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:( ^; E# P6 w' a( L
Name = (WCHAR *) L"Poke";2 J9 z% O! S. G$ _/ M- m
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hr = m_pDisp->GetIDsOfNames ( 3 f! c5 Z+ Z2 o. @* b IID_NULL, // reserved' Z6 B5 Y% ^3 i1 ^# ^
&Name, // Array of names to get IDs for . ]; G7 g3 O# |# \* _7 t 1, // # of names in the array3 i* `& D" s, q6 x
LOCALE_SYSTEM_DEFAULT, // System locale 1 h5 s9 _! q2 X5 u D5 f* i) w$ E &pokeID); // Array of IDs to fill on output * K" l+ ?. z1 b 8 Q5 X C0 Y8 C8 l$ ^ if (hr) ) f9 P. D5 Y7 `( M* `5 p {/ R- u! |" ~9 {7 N3 {
MessageBox ("Get Poke Unsuccessful");$ K3 b% w: W R) q: g# P
return; 5 d9 r9 _: r) X" W5 B( ` }; {0 B9 o9 |) h$ R: O3 b5 |. x
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/**************************传递数据给extend**************************************/ 7 E. L6 i8 `% S7 c! Z. e pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ) f5 P d: c! A5 A. M: S& w- z2 F . F& U2 @1 V( W, [) [! V$ i valueStr = SysAllocString((WCHAR *) L"1232"); * R5 q9 S8 I" h% `; ]8 Z# U VariantInit(&pokeVariant[0]); ! B9 c5 N0 y1 f U; ]; G
pokeVariant[0].vt = VT_BSTR; n. Y% l2 e! I/ k+ v" I! X pokeVariant[0].bstrVal = valueStr; ( n! r. I2 w* C, L9 R8 ]/ i # d8 ~' L4 h3 C itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); * w1 t6 a% E/ b( K VariantInit(&pokeVariant[1]); * m2 \, k' e& [) q9 r$ n: j) r+ Q7 ~ pokeVariant[1].vt = VT_BSTR; f. ^( J7 o2 ^! N4 q# R+ w pokeVariant[1].bstrVal = itemStr; $ M* f4 d3 ^' X$ M5 \2 ^ 5 a' Z9 g, k7 v) k \, P topicStr = SysAllocString((WCHAR *) L"system");' a8 y" h' y9 x; `% I, M) t
VariantInit(&pokeVariant[2]); * n, `+ W; Y( A
pokeVariant[2].vt = VT_BSTR;# J$ l% L" @' q$ f) y
pokeVariant[2].bstrVal = topicStr;* d. m1 u; {# P" ]
- B8 }1 h' n6 G/ ?5 f& o/ b5 n! G// Set the DISPPARAMS structure that holds the variant. " P. i1 W1 g R+ K2 u ) P* e+ l. Q6 H* W& L: f, p U dp.rgvarg = pokeVariant; 2 d. C1 m1 Z `* L2 F$ @/ `, S6 l( e dp.cArgs = 3; 7 i! H ?* y2 x4 R: b( E6 q dp.rgdispidNamedArgs = NULL; , l5 v+ I2 N- m% S0 y dp.cNamedArgs = 0; * [* K5 q- @, D2 K5 v# \ [9 x; r# h+ T' N* D
// Call IDispatch::Invoke() ! @! X& d9 p4 d, d" ~0 A: }2 |
hr = m_pDisp->Invoke(! l, e1 h* F% r% L1 \- D
pokeID, C9 O. H0 \) |3 G9 T1 t- W
IID_NULL, # F( o/ l, G; R4 C$ v LOCALE_SYSTEM_DEFAULT,( q; z3 L0 [# q( W' G
DISPATCH_METHOD, 0 o' \) w. G5 w0 v _. O( Z' k+ @2 q &dp,9 J; w+ f3 f0 Q/ J" [5 r$ g A
NULL, $ G5 m( Q/ u" r/ t7 T- b &ei, 9 m7 V" i& @/ M$ l! X &uiErr); ; z8 I; r# U& b5 Q, K% Z% P# F P+ W1 C. L; W# p0 X2 U
SysFreeString(topicStr);3 O6 G- t* Y# e2 f" T
SysFreeString(itemStr);' ?9 j3 v* ~2 X! N" P
SysFreeString(valueStr);. L/ P* j3 M- c
- j( k% C5 P/ W n. K8 F; H" z/ M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??? + |( S) v H9 _( d& l7 L& m" Q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????( X! f. E1 H- n* J- p: l
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2.这是request的程序7 y, f3 v. Q% W5 ^
// Request a value from Extend % N% z9 q6 u2 ^; }. D6 Q3 k// 9 m% B3 G7 N( }( W0 k// Initialize the variant that will hold the BSTR. Set the variant's ' B9 W+ B( v5 q% K+ ]// type flag to indicate the fact that this variant holds a BSTR. Place the0 p( g5 O. M% h9 c( W
// BSTR into the variant structure.8 J, }1 H8 W) y' H
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);( Y9 L. Q6 L0 h8 C
2 N% r5 K, k2 G" L, S itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); " c1 P0 ~+ z* ]/ H& e- G/ Y VariantInit(&requestVariant[0]); ( L7 c$ J* z, _# M requestVariant[0].vt = VT_BSTR;8 _' R" o( {7 x
requestVariant[0].bstrVal = itemStr;- W( \9 @' e8 z( A1 y