, e& N! U# ~4 \
// Request a value from Extend
% U- M5 F' X3 {# C9 ~4 T+ m//
: Q' g( J3 F$ z3 D2 u// Initialize the variant that will hold the BSTR. Set the variant's8 _* c- C1 {9 v
// type flag to indicate the fact that this variant holds a BSTR. Place the( a% L0 `# Z( U; [- f$ S/ X' o
// BSTR into the variant structure./ g& j& A+ n: U" f$ s5 k
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
' I8 L% Q3 R; m, [% r % X- d3 q* V; U2 x7 M
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
( I- g7 [! K' z0 r VariantInit(&requestVariant[0]); 6 J+ i1 u6 P2 d9 m! w, X
requestVariant[0].vt = VT_BSTR;
( m6 n) ~( d7 Z2 X* { requestVariant[0].bstrVal = itemStr;0 o: H* R; f1 S& d1 ]' i. h5 F
* \. I S8 _7 Y8 A% ^ topicStr = SysAllocString((WCHAR *) L"system");0 i( |3 }* Q/ y4 ^* b
VariantInit(&requestVariant[1]); 1 \ o) P2 ]" j& g* y( ~
requestVariant[1].vt = VT_BSTR;
+ w w8 c, {1 y requestVariant[1].bstrVal = topicStr;
9 c) Z( w! a2 \" z6 h) y0 p3 o
' c" U+ d+ J1 t$ T/ [9 \5 d: o// Set the DISPPARAMS structure that holds the variant.5 ~( b1 f, J: G6 d
* q' j9 C: }9 A0 a- k W dp2.rgvarg = requestVariant;8 e z7 {& o# v3 x$ O3 l! P7 W2 f
dp2.cArgs = 2;' F- C" s% D7 \" `* ^/ I M& B$ s
dp2.rgdispidNamedArgs = NULL;
( `' x% @6 ~& a) l3 ^ dp2.cNamedArgs = 0;
. ]9 M) n U y6 b/ y' m q
1 ^1 ?2 Q) E; Z# h& ^) }" w5 l var.vt = VT_EMPTY;4 g! |8 q: a6 S$ [9 L* r
4 j. h x& i& Q
// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
5 ]' h5 W3 O4 I9 a/ M5 @+ ^1 A$ { requestID," v6 W8 O8 t; [7 O* G6 J- U
IID_NULL,
5 `+ W; F! J( m5 Z, @# p9 E7 Q LOCALE_SYSTEM_DEFAULT,- F+ x) F1 ]. L6 ~2 g- W: b& M8 m* a
DISPATCH_METHOD,/ r ^& C+ _1 J7 s, ~) G1 P& a7 x
&dp2,
! `! J7 X& A# ] &var,# M3 ~- i4 g; s, X2 N. L# b- {
&ei,5 Q# t, U. e1 h" R- x! J. L5 e
&uiErr);% H1 p, |) N& Y' ^8 M5 z6 w; T& q! _
* ]% A+ `1 a' U% C- R SysFreeString(topicStr);
! v2 Y. Z1 ~8 }. Q" Q+ Q SysFreeString(itemStr);' F% c% y! M2 @$ |9 R" L2 S' m6 B
请问该程序是获得extend里面的哪个值?9 X/ J' ~: D- [& I3 n; ?' O
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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