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: b7 [6 G' y7 m9 {6 [" F( kName = (WCHAR *) L"Poke";( T; U8 E1 r& _- j. I, V9 I! z5 g, }9 D
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hr = m_pDisp->GetIDsOfNames ( - l1 A8 h& ^' R IID_NULL, // reserved( l+ I' L ?9 p7 y. w$ M
&Name, // Array of names to get IDs for/ Q# y1 ?: e4 I$ G& P) }, X2 F2 O' j
1, // # of names in the array / O* H5 h7 Q2 v1 M LOCALE_SYSTEM_DEFAULT, // System locale # _# G- [$ h9 I% `3 T$ X' c: A &pokeID); // Array of IDs to fill on output7 Z# T# Q% J2 Q4 y8 M1 ]+ w
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if (hr) 4 N4 q. S R9 w* ]& t {& @2 ~! P T6 e. Z7 Z6 i
MessageBox ("Get Poke Unsuccessful");! t. Y1 o3 v7 r, P4 E3 }0 q
return; ) a+ X4 I* x$ y' p( G }# y$ D5 z% Q: q3 r. w) d
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/**************************传递数据给extend**************************************/ 6 X1 U: N* F& C$ I% S3 R$ ^/ C pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); # G K) Z& {! u8 g . P" o( |) n& ]8 c K t" X! f" ~% V- Z valueStr = SysAllocString((WCHAR *) L"1232"); - o% I1 [, c" D: S: s VariantInit(&pokeVariant[0]); / o- y c/ C$ N0 l1 K
pokeVariant[0].vt = VT_BSTR; 4 ]8 |/ R% i) J( B' o" R pokeVariant[0].bstrVal = valueStr;8 S- Y& s ~$ N% ^! {% x1 d- A
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' W5 H7 S& b0 ^6 O* L8 `% R VariantInit(&pokeVariant[1]); 5 m. R7 e0 c$ b9 z
pokeVariant[1].vt = VT_BSTR; * {: E3 p# _. u0 D' `1 v pokeVariant[1].bstrVal = itemStr; " u3 `- L7 k% j $ [9 W6 Y7 G2 |' q- n5 F& D topicStr = SysAllocString((WCHAR *) L"system");: O) l3 T) p9 o% Y
VariantInit(&pokeVariant[2]); ?! X2 [, G& U2 B& [" f4 Z8 s
pokeVariant[2].vt = VT_BSTR;$ H6 U1 x F8 k# k& G
pokeVariant[2].bstrVal = topicStr; * U5 b/ T2 n0 f/ U# O+ D5 g* G : q: }- t) f( y5 Q2 b% r// Set the DISPPARAMS structure that holds the variant. + q' h0 r8 L0 s+ @6 R6 r4 b * H+ `" n- n% U: F8 {# s" P dp.rgvarg = pokeVariant; 8 A# Q1 P6 l0 z/ a dp.cArgs = 3;8 P; t% R% z9 Q: S
dp.rgdispidNamedArgs = NULL; , u! R q3 g8 h' F. I dp.cNamedArgs = 0;: ?/ b, k8 A$ R$ Q- q: I
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// Call IDispatch::Invoke()4 f3 e. a/ @% G; t4 z
' ?7 E1 u) Y$ c8 V7 R: I! @ hr = m_pDisp->Invoke( $ o2 F7 ? y5 d3 M2 [ pokeID,9 B) |( G% A( I
IID_NULL, 1 g1 E) ?8 j. o6 Z$ i {( R LOCALE_SYSTEM_DEFAULT,. w& H! d- w+ @# ~+ B
DISPATCH_METHOD,4 v' ~7 D) D' _8 E8 b1 r
&dp, 7 z* [3 j, p3 m% S0 i NULL, - @* w+ y% N1 A3 {4 M. _+ }% u- F &ei,- s3 R; @8 ?! O7 m9 s% C
&uiErr);& y& d7 e* k* ]# _6 j8 x
`* {9 w3 c' }, \1 o) j SysFreeString(topicStr);) U6 C0 B: q+ v+ R
SysFreeString(itemStr); 9 F( q0 d2 u7 G4 P SysFreeString(valueStr); 6 e7 U- ]5 z9 W' E, T8 r 6 H5 M+ d- A- b! z! v/ Q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???" k( X: C3 }) ]' n) @3 N* U
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???? 1 t% ^% d' n7 w/ h; w9 X. a) y5 E, N s$ a
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2.这是request的程序# @+ a; X% t8 e2 f; F) }
// Request a value from Extend . ^6 ]& T" i; A* i// 9 a* s' b$ t* _6 ]// Initialize the variant that will hold the BSTR. Set the variant's ( o5 u# s4 A: [: a3 J4 t5 p9 f// type flag to indicate the fact that this variant holds a BSTR. Place the8 u+ A* _6 O- N# f- z
// BSTR into the variant structure.1 W& n1 o7 c. a* s7 P6 n- D
* F+ A4 n1 l9 N/ F5 O requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);, K' Z/ {: j& f- j7 D4 ^1 S
$ k1 o& k$ B, m" m' J: ? itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , s% B% m2 |) z6 A' t/ O VariantInit(&requestVariant[0]); ! M& Z5 |! p# U J; [4 E# M
requestVariant[0].vt = VT_BSTR; U* i9 p! y, e& {8 ]: l6 q
requestVariant[0].bstrVal = itemStr; / @% ]% R3 _) o; }( f. j% R( P" K& i" R/ ^" B
topicStr = SysAllocString((WCHAR *) L"system"); 6 a$ a! e8 W0 J2 _5 s g% W VariantInit(&requestVariant[1]); 0 P5 b' I% a( E6 R
requestVariant[1].vt = VT_BSTR; 4 H& P# S" n j% B$ q9 F+ [ requestVariant[1].bstrVal = topicStr;. E) \+ k; h R2 U: _1 \& D
f: s/ Q: f- t m4 M. h* r J// Set the DISPPARAMS structure that holds the variant. * G! w' _" h5 T/ D' H* Z4 L5 _: q n* f6 y) J6 b9 A- w/ p
dp2.rgvarg = requestVariant; 0 l* _ F" t9 T/ A dp2.cArgs = 2;% h/ [2 S4 V* X" @- L5 L
dp2.rgdispidNamedArgs = NULL;/ d# X# _+ |( }% n, L
dp2.cNamedArgs = 0; 2 ], s( x, a0 J% y. o8 Z' I$ z: Y7 `' m) K+ b9 O; z4 S5 @$ I
var.vt = VT_EMPTY;. L' c- s4 B$ D ~) y
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// Call IDispatch::Invoke()( x- t Y0 o% j9 N9 J& o
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hr = m_pDisp->Invoke(+ i' ^. y, P' B+ g3 v: G* e! \/ o$ h. ~
requestID,0 t+ s' p& L) ~, F7 y
IID_NULL,, H2 n1 i( v' Z) D) H2 q `2 c
LOCALE_SYSTEM_DEFAULT,) y, ]5 L+ X% I4 L. d7 _
DISPATCH_METHOD, 3 `4 i- c6 [% k. Z. x &dp2, , b2 x( M2 o r& X/ n) Q &var, 0 o: y# \% S4 G1 P, l6 n$ K' f p% } &ei,' o% x% j, C5 h: k9 [! i
&uiErr);* X7 M" D) P7 ]0 ^" h& r& K; r' X