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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:
: F* R: W% B9 j/ l0 P( W- t; GName = (WCHAR *) L"Poke";( [' D; Q* E& x5 c9 }
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hr = m_pDisp->GetIDsOfNames (0 X3 @5 |! W; C0 J. y- s
IID_NULL, // reserved6 I4 s% i% {2 T! ?! M0 ]
&Name, // Array of names to get IDs for
3 B% i3 \1 g# `# {4 X6 E z4 H 1, // # of names in the array. Y3 E O& i |) h: P- I" y
LOCALE_SYSTEM_DEFAULT, // System locale8 q1 T% E* B) {( y8 t# S
&pokeID); // Array of IDs to fill on output; Q6 V8 {8 ~6 B% v9 [# [
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if (hr)
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MessageBox ("Get Poke Unsuccessful");2 e- H# o, T+ t9 x
return;8 B N+ E' ^9 i7 j) l; f/ D
}
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1 u) {$ @$ \. d/**************************传递数据给extend**************************************/3 L/ U; i8 d# Y) s6 V3 E5 u
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);0 x/ v0 R) @ ]* V
# c* K; h; N1 e3 e, u4 n valueStr = SysAllocString((WCHAR *) L"1232");
: g: a( w! ~3 x; d: o7 b8 l VariantInit(&pokeVariant[0]); ( u) |: ~5 k, }; c4 ]. G
pokeVariant[0].vt = VT_BSTR;: F# E0 `: X A8 f! @0 B# F
pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 K0 r8 T' N( R& O2 j
VariantInit(&pokeVariant[1]);
. o% y7 P1 g$ s pokeVariant[1].vt = VT_BSTR;
. t/ `8 @* f8 B1 D* |9 h- N3 T/ @ pokeVariant[1].bstrVal = itemStr;9 x, _8 N$ D; M& k& j6 P' ]
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topicStr = SysAllocString((WCHAR *) L"system");' d8 S ~/ Z8 J
VariantInit(&pokeVariant[2]);
+ y( T! E( A: Z pokeVariant[2].vt = VT_BSTR;
6 c' k& l- w$ a" H, | pokeVariant[2].bstrVal = topicStr;, W) V# d5 ` _& R
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// Set the DISPPARAMS structure that holds the variant.# T& |. `7 E& [+ P i
0 X6 K; R6 H' i5 } ^" s dp.rgvarg = pokeVariant;
9 T5 j7 {; O5 V* j# u dp.cArgs = 3;6 r! [3 M, F: R9 g0 C# _9 `; A
dp.rgdispidNamedArgs = NULL;
9 M0 n( v/ D! q" T( @' x dp.cNamedArgs = 0;% z3 f, D8 c8 u* ~" U
+ I. D) m q4 u& B# x) `// Call IDispatch::Invoke()5 t7 F2 O! z4 y5 o6 z# n! r
5 Y1 D5 G2 M6 q3 I7 I6 d7 J hr = m_pDisp->Invoke(
- r r& ~# t, ~; w/ j pokeID,6 t0 @ p; r3 T5 R7 @# v
IID_NULL,' i8 K( S2 j& G
LOCALE_SYSTEM_DEFAULT,
# Z7 y7 c4 G2 \3 N DISPATCH_METHOD,/ Q$ X( T, [# S4 w
&dp,
# P5 ]% R* t+ p3 b: f; t+ e+ _; c' S NULL,
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&uiErr);
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SysFreeString(topicStr);' U2 I3 D3 e0 t) h! r
SysFreeString(itemStr);
- \: K! G2 L0 w7 K0 } SysFreeString(valueStr);
4 _7 A: D$ ^" P. A+ ]3 {, k: H1 {- A- e( W) l2 R& w1 T$ 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???2 {5 u$ [3 \/ P! \$ Y/ u
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????0 [# b) j1 z5 z; q' Z
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2.这是request的程序
4 d) A: l9 c8 ]" g// Request a value from Extend: [6 N0 g! b1 e; P# b8 }
//$ V8 m) c7 c4 d) {8 v( V
// Initialize the variant that will hold the BSTR. Set the variant's
1 n8 n# i) ^; T+ _4 A" _7 Z// type flag to indicate the fact that this variant holds a BSTR. Place the
; d3 B+ W9 O4 ?8 Q* }5 ~// BSTR into the variant structure.
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);6 Z9 {. ^- a- m) M
0 C i/ [1 [+ Q% V, x; {
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
* |: s9 W, ?, f VariantInit(&requestVariant[0]);
# U$ E) c) @- o1 G1 C requestVariant[0].vt = VT_BSTR;: l. y" _& S, d$ S- U5 f
requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
3 Q( g2 X; b# U4 A- k VariantInit(&requestVariant[1]); $ c' ^$ C: L# ^* @- X0 u" i
requestVariant[1].vt = VT_BSTR;
& J0 d7 R# E' w. p6 b requestVariant[1].bstrVal = topicStr;; ?! d* C% }! A7 q4 l5 j( ~
" e1 v. T9 M) H1 u2 n( m// Set the DISPPARAMS structure that holds the variant.
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dp2.rgvarg = requestVariant;: W' I G: y$ l8 I" F, z% f
dp2.cArgs = 2; S6 B+ n3 x5 Z1 N Y) ?
dp2.rgdispidNamedArgs = NULL;
1 L& l5 j8 T* X' ] dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY;
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1 l1 S$ S' q$ \// Call IDispatch::Invoke()% Y" R4 _" b! b4 t# {
: z) k, N! V4 T& \0 A% `1 L hr = m_pDisp->Invoke(
6 Q$ i0 {. K( h; [8 E requestID,7 _! i0 f$ R+ W0 O C
IID_NULL,- e5 H3 u4 d/ y" l
LOCALE_SYSTEM_DEFAULT,% B4 Z+ {! A: o. a C
DISPATCH_METHOD,. a( O5 {- O6 T1 R- [
&dp2,# S- v( i% X g
&var,. c1 x- u! W- d9 [
&ei,
: B$ h1 |# m. ?& |# d5 ~: T e: ~ &uiErr);: F2 }1 ~! w3 B) \. d' ?3 n
( B- ?* d1 X1 P l SysFreeString(topicStr);4 Y" B. P, F0 \- ~% D- O
SysFreeString(itemStr);
8 c( c1 v: B" f# o9 ~+ e! v请问该程序是获得extend里面的哪个值?3 y |" G$ ~' i& o1 X/ ]
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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