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: 3 W4 [3 G W2 t5 i: Z/ {4 u- \( LName = (WCHAR *) L"Poke"; $ ~9 [4 ~, C. g. z d* } ; r* T( n' f( q) I$ F/ i" \ hr = m_pDisp->GetIDsOfNames ( " x4 C9 i p; Y8 T3 Y' T* t IID_NULL, // reserved5 {( u& p v- F0 h9 g8 ~4 [- p
&Name, // Array of names to get IDs for Q$ b3 Q0 w1 p/ v
1, // # of names in the array 0 a3 x" d1 w" d C7 x* I LOCALE_SYSTEM_DEFAULT, // System locale7 c& v2 D0 J, O: A6 z
&pokeID); // Array of IDs to fill on output5 W( h# n+ l; {6 }7 y& f
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if (hr) " c4 P6 y# Z* L* k" J' x2 Q) r. Q, J {* }: R8 P! x1 J/ i0 J" F* T+ z
MessageBox ("Get Poke Unsuccessful");& i& Q! F6 M3 T" J( }
return; ' t/ ]# `& O4 R; T }; B$ n. F$ W, m7 ^( v, E
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/**************************传递数据给extend**************************************/" c7 w h! U& U
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);7 F x- ^$ ]8 ?! a( J5 H
# F4 C! |. J; M! x, R$ N2 t valueStr = SysAllocString((WCHAR *) L"1232");! ^ a4 z# f: y0 Y. W" k# l
VariantInit(&pokeVariant[0]); - m/ q% }, V2 v# o# w pokeVariant[0].vt = VT_BSTR;3 u5 R- F; `& n) F3 G/ @
pokeVariant[0].bstrVal = valueStr; ( [7 I- S( ], J, d$ U: _: {6 e( i4 R: I0 ]) a3 D e7 I
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ G4 ^" e& ~5 |
VariantInit(&pokeVariant[1]); + i) h% O: [! v3 n$ ` pokeVariant[1].vt = VT_BSTR; # N# u' ]$ J/ i0 Y' l) t pokeVariant[1].bstrVal = itemStr;# k& N1 L! u7 M$ F" P. G5 Y4 P5 C0 B
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topicStr = SysAllocString((WCHAR *) L"system"); 4 C5 N: Z6 P$ H* }- }' ~: A8 Y VariantInit(&pokeVariant[2]); " O' z$ a# Q+ [' s. Y5 e pokeVariant[2].vt = VT_BSTR; 5 Q' |& ?/ I b pokeVariant[2].bstrVal = topicStr; # F- ^1 G1 W [* h( |# w- j) w; {0 S8 \0 n( F
// Set the DISPPARAMS structure that holds the variant.+ T1 c* o$ W. {% T2 W. y
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dp.rgvarg = pokeVariant; ; J- Z$ M5 i8 G( F D6 Q dp.cArgs = 3;5 P# s4 S1 @& y. L; n
dp.rgdispidNamedArgs = NULL; 0 L5 O a# c( E3 w: W* W7 C dp.cNamedArgs = 0;$ x: |% A& _) M/ N
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// Call IDispatch::Invoke() + a' U6 c- _" T. ` 9 g3 [: I+ W; n8 V, d) Y hr = m_pDisp->Invoke(! D7 E" ?1 X4 q) d; I) C$ k
pokeID,( r" z6 f3 V9 X7 Z' |3 V9 j0 ?
IID_NULL,- q- a6 y: O" f2 q) ?& @% l/ q
LOCALE_SYSTEM_DEFAULT,$ x* R; k! L# s
DISPATCH_METHOD,% B0 w% r& A; [
&dp,( }; Q* w" l" {/ o
NULL,+ s: y5 ]# Z% }- N( }# z2 D3 C
&ei, 0 m( l; h8 c/ i& i! g &uiErr); & @- A5 Z4 d1 S7 x3 q3 `$ u' G8 B- H9 k
SysFreeString(topicStr);9 }' Y) `! R% v. u; h+ a- X
SysFreeString(itemStr);0 x5 c7 K0 a" J" V3 G: U2 |
SysFreeString(valueStr);# D* r9 z X/ ]; p2 E: F
8 Z z' K/ v% a( O! T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???3 H! v& i- j2 X8 m( F
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????3 s- p$ q! O! m# x, R
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2 J/ |5 U. R3 I2.这是request的程序& u' s" y4 L: A- Z, e, S+ k+ E" w
// Request a value from Extend+ e# E2 H, U- P: X) x! H! q
// % u. b% v) Q/ m: M7 E$ f// Initialize the variant that will hold the BSTR. Set the variant's+ h: L' O! x Q/ ^. O) F
// type flag to indicate the fact that this variant holds a BSTR. Place the, @5 F ?& i9 |& ]
// BSTR into the variant structure. 5 s2 @% D& b8 x5 S8 [" q& n 3 K6 w# v& e! [$ c$ v6 |! g( H" C" \ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);3 H7 r: l1 b$ G8 @$ Q% H3 J7 {! o
( ?. ?2 ^) I( z) t" K itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); * m8 l+ n9 q3 Z8 n5 | VariantInit(&requestVariant[0]); ) ]2 w, Y( M9 [8 T$ s& S# O requestVariant[0].vt = VT_BSTR;- l( P7 V) j. X+ P3 M5 |4 x; H" s
requestVariant[0].bstrVal = itemStr;) {& w3 _) @% i' `3 P Z
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topicStr = SysAllocString((WCHAR *) L"system"); # Q! t) s5 @5 Z9 |7 O& ~ VariantInit(&requestVariant[1]); 7 o, c" l" C5 u5 ~. \# ^* U
requestVariant[1].vt = VT_BSTR;( ~. K9 V$ k& G3 E& u6 {9 P J! O! k
requestVariant[1].bstrVal = topicStr; : u! V& b3 F/ ? 1 E ]7 H6 b$ b// Set the DISPPARAMS structure that holds the variant.# W6 {' }( q0 N# }1 S' G
% z4 I$ h5 @0 `6 w! _7 p dp2.rgvarg = requestVariant; , d! s6 h: |. l4 h dp2.cArgs = 2;- G7 A0 M' c" L; ?5 p& A. u
dp2.rgdispidNamedArgs = NULL; ) `5 p( n+ ]0 _/ J. _ dp2.cNamedArgs = 0; . P6 d! t1 X1 X" X 1 [ P+ g; R( b, \ var.vt = VT_EMPTY;- _0 R. ]! \8 W: V6 O
* t. h* I! z* B6 H// Call IDispatch::Invoke() ) y6 P" k+ `/ y; D. |' ^ 9 @2 a) @6 M2 S9 n% h$ o- c8 q- { hr = m_pDisp->Invoke(9 x! U# r7 t* k1 y5 x
requestID, $ T3 z3 g1 T6 [/ V IID_NULL,1 ~$ K5 g. @5 @6 f
LOCALE_SYSTEM_DEFAULT, 2 x* _0 l$ ~! k+ q& \+ b6 |: d DISPATCH_METHOD, , ~4 f, L9 z- w2 F# q2 F &dp2, W" Y8 Q( L; w1 O, z! K c# ~
&var, ; j' n4 e2 ?! m5 k8 j Q' ^* \ &ei, 9 h3 |+ W0 `- k$ o6 u: x$ d &uiErr); 0 A5 W4 S6 c" z! @! h. ]) u0 }) }) P( h2 L5 O8 B! h# t
SysFreeString(topicStr); 6 X9 ?9 u5 g& e; [, G SysFreeString(itemStr); & a7 v5 O* c( q( K: g. d+ F3 ^( l请问该程序是获得extend里面的哪个值?; { d( f' {! P; I4 l8 @# a
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????