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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:
1 h9 S% X6 R& H/ bName = (WCHAR *) L"Poke";7 }% q# a; _+ t5 M
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hr = m_pDisp->GetIDsOfNames (
! p8 b6 `1 w, m+ E% B4 x" a# x IID_NULL, // reserved8 @3 `! L% C" D- z x4 x' w7 c
&Name, // Array of names to get IDs for L& [) f/ _7 }: N& r* T
1, // # of names in the array# {4 M+ l4 l5 Q5 ^% X( A
LOCALE_SYSTEM_DEFAULT, // System locale- q+ x4 k9 T8 m
&pokeID); // Array of IDs to fill on output
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* H& D+ N! ^# Q9 S, P! v if (hr)
" w! P) G+ r+ ]4 o! i {
) ~! G& j' i/ s" r MessageBox ("Get Poke Unsuccessful");
' a8 R5 d# m0 c) l return;7 t1 ]$ J3 L* N
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/**************************传递数据给extend**************************************/
2 E5 u2 D- ]# d, H0 c pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);+ `9 s9 R- ?1 c4 Z" K. \7 g
8 G2 V% G j3 T" W+ F, | c valueStr = SysAllocString((WCHAR *) L"1232");0 v, i& f# C$ q
VariantInit(&pokeVariant[0]); 9 ?/ Z* G! L' `3 i+ Q% r
pokeVariant[0].vt = VT_BSTR;
8 c R9 T5 U+ _: [- w. N, T pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");6 m! Q, g# Z; r2 @; R
VariantInit(&pokeVariant[1]);
. u6 \$ }1 x- V) c& o pokeVariant[1].vt = VT_BSTR;
& e( M2 \0 k. Z/ G4 U! w/ c' g pokeVariant[1].bstrVal = itemStr;
2 F# B' z( o4 y. i" u
% n( h3 c: U5 W* t9 b. a topicStr = SysAllocString((WCHAR *) L"system");
& `" h1 V/ E( E VariantInit(&pokeVariant[2]); . ?; k' \4 [, o1 h
pokeVariant[2].vt = VT_BSTR;
+ }' v4 N7 x2 D3 C: r pokeVariant[2].bstrVal = topicStr;
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! J. `( D% j% e" h5 ~// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;- B3 l) c8 O$ j a% b3 O. i
dp.cArgs = 3;
8 R# Z$ {- Q* c" @) V dp.rgdispidNamedArgs = NULL;
/ N6 B [+ q' T- X# A9 @* T8 ^+ C$ \ dp.cNamedArgs = 0;6 S& B& m& \! B5 i
, S+ R" M" H; X1 `6 }" }// Call IDispatch::Invoke()5 j; T: o9 D1 P3 _6 L1 ?
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hr = m_pDisp->Invoke(
) p3 I/ E- x5 Y. d% }3 O6 w0 U- i" c pokeID,' p& G/ `7 I. y8 I9 j0 q
IID_NULL,. W/ q4 o, j$ X$ _) V: u% t% M
LOCALE_SYSTEM_DEFAULT,
5 a1 N1 \1 F& j1 U& B DISPATCH_METHOD,4 l, h! T. |- @7 G
&dp,
7 |9 I; t8 h( V; ]4 d5 B9 r* {( u NULL,) Q* {, p! V, J0 x. y
&ei,$ ]% m0 L6 r8 I& E
&uiErr);
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SysFreeString(topicStr);
8 d5 f; f n( `3 C0 y2 t SysFreeString(itemStr);
9 D* ]/ J( l! s: d' r" H2 E0 X/ U SysFreeString(valueStr);
: \9 N* D6 @1 m6 Y! C9 A9 s+ Y
+ I+ D2 {7 A; T! L+ r7 l7 e+ h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???' @0 B/ ~! j2 ^" ?9 D! K; N
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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0 T8 p4 o! h& L+ ] m4 C' }2.这是request的程序9 G4 i" R) F/ l5 a, F s: Q- F& Z
// Request a value from Extend
! q# o* R" I- S4 u |6 G//. T! q) _, Z3 k* G! Z1 Z- B
// Initialize the variant that will hold the BSTR. Set the variant's
( I' B) s0 L/ S* k3 o( W// type flag to indicate the fact that this variant holds a BSTR. Place the, _" B+ r( J( U2 ]. {/ @. H
// BSTR into the variant structure.7 N& ?+ z. L# V% [, ?$ g$ b8 x
) v& z: g' @, R+ c1 [- V requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
9 f: R! A' O: |2 n( n% { u VariantInit(&requestVariant[0]);
4 C6 k% I# `! V. [) \) C1 g0 ]# e requestVariant[0].vt = VT_BSTR;1 A; p4 y* K0 E. m
requestVariant[0].bstrVal = itemStr;: d, V* j2 n- ^3 |. Z
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topicStr = SysAllocString((WCHAR *) L"system");6 K' U0 T! L9 A% }& b" s; x
VariantInit(&requestVariant[1]); 1 H- p3 { \2 Z$ X: Y
requestVariant[1].vt = VT_BSTR;# |" H8 {5 A" ~0 U8 d
requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
g& n( e; ]; f" }
3 ^5 E5 ] v( c# e dp2.rgvarg = requestVariant;
0 s' f* T8 t0 V( T dp2.cArgs = 2;& j: w" L l' A
dp2.rgdispidNamedArgs = NULL;' P' R4 R. e% p* h# }$ |7 ]% A
dp2.cNamedArgs = 0;
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) ~1 Q3 _4 I! T) F5 r var.vt = VT_EMPTY;
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' k( t, P+ l6 c0 z2 \6 j// Call IDispatch::Invoke()
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, N: ^" ?0 ?1 o' w w( @5 p5 F hr = m_pDisp->Invoke( m% r8 c" S& ~, V4 n6 p
requestID,
- |' m/ w& q/ g, W) g6 | IID_NULL,
# p' [' I! S% C LOCALE_SYSTEM_DEFAULT,6 V; q* L B. _$ ?& Y
DISPATCH_METHOD,
- C, u: x, i! U# y5 t u &dp2,+ [ w* d# _1 q2 `. P
&var,' J" }2 _7 ~! u4 f+ D
&ei,0 n+ _ o4 g8 e3 i) ]
&uiErr);$ I( i0 \2 g/ a1 x* S
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SysFreeString(topicStr);# i/ _0 l- {7 [; g+ c
SysFreeString(itemStr);7 p$ e$ h: q1 g2 P4 m2 ?
请问该程序是获得extend里面的哪个值?2 [6 d2 F% H( f5 I7 Z$ Q2 K
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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