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:+ c; I1 X" v1 i {$ U
Name = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (. {" m" K; k" ]& @: M4 a
IID_NULL, // reserved
4 v% r/ y3 z: m &Name, // Array of names to get IDs for% w- c0 d/ X) a- n
1, // # of names in the array6 D9 Y# U" n% n8 l) y c' q
LOCALE_SYSTEM_DEFAULT, // System locale
9 t* k+ q A3 r0 S+ L2 Y: \ &pokeID); // Array of IDs to fill on output/ `" c. ~$ x: m% D% z/ S
4 X) S' C7 S4 x% y if (hr), L$ p/ P1 x9 O! e1 G* B5 ]7 m% N1 L
{
$ b0 |0 U# Y- b" X3 Z8 @* m MessageBox ("Get Poke Unsuccessful");
! {2 Y( r4 F( X" [& O return;- m, H: X- e' P ^
}
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8 | @2 z8 O4 d6 F1 w, m. ~) [* m /**************************传递数据给extend**************************************/, o# _$ D8 c+ z5 r! N H& V4 z' }
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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7 l2 r6 |5 J; w& g valueStr = SysAllocString((WCHAR *) L"1232");
+ {# I) q# {" t" }) E% E VariantInit(&pokeVariant[0]); 7 B A" n9 c. V9 m( e/ {' h0 y6 Q
pokeVariant[0].vt = VT_BSTR;7 }6 g( R$ } b& [8 T7 [* ~' M
pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# U) }- Y8 G! c- N
VariantInit(&pokeVariant[1]);
# n$ R; r4 {2 h pokeVariant[1].vt = VT_BSTR;
" _' k1 d* i) m& b pokeVariant[1].bstrVal = itemStr;7 J& P) D( a; d3 p
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topicStr = SysAllocString((WCHAR *) L"system"); s2 m) y2 e; f; V! @6 [
VariantInit(&pokeVariant[2]); 7 q) P" Z7 b3 H; _) f
pokeVariant[2].vt = VT_BSTR;
0 O4 o) [ S4 ^/ {+ C4 O pokeVariant[2].bstrVal = topicStr;
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( x5 C+ r! U2 K5 l7 s5 F // Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;7 L& L. X& E, L* G9 T: ~" U) d# h
dp.cArgs = 3;) `, g8 H, c8 N0 v
dp.rgdispidNamedArgs = NULL;9 `3 E. K/ y$ ^( T
dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()
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4 @. G F% J& D7 M0 b( s% i hr = m_pDisp->Invoke(+ Z$ _2 G6 d: ~* v1 X, C) z5 P
pokeID,
' R; q* Y+ \; A IID_NULL,1 e6 o" ~/ {$ _6 r2 W& b% m* x
LOCALE_SYSTEM_DEFAULT,; F* ~& a* G5 T- O' Y
DISPATCH_METHOD,; o' r9 x) J4 _( R: c
&dp,
1 e) V$ s. F7 ?! T/ Y NULL,8 V. H' F- g, K6 l: @2 G! x9 D o
&ei,+ s: H* U( W- z$ m, u7 `
&uiErr);
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SysFreeString(topicStr);* x- l2 y# O/ l
SysFreeString(itemStr);" y5 w+ T3 |0 r7 c1 ?' l' }
SysFreeString(valueStr);8 [2 Q5 _* `9 a" H8 l7 b" A
6 ` e% }+ V5 z( m& \: s 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???; W$ H }" U9 B0 A7 r7 i
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????. T2 x2 g5 C/ O+ S3 S8 F* \
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- Y; }! ?! X/ x3 H6 J 2.这是request的程序
! y+ u8 u/ y6 ?. i // Request a value from Extend
" c7 T# d1 |, H6 s/ Y //
# G, I1 D4 d6 u1 f4 [ // Initialize the variant that will hold the BSTR. Set the variant's: t5 A! F& ]1 n E, w6 }# {% \
// type flag to indicate the fact that this variant holds a BSTR. Place the" U/ x) h5 q; B& k
// BSTR into the variant structure.& I& e# H8 d: i1 P! s
G0 i/ s: W) c7 I+ Z2 c# y1 L requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);0 I1 N) O( P- h2 [
9 @0 D" p, A n8 Q9 d8 k! Q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& w6 K9 J Q; h6 [) I
VariantInit(&requestVariant[0]);
a' ?1 @" H! I requestVariant[0].vt = VT_BSTR;8 a; }- a! z& x' e8 k
requestVariant[0].bstrVal = itemStr;
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( M% u/ {5 u( y, _# d! t topicStr = SysAllocString((WCHAR *) L"system");$ l2 ?3 c2 n& ^3 a* ^" l7 w5 m
VariantInit(&requestVariant[1]); 5 X; d+ M* @" r& O) n# W
requestVariant[1].vt = VT_BSTR;4 F) t- Y! f7 T/ X# |- S
requestVariant[1].bstrVal = topicStr;
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. C$ ?3 }! f" I0 N0 E$ J // Set the DISPPARAMS structure that holds the variant.6 B$ Z5 G" @) Q1 J4 B, h
, s) H8 c) D+ V; A, G; x dp2.rgvarg = requestVariant;
8 m c. [4 ]2 _* Y2 _ dp2.cArgs = 2;
; b) \3 w6 W% w; p1 X dp2.rgdispidNamedArgs = NULL;8 L( p2 t/ h# ?5 r4 j. E9 ~5 `
dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY;
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// Call IDispatch::Invoke()
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, c0 O/ |: P$ I2 M hr = m_pDisp->Invoke(
- e( \8 y! U$ h1 e+ A& M requestID,7 h% Q4 U, I! m; q. |. ~5 J
IID_NULL,9 T/ X- @; @# N! ^! p) G, E
LOCALE_SYSTEM_DEFAULT,
0 E. d' z1 ?% {+ a4 C: r+ t0 m: s DISPATCH_METHOD,' Z- [0 L) c) G4 e
&dp2,
" ~7 P% Z9 ]) ^7 k% q) N. p6 f9 C &var," L: B" W8 {8 ?, A! F; \
&ei,3 F- n# z/ P: k2 S* Q3 C9 `
&uiErr);
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+ ^5 l" |! K* @ SysFreeString(topicStr);+ T! u @) W. L1 M' M
SysFreeString(itemStr);& Y9 Y0 N* C9 Q X9 m5 l. N7 X
请问该程序是获得extend里面的哪个值?& C' h5 g2 `: w. H0 `0 [4 ?( ~
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????
我来回答