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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:8 G. P) _* ^ Z
Name = (WCHAR *) L"Poke";
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# i5 C5 M7 K$ D hr = m_pDisp->GetIDsOfNames (
# f% ?4 c* @. f* H, Y IID_NULL, // reserved
" ?! J6 O: J& M2 }0 O &Name, // Array of names to get IDs for/ b8 u" F2 k5 v! ^. p* v/ q( k
1, // # of names in the array5 x1 R+ ~% G }3 h1 l* Y
LOCALE_SYSTEM_DEFAULT, // System locale6 H, A& C1 B5 ^% w
&pokeID); // Array of IDs to fill on output
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if (hr)
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* q2 V* }9 q" O8 @ MessageBox ("Get Poke Unsuccessful");# i2 @* s0 w! x# I4 \4 P2 \
return;6 ]& ]3 f0 E1 g7 B* L
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0 k" E6 w+ m# ^6 O. A% J0 p0 x/**************************传递数据给extend**************************************/1 G/ g6 F) i O6 {8 x/ d1 I
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);# d0 |3 k1 l, n. h' f6 _- A) B
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valueStr = SysAllocString((WCHAR *) L"1232");
9 b1 V) `0 c. M+ l( E VariantInit(&pokeVariant[0]);
+ \3 ?; I+ N& {- S y4 X$ v pokeVariant[0].vt = VT_BSTR;: L: K! q% X# g; l1 P' Y3 s
pokeVariant[0].bstrVal = valueStr;
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9 _2 w) z$ B( r: ]7 z x# y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
+ d* G5 v+ F' R2 h VariantInit(&pokeVariant[1]);
! n7 q# p T1 m. h. P pokeVariant[1].vt = VT_BSTR;
7 T+ y& \! b) z } pokeVariant[1].bstrVal = itemStr;8 o7 W0 u" R3 B4 ?( b
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topicStr = SysAllocString((WCHAR *) L"system");: R! {4 [* V; Q0 Y+ ~, T' Y
VariantInit(&pokeVariant[2]); ( V( i3 ~2 M: P+ v% D* [
pokeVariant[2].vt = VT_BSTR;) }% P# ]6 e9 O: v# X$ [7 Q5 Q: G: @ n
pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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7 H; e+ k; U8 b# _3 r% T dp.rgvarg = pokeVariant;; X' y, g" A+ K) P; V2 _; X/ C, p+ L$ J
dp.cArgs = 3;9 }! A% F& L; c9 M
dp.rgdispidNamedArgs = NULL;
+ |9 R2 Y' S8 ]. D4 M dp.cNamedArgs = 0;* r$ F: h6 I, ]6 ?/ |3 F
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(- c5 o" w1 ?) N& k6 x
pokeID,
4 i! b) ~# Q1 o) A* d6 ^ IID_NULL,& U; W. F) x1 w% P. A# x8 E) q
LOCALE_SYSTEM_DEFAULT,
# ]! r) t+ c: T% E+ m DISPATCH_METHOD,
+ |4 `8 ]3 g' y. \2 U2 k6 w &dp,4 A/ B9 P% }- n0 J2 b( z8 l/ G2 Y
NULL,
H& Q" K) G. q &ei,
7 O4 F6 ~6 o0 t' b2 t. C, C &uiErr);
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# j$ j; h$ ?, V SysFreeString(topicStr);
" |5 X! B7 |; Y# ~- r# D) b SysFreeString(itemStr);+ Z4 e! m0 Q! F/ A7 j1 r- P
SysFreeString(valueStr);8 L2 T$ j7 {* m5 Q
3 K( `. U" ]8 j, n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???7 q, y% |6 v/ t, z- A5 g
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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3 R. r \8 R3 c7 k2 o/ M# g2.这是request的程序
1 V4 U. V7 @! y/ d* V7 J// Request a value from Extend
$ l# a; d! H+ P8 M( G//
8 U# w. V+ Y. s; U! y// Initialize the variant that will hold the BSTR. Set the variant's
% n3 N! a: {+ Q7 g# G2 e* \1 z// type flag to indicate the fact that this variant holds a BSTR. Place the
' n8 |* C; U3 x" P5 i// BSTR into the variant structure.( U* ~7 J1 V/ R& Z
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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& j& j2 ^& k+ E3 A itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
% ?; q7 j) M# f$ l- j3 y/ C1 n$ g$ p VariantInit(&requestVariant[0]);
! z; o2 d! }$ [, u requestVariant[0].vt = VT_BSTR;! `7 G3 X) X% [* d
requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");& \' ?% n' ]2 U. A" Q( y& [4 c% D( i9 M
VariantInit(&requestVariant[1]); $ f8 W( K$ K9 t3 E: Y
requestVariant[1].vt = VT_BSTR;
9 |9 M; _0 B: x requestVariant[1].bstrVal = topicStr;
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! [' a+ S7 {! L* ~7 z// Set the DISPPARAMS structure that holds the variant.
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2 S. W) ~; m# x dp2.rgvarg = requestVariant;& Z1 H1 A9 i* z3 D
dp2.cArgs = 2;( [: s% F5 c- Q( R. m9 O9 S
dp2.rgdispidNamedArgs = NULL;
X8 V6 N2 K: O/ _9 x dp2.cNamedArgs = 0;
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; A3 X4 O& }9 I var.vt = VT_EMPTY;
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" X( U6 x" @2 q% n) `3 m// Call IDispatch::Invoke(): V1 E! h# l) Q
. K7 C4 }3 `( d# ^7 j! i( K% O3 N! M hr = m_pDisp->Invoke(# R3 C. m% M6 n7 z4 M9 F, ]
requestID,5 u: \0 B, P+ t, R# k
IID_NULL,
$ ^* q) o' }) V8 I( k5 e" ] LOCALE_SYSTEM_DEFAULT,
+ \2 Y# X) ?8 \ DISPATCH_METHOD,
5 E$ a- ]( O" z1 j# ~ &dp2,
' P' }9 N" e( T. o# Y &var,
# U# X+ ^& g5 {( y &ei," o _ ~1 B2 |+ X
&uiErr);, g) G/ ~% i% w7 d$ ~
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SysFreeString(topicStr);
: F6 r) h4 X8 @7 W3 a SysFreeString(itemStr);' i! w f7 X4 d4 X) ~( V
请问该程序是获得extend里面的哪个值?) w' q3 k5 w! [9 ~# [% o2 A/ B
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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