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: \: k8 H) j2 d1 |# ]) x+ x3 lName = (WCHAR *) L"Poke"; 9 ], }. R/ b0 d ( K! |: g* w+ J+ I) Q2 y2 F
hr = m_pDisp->GetIDsOfNames (( v, \$ E' K( [3 e! q$ Z# X" J3 Q
IID_NULL, // reserved. d+ G6 U: ]$ w& W
&Name, // Array of names to get IDs for ' R( x; f5 s" O9 n 1, // # of names in the array- v `. [) W/ ^$ F# y9 c! [4 x: H
LOCALE_SYSTEM_DEFAULT, // System locale : D; o4 _, A; }* V# ]' q) B7 I &pokeID); // Array of IDs to fill on output - V6 ^/ [, \+ ~4 b$ C) b( U1 ` - T6 C2 v4 ?0 {" j% [
if (hr) " q8 k, E) ~, O& t4 j9 A8 X; l { , V5 z4 }, _% c: l% U MessageBox ("Get Poke Unsuccessful"); ; V2 x4 ?+ O6 X) [ return;+ V) ~- h9 @; f2 k6 F- ~. m4 e
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/**************************传递数据给extend**************************************/3 Y5 Y* a1 }* _
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);$ P2 e7 \; h: J3 [$ ^: B- T
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valueStr = SysAllocString((WCHAR *) L"1232");" P! Y" ^" ~. i/ D
VariantInit(&pokeVariant[0]); . _; V% w" v( J/ @, ]2 I pokeVariant[0].vt = VT_BSTR; + G6 ^1 Y" P6 A5 Q' K$ {/ _4 n pokeVariant[0].bstrVal = valueStr; * V/ n# q4 c! x" w; G a+ c ; Y% s% g/ ~8 h! x6 u6 h itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. X% R5 E: x; p8 w7 i- c, P% _
VariantInit(&pokeVariant[1]); / o8 K; `# T" R+ S/ p9 d pokeVariant[1].vt = VT_BSTR;9 {& q2 f, _* h( J- q: {; H' g8 G
pokeVariant[1].bstrVal = itemStr; 2 m" j2 f: }* p+ f. V$ x, @& n8 @1 P) \. Y
topicStr = SysAllocString((WCHAR *) L"system"); % }- d5 D6 E* T' u VariantInit(&pokeVariant[2]); . Q1 y7 {! p* e4 u3 l1 g& I; W pokeVariant[2].vt = VT_BSTR; * L; y) G9 N B. O# J pokeVariant[2].bstrVal = topicStr; # _2 P$ o" V: K+ l9 N) j7 k( K8 s, N+ L8 i
// Set the DISPPARAMS structure that holds the variant. ! h J" X* u: Z c; N! U# r* P" D3 q# S+ q# w7 A1 c+ l
dp.rgvarg = pokeVariant;, n. \6 e5 x. t& m0 ]
dp.cArgs = 3;% X; Q3 u/ Z" H9 z: @
dp.rgdispidNamedArgs = NULL;% p9 [! S X) _2 m- F
dp.cNamedArgs = 0;8 Q7 p9 Y/ F# u1 X* H
9 n( E2 F- \4 P6 O// Call IDispatch::Invoke() 3 s3 K& l; T8 e4 m: b/ t; o s 6 q* Z! @. h8 M. K. M$ |, D hr = m_pDisp->Invoke( G0 i2 G" A2 o ~5 D+ s. X: Y+ ^4 M
pokeID, ; J. K6 p" f# G. T+ \5 x: c$ g IID_NULL, 3 z& K) e+ N4 {) V LOCALE_SYSTEM_DEFAULT,( J- r; S- W5 `
DISPATCH_METHOD,+ ~: F) f" r7 n! a0 S: K4 B/ l" k
&dp,6 B2 I* M) s- m4 `0 t9 V4 O" `8 P
NULL,& V, }7 C) ~: { M" M' N
&ei,( G3 R4 F; R# A) ^/ m: d8 U8 ~& \
&uiErr); 0 ~( @3 j" b) b ; ?, i* O+ F S' u: f% A. ~ SysFreeString(topicStr); - _6 v& ~* \. Z4 l9 l Q0 _ SysFreeString(itemStr);3 ^. w' W! o& K/ Q2 t; b: d' j9 K
SysFreeString(valueStr);) b/ E* m9 E& Y7 K* s
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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??? 4 P& r9 m) Y8 X, k" i) K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???? + e. a! [' J( _: X % o6 U, D4 v, s5 H: p ^; l9 ^( f8 a1 i2.这是request的程序 W% G& m: j- l% {4 Y- l( ?3 ^// Request a value from Extend ; I3 U' K W4 n//# w; N: y& E. p/ e
// Initialize the variant that will hold the BSTR. Set the variant's 8 @+ O: Y5 Z. Z0 b" m// type flag to indicate the fact that this variant holds a BSTR. Place the4 K/ p. S" C3 S6 R: @! m7 p
// BSTR into the variant structure. R: i9 I3 a! C5 }( V# B1 W