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: : T9 K. C3 s9 v) ]8 N7 `Name = (WCHAR *) L"Poke";* v. T4 E/ C9 z3 N8 z8 [" N- @
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hr = m_pDisp->GetIDsOfNames (+ Q3 G+ z& R- C! T
IID_NULL, // reserved; W x) P& G% }" o, M
&Name, // Array of names to get IDs for4 @. R) T! \1 G/ |! a2 v" Z
1, // # of names in the array " z% x) x, z3 x" m LOCALE_SYSTEM_DEFAULT, // System locale1 K$ G& ~+ N. s- A: q$ I, Y
&pokeID); // Array of IDs to fill on output * _1 l4 O% d! b( w: n3 F. m " h* o; ]) h" ]" T
if (hr) % J2 T$ u; _6 }6 ]% A* j) U {: K' Y- E# }" } V- k
MessageBox ("Get Poke Unsuccessful"); , U5 K! o: C( ]+ h" q return;% N0 w6 B# `+ [# [ o2 F
} 6 {9 c1 T# V9 h W) R 8 \0 K) h, [. l3 i/**************************传递数据给extend**************************************/: B+ O8 Y6 G1 H( E; f7 R
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); : W( [& F2 b/ V, h6 r/ h 4 ?6 h. a; {5 z7 d) V6 i8 K
valueStr = SysAllocString((WCHAR *) L"1232");- V0 Y% {! S O$ r9 u* I. n
VariantInit(&pokeVariant[0]); & [( L( I- T2 ~ pokeVariant[0].vt = VT_BSTR; 3 d5 Q" x3 i# b, O: f9 }- @3 ^ pokeVariant[0].bstrVal = valueStr;, D6 ~( N. n. m8 L8 w6 N
, k* X( r. \9 `% {% s itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # S6 x6 J5 x3 v2 K6 L VariantInit(&pokeVariant[1]); " F# V1 y: ^) W4 e( D4 e
pokeVariant[1].vt = VT_BSTR; 4 H7 C k1 P) f/ `; Z7 ]- c pokeVariant[1].bstrVal = itemStr; ; t4 u8 G7 j' g6 g( b# J8 B5 X+ l
topicStr = SysAllocString((WCHAR *) L"system"); * k4 n. R# o i5 J VariantInit(&pokeVariant[2]); $ b2 k* z0 |3 V& C
pokeVariant[2].vt = VT_BSTR;1 h- Q& c2 \- i' z3 _7 b. a* d
pokeVariant[2].bstrVal = topicStr;7 m- b0 U: y3 I1 x% T
, K* Q- C* ~) [* {// Set the DISPPARAMS structure that holds the variant.2 g2 X1 ^# G7 z* d0 u; p% N5 o
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dp.rgvarg = pokeVariant; , B$ `' h( S. K/ a5 s6 k u" s dp.cArgs = 3; , s9 {( V. p0 P- t9 S dp.rgdispidNamedArgs = NULL; ; [$ z. L& z$ D4 ?8 Y dp.cNamedArgs = 0;: \; f& f: _% {0 h2 R
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// Call IDispatch::Invoke() % j+ D/ P) }* z& G( l, Z4 b5 ` 1 U1 S$ h* O, m1 N g4 z hr = m_pDisp->Invoke(1 q( F. D9 T0 m. H' T* X
pokeID, : |+ f! [' s7 |7 h4 i0 z* U IID_NULL,3 \$ ]* O( D, ^" l1 O" }6 v
LOCALE_SYSTEM_DEFAULT,0 ?- b8 q3 I- \8 f& |
DISPATCH_METHOD,: t9 ~8 v ?- a0 N" X" L
&dp,' r+ v1 k! j7 ]4 x v/ J
NULL, d2 `, D3 M2 v' m% G i8 ^2 U1 U
&ei, - |5 e; Q) X+ R" b8 v) f+ A8 _ &uiErr);. g2 k& D5 e3 o7 P
# N$ V1 G8 W+ a' Z2 L SysFreeString(topicStr);! _# k$ k. T0 L5 i
SysFreeString(itemStr);. r6 ]9 b5 s$ u$ r [# i
SysFreeString(valueStr); 2 _) h: @7 W& }, r+ J" W6 }3 A; ^3 l& 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???: C$ }% [+ @; L1 R
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????- K5 r' j6 [& G. l, y# U3 M
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" r( `. W }8 W4 `; b2.这是request的程序 * ]% G) P7 K( q7 @+ z// Request a value from Extend 0 {$ u2 g4 {& N) r# P8 M5 ?( I//% W- e; u9 {3 s
// Initialize the variant that will hold the BSTR. Set the variant's 2 a" t" T# h3 _+ I/ P6 k// type flag to indicate the fact that this variant holds a BSTR. Place the/ K" P" l8 p) a# _7 q
// BSTR into the variant structure.6 B& J3 H% ]8 R! ~% Q
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);; }$ H7 K9 e7 U2 A5 l; q$ l9 }) _ F