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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:
$ a1 Z. d6 i2 s. x4 H9 U: h' KName = (WCHAR *) L"Poke";8 D& P! \) q7 d. d+ {9 e6 e
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hr = m_pDisp->GetIDsOfNames (% }4 C) S! d( @
IID_NULL, // reserved8 {" @7 P5 N; [
&Name, // Array of names to get IDs for, r5 s+ A3 c% ?+ |
1, // # of names in the array! z: z3 v4 J* L1 X7 z
LOCALE_SYSTEM_DEFAULT, // System locale
l, F0 C- Z7 Q6 x; j, W &pokeID); // Array of IDs to fill on output
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if (hr)
/ g1 \3 k# ~8 o& P {
. E% V/ v2 ? ~9 p MessageBox ("Get Poke Unsuccessful");: D' N" f3 w) ?& G
return;
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/**************************传递数据给extend**************************************/; x; { {, k2 S% k: A6 ]9 w. x
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);0 S/ _+ c5 O$ F; {
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valueStr = SysAllocString((WCHAR *) L"1232");
; n5 Z9 g! C) U1 Z# P VariantInit(&pokeVariant[0]); 4 ]+ D" t% {+ ~# Q; s7 @
pokeVariant[0].vt = VT_BSTR;
& P* H* q5 N- s3 o T7 [ pokeVariant[0].bstrVal = valueStr;
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3 E& ?) h$ L; |; n itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");6 A% U$ w# |0 L7 z) {9 T- h
VariantInit(&pokeVariant[1]); 6 W! P% k, k1 r2 H1 D
pokeVariant[1].vt = VT_BSTR;
0 N! C1 h3 G: w7 u/ B$ Q8 g- @) H6 P- i pokeVariant[1].bstrVal = itemStr;/ A4 b y# x! X
1 l! |2 }% } |% y topicStr = SysAllocString((WCHAR *) L"system");8 M& k; a4 P& |9 T
VariantInit(&pokeVariant[2]); 3 ^& }4 e8 [* I/ G+ Y* k9 T7 h
pokeVariant[2].vt = VT_BSTR;: p0 t+ W/ [$ l8 j; Y( U
pokeVariant[2].bstrVal = topicStr;. v3 `4 ?1 `5 B; \% O
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// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;
0 p& Y2 C0 j ^" X$ v- }2 B dp.cArgs = 3;0 O" h, R; Q( x5 l' g
dp.rgdispidNamedArgs = NULL;
3 k# O+ ^! B6 J4 L dp.cNamedArgs = 0;
: o$ ~ [4 k9 U9 k, D7 M7 i/ A# ^
) s- M; [2 }* u// Call IDispatch::Invoke()
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; ?) H4 _2 {! l6 B hr = m_pDisp->Invoke(
: t- J- x7 C1 C+ J pokeID,
1 }% h$ h) }3 ~( ]5 r IID_NULL,1 k# O8 p$ q4 V( }) y, `
LOCALE_SYSTEM_DEFAULT,
/ F7 E% x, C) G) }2 k* Y+ A' O DISPATCH_METHOD,
+ V7 q( D* O# n2 K0 `) x &dp," [) ]4 M4 h$ U8 }
NULL,* g, E% [. X G, a8 r: f
&ei,* W" n) R k% x9 Q8 b! b- j7 y
&uiErr);
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SysFreeString(topicStr);
$ \2 r' B4 \; B- c SysFreeString(itemStr);
3 D# k2 C+ J. A# [0 J SysFreeString(valueStr);$ u7 }( M( _$ {( J! w3 d) n
) V, T( r& m( q5 J2 t$ c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???5 N( ?: q/ Z$ R" N; j7 `3 ]
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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( \* {# {( c* T: ~% Y2.这是request的程序
5 u5 j9 R6 T/ b3 R# B$ N// Request a value from Extend
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// Initialize the variant that will hold the BSTR. Set the variant's
- F" ^8 |$ y+ ]- m" B2 \// type flag to indicate the fact that this variant holds a BSTR. Place the! s! s! l* E) s2 [% ?( L* d
// BSTR into the variant structure.: ]9 X9 ~# j; G& y5 V
; D. _! C1 I# r$ S! W5 U6 l: _0 Z* z( I& l requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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|4 G2 s. h9 o' T& C itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
1 |/ W$ A% y5 R1 S3 i VariantInit(&requestVariant[0]); # d, @' |, [7 x& Z
requestVariant[0].vt = VT_BSTR;
3 H. D8 W( [4 y; b requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
4 \9 ]- ` q* F% D- l) ^ VariantInit(&requestVariant[1]); : G5 x+ q2 j$ O
requestVariant[1].vt = VT_BSTR;5 h7 d0 u3 ~" x8 M" |
requestVariant[1].bstrVal = topicStr;) d, D: l+ Y) c
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// Set the DISPPARAMS structure that holds the variant.* K$ b% H9 ~+ P" g! _
% A R* }9 h/ {' S$ T s dp2.rgvarg = requestVariant;
( b" \ Q! n) _ dp2.cArgs = 2;
0 A# D1 a1 U8 u, p* r! v( } dp2.rgdispidNamedArgs = NULL;
* b2 C& J2 V" W$ f' s( e dp2.cNamedArgs = 0;
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9 Q( [0 e5 _% m7 c& U var.vt = VT_EMPTY;( A3 F6 S& U* P( ?& R% A9 B
) j. p/ ~ f. M" s0 B; R: M! ^3 L// Call IDispatch::Invoke()
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% \. C; i9 T% \/ R hr = m_pDisp->Invoke(& V, A% d8 b, w2 A
requestID,6 L3 g3 l$ v- t# t* s+ L7 J
IID_NULL,+ k [6 y5 q9 ~, p: T: F% f
LOCALE_SYSTEM_DEFAULT,
. U9 e, Z5 k. T* l! X, w1 | DISPATCH_METHOD,
6 G( p+ @ V1 a6 Z M$ I &dp2,
9 Y3 C' M4 U8 d5 h' {0 S &var,
0 a% ]* |" P Y8 j& p7 Z &ei,8 K! e# Y" L, d( m% f* q
&uiErr);
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: }* Z, \3 j2 e' E/ i3 N1 N* g" Y n SysFreeString(topicStr);
6 \* F; ~0 n1 V7 C* g SysFreeString(itemStr);. D! Q8 m2 S5 s5 Q) l$ {
请问该程序是获得extend里面的哪个值?
3 C @& Z3 V. b- 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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