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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:
' h0 V6 N" T* Z# J }0 @" @6 B$ PName = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (
" S. @, y- i$ F8 Q( p" @ IID_NULL, // reserved" R8 C# p4 d$ x
&Name, // Array of names to get IDs for
, |, ~' [1 Q1 g) G( R 1, // # of names in the array$ V7 A7 o; M* }& k9 n
LOCALE_SYSTEM_DEFAULT, // System locale9 m. P+ W0 c* m- C- b! c
&pokeID); // Array of IDs to fill on output
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if (hr)
3 O" ?; s v$ V- A {
/ N* T& _; A" b3 X4 T MessageBox ("Get Poke Unsuccessful");4 A* x& E7 T( a/ }% N% U
return;
% C5 X0 y8 x! v j; G4 ~ }
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6 L2 f* g% V* T, e' ?* C/**************************传递数据给extend**************************************/
9 a* c7 @5 p4 A8 }3 e R$ K pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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4 t) M Z5 x. s# P# [ valueStr = SysAllocString((WCHAR *) L"1232");
' g( r2 t/ z+ D4 H' M2 Y2 R VariantInit(&pokeVariant[0]); 0 e( h0 I. V4 P1 r# h6 w! l6 X
pokeVariant[0].vt = VT_BSTR;
9 S; @+ L& W, Z- R( B8 J7 p7 a pokeVariant[0].bstrVal = valueStr;$ j8 V n, F6 o4 w- q0 E5 @. O1 E
( j6 s3 w: `! g L itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" R9 K6 D* D6 Q
VariantInit(&pokeVariant[1]); ; ]4 |. U: {2 h& I
pokeVariant[1].vt = VT_BSTR;
) `( n6 w( E" M1 W pokeVariant[1].bstrVal = itemStr;
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0 D( d+ U5 `4 D3 _0 d topicStr = SysAllocString((WCHAR *) L"system");( z# g( T( Z/ B! ?* y. l
VariantInit(&pokeVariant[2]); 1 b' _4 } A- h! @, s s8 J6 G
pokeVariant[2].vt = VT_BSTR;3 N/ y% t. j* Z2 Q# Y
pokeVariant[2].bstrVal = topicStr;
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/ k: F% l! c3 W' j; }// Set the DISPPARAMS structure that holds the variant.( t J" W" B z
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dp.rgvarg = pokeVariant;8 X8 ?% o2 k3 w, A) L! U* r
dp.cArgs = 3;, \- I2 c9 C2 Y1 e
dp.rgdispidNamedArgs = NULL;+ q; m% z6 I2 Q9 \$ I$ r" M" T! e+ J0 b
dp.cNamedArgs = 0;" e% A& z5 n* ~
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// Call IDispatch::Invoke()0 Y$ q, S6 M# U# y
2 [5 j; K6 y' p$ c' B hr = m_pDisp->Invoke() E' z0 F6 E& S& c7 L& f# Q
pokeID,
; G2 r F4 ?: q( i IID_NULL,! o0 P$ R1 K) v1 v7 P" c- l
LOCALE_SYSTEM_DEFAULT,, [9 T6 t5 A' _
DISPATCH_METHOD,
. ~( D) ~/ g1 Z4 i. ~ &dp,
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&ei,& s7 M: f. M/ [7 o. h
&uiErr);. k* Y" C9 U: K9 D) F
. |0 r$ `! M4 C4 {0 w) d5 d# b SysFreeString(topicStr);+ l$ I- d3 k1 V
SysFreeString(itemStr);
, R, n( {" O% `- R# U o SysFreeString(valueStr);
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3 A* d, P4 g" O& y8 ~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???
) f/ D/ ~" g! J4 x( x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????% i5 t+ M5 j( r5 z
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2.这是request的程序6 _: K. Q" s- Y- |& b
// Request a value from Extend
" T( a1 M2 O& e& S8 Z//
+ @1 |! p8 K4 N: l5 p# \ h// Initialize the variant that will hold the BSTR. Set the variant's
: y& g' v3 L$ P, A& W; \) L4 P; q// type flag to indicate the fact that this variant holds a BSTR. Place the
* |/ P2 J2 m4 P% k8 q D// BSTR into the variant structure.: @! ~/ I$ b( T% d
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);% u) x" T) X: P( i: m2 {
. H* k; ~4 h" R Q7 u8 k itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
, g4 p0 V+ @2 f; b$ f) e VariantInit(&requestVariant[0]); . V- j* a B# u; O
requestVariant[0].vt = VT_BSTR;
4 e+ _' t2 W5 c/ f( ]; ?5 G( H9 o requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");" y) n& a, R3 o4 b; ]+ a5 G
VariantInit(&requestVariant[1]); 7 |' H( F8 Q0 c# M$ ]
requestVariant[1].vt = VT_BSTR;
, k/ ~! j& Q8 t# w. W a& d5 {/ f) | requestVariant[1].bstrVal = topicStr;
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4 S4 z; j3 |. t// Set the DISPPARAMS structure that holds the variant.1 V6 }, {; d$ g% ^+ I8 Q
" n! N o3 |! {4 v: H dp2.rgvarg = requestVariant;5 b; y! q1 ^9 T: r% G r( z9 @ T
dp2.cArgs = 2;6 j4 y# J6 T) }0 B
dp2.rgdispidNamedArgs = NULL;
% \2 y8 W/ U1 W- R dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY;! N$ }$ J4 d0 ~" v/ E& ?0 O
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
9 n. z+ m3 i, }% p$ x requestID,' ^7 G7 O5 J6 f; I
IID_NULL,- e& @2 Y: A! j; h5 K0 L. F j
LOCALE_SYSTEM_DEFAULT,0 l. o- f7 x. X' B
DISPATCH_METHOD,
) y5 _ Z6 w, F7 } &dp2,
, A' `1 X; b! W/ Z `0 Y- p &var,
0 d6 i5 ?0 @$ s# M/ y8 j1 q &ei,
j0 ^5 `* Z3 ^ A$ I. E &uiErr);
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: N- h4 @$ g) @& ?/ g' }# c ? SysFreeString(topicStr);6 d, @# k* G Q h
SysFreeString(itemStr);
1 S6 N0 q! c; F# C! P/ k请问该程序是获得extend里面的哪个值?
4 W8 e$ ]: j5 p& i S$ c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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