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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:
/ b1 K( k% q3 ^3 qName = (WCHAR *) L"Poke";% l. f1 _; j1 y2 q% d, [
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hr = m_pDisp->GetIDsOfNames (, w" J" v% c: B# i: X6 _: v& y# e6 U
IID_NULL, // reserved: l4 T. B/ r7 K- A3 _
&Name, // Array of names to get IDs for# N' E5 P( |2 s& M) j; a
1, // # of names in the array, Z$ Y: A/ I8 j! h1 {* x& X6 z) n7 @
LOCALE_SYSTEM_DEFAULT, // System locale/ x3 ?' x$ a/ B$ n; n( K
&pokeID); // Array of IDs to fill on output# g. q( K& d( U0 M6 k: A- y
7 [- {! K& _! Q! Q' |
if (hr)% P7 Q+ B: x" l8 |
{
; a k: c) I6 }3 O+ r2 L$ S MessageBox ("Get Poke Unsuccessful");# ? [/ c! u, }5 C! S0 z( Q' [
return;
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/**************************传递数据给extend**************************************/) S$ i+ r2 }% _* G2 M2 w
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);8 y1 L4 i+ R( c E
2 n& \& y5 f. U* C/ d valueStr = SysAllocString((WCHAR *) L"1232");+ H8 W6 C( ^6 w7 n. z9 k, T
VariantInit(&pokeVariant[0]); + d8 u- f( ?* I
pokeVariant[0].vt = VT_BSTR;
7 K% l+ N4 |( z pokeVariant[0].bstrVal = valueStr;2 O' s; w& k) i$ f
! r3 K- w/ Y+ Y& d/ y$ q# X
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 I+ {1 R+ T& R! x. \
VariantInit(&pokeVariant[1]); % `) \ [) E5 w( @
pokeVariant[1].vt = VT_BSTR;- _4 I7 f2 B* a1 z: P& o% A8 p
pokeVariant[1].bstrVal = itemStr;7 i6 b" _7 r5 j) q/ I
+ p0 K5 x3 H' c7 G+ J6 Z `" K+ M! m
topicStr = SysAllocString((WCHAR *) L"system");
6 s) P' ~9 S( \; \; ?0 b5 i VariantInit(&pokeVariant[2]); ' I$ Q2 A. l9 t9 h
pokeVariant[2].vt = VT_BSTR;! d( x n7 W+ L! J- x0 D% M
pokeVariant[2].bstrVal = topicStr;8 P3 }- _+ e, Y- ` S* Q
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// Set the DISPPARAMS structure that holds the variant.
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" V, G: g1 X! Q; h/ n dp.rgvarg = pokeVariant;
8 S/ R$ j" F& b. R y2 t dp.cArgs = 3;
0 f- f4 R3 K. { l- F2 ~# V- d5 } dp.rgdispidNamedArgs = NULL;
- A4 Z8 J5 q! y+ X G2 n dp.cNamedArgs = 0;
: F8 v$ \! Y6 q+ d H
& g1 ]0 n5 ^1 |4 L: J// Call IDispatch::Invoke()' i( y/ T5 C% m* _+ Q% f4 M1 o5 g
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hr = m_pDisp->Invoke(
) @- s1 Y* m3 @+ T$ ?5 B" B; u4 X pokeID,
- J3 J; V. [2 x: A- M' V" X" g' O IID_NULL,
* a: @7 Z' N, ? Z! i$ \3 e/ M LOCALE_SYSTEM_DEFAULT,6 t9 g$ D: c' o$ h" |
DISPATCH_METHOD,& G+ `- ]9 u0 c
&dp,+ I- x5 V% u$ w
NULL,
4 l$ a# W9 T. d4 ] f &ei,
& n* m7 l& I( Q- F8 B &uiErr);% D5 H" v& [; ?4 a' y1 c7 m: Z$ j
# P. a; C9 m: y- X
SysFreeString(topicStr);, Z$ o. C4 s5 }3 }8 X
SysFreeString(itemStr);$ _- O. s7 o$ e% f) q6 Z2 j8 j0 y8 y
SysFreeString(valueStr);$ i* s) S$ i+ Q) R, ]. r* T+ G
( s& l0 {' N" ?5 ]* q6 ?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 k# D% I7 D' ~
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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( d* I4 J* y0 i+ _7 [& Y2.这是request的程序
. @# N' e& Z7 M2 p P8 K# _// Request a value from Extend
/ Q0 ~( ~5 ]. O4 w6 U I6 k//
+ W8 T2 o& P( e5 p# B// Initialize the variant that will hold the BSTR. Set the variant's9 w; x) ^- O) K4 I4 v
// type flag to indicate the fact that this variant holds a BSTR. Place the/ J2 ]. [3 G0 U8 @
// BSTR into the variant structure.
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9 C" [3 Q* X# M# g: n; w requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);2 L: @- K7 x* v5 A$ W% D
" \* u& n- U5 V7 n
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% i& ?. Z$ Z* C' }/ p
VariantInit(&requestVariant[0]);
# g7 ?2 _) |8 k requestVariant[0].vt = VT_BSTR;
) q* G* W, i) E# k; c requestVariant[0].bstrVal = itemStr;- v2 g' I5 }. R/ S6 Q7 A
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topicStr = SysAllocString((WCHAR *) L"system");
4 j9 j( G7 R! x( A# r9 d VariantInit(&requestVariant[1]);
9 n5 b! e- ^* f1 N0 |' E; y requestVariant[1].vt = VT_BSTR;5 e* z) G' t. V* [ m9 Q
requestVariant[1].bstrVal = topicStr;( t, i. X: K: w6 W: x
) R" j7 A2 L- M2 X% G// Set the DISPPARAMS structure that holds the variant.) W. }2 j. X: `) u6 y
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dp2.rgvarg = requestVariant;
. p9 B5 g, ~# K/ s$ W, U dp2.cArgs = 2;9 ~/ |& p$ j, j ?# W
dp2.rgdispidNamedArgs = NULL;- ^ b) L: t+ V3 }( y1 N
dp2.cNamedArgs = 0;
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1 W! s8 c) ]# \3 B* ^; ~* y var.vt = VT_EMPTY;
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: t% Y* G" q" u, Q# ] L) V// Call IDispatch::Invoke()! y! j5 m- R& N( x( }4 |
v* W4 f$ `: @8 K: J" |& `# x hr = m_pDisp->Invoke(* { D0 z9 T. W4 P. m5 H }' ^5 `
requestID,
* z% G( b; H. e) P2 ]+ d' P IID_NULL,4 x9 |& H J' k) `+ h9 t
LOCALE_SYSTEM_DEFAULT,- C/ v: S: J. q( d9 V
DISPATCH_METHOD,3 |5 J* @) b7 s- }
&dp2,& @7 ?/ @ ^& k$ G S( {
&var,
! Z# g i0 Z9 n0 Z &ei,3 u/ d6 v6 m9 | }1 h q- s
&uiErr); g ]# s# v" |. m4 z9 d' v
, x# P9 Q5 p9 h3 v( x- o SysFreeString(topicStr);
& P: l% ]& }0 q2 y$ P: s5 }' I SysFreeString(itemStr);- c% V# _) M# m- `3 [0 M! S8 H
请问该程序是获得extend里面的哪个值? i4 C- n. G8 Y( h4 U7 @
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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