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:8 D6 d2 [) a! ^; x* U+ V
Name = (WCHAR *) L"Poke";+ l/ {6 J6 }: @7 {2 @. Z1 k
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hr = m_pDisp->GetIDsOfNames (+ [$ | M8 _5 C7 b6 ?$ s# o
IID_NULL, // reserved 4 e' Q5 G' H5 b: } &Name, // Array of names to get IDs for8 r5 c8 \" |1 j1 T1 i# o* Q+ f
1, // # of names in the array; { U; _8 Y% `! T* E0 ~. N
LOCALE_SYSTEM_DEFAULT, // System locale& b; e& M* H9 ?' Y' N; ]
&pokeID); // Array of IDs to fill on output + e Q! J3 M0 X, h1 i $ j, R+ c1 J/ R. r if (hr) * @9 {: {( Q! o% D' F {: V- a- }/ U% D7 ^7 x
MessageBox ("Get Poke Unsuccessful"); 0 s; l& Q# f/ c return; ' L9 f' A# N+ h" X- j }5 i, D0 p7 O8 D7 X
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/**************************传递数据给extend**************************************/ - I4 P r5 K# } pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);1 V: e; a: r% S, g. X5 p( y
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valueStr = SysAllocString((WCHAR *) L"1232"); a# y. x7 Y* Q) Q$ f2 E VariantInit(&pokeVariant[0]); 1 p$ k6 m0 v L
pokeVariant[0].vt = VT_BSTR;, H* H1 o& p7 B L
pokeVariant[0].bstrVal = valueStr; 3 r) o& b3 g: n- y + ]4 s$ A' B) H$ L itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( j/ `: _* E! ^
VariantInit(&pokeVariant[1]); 9 N8 ?9 O& g& R/ w8 Y+ L* k pokeVariant[1].vt = VT_BSTR; ; Z2 H4 W" p! j; H9 x$ f _# P X' B pokeVariant[1].bstrVal = itemStr; + ]" \2 `# X% M& b+ U6 }8 t+ ]5 C* r4 B& h: E _0 T" k# ~+ I
topicStr = SysAllocString((WCHAR *) L"system"); w5 N( w4 _# r) h7 f7 Z0 |- s ~
VariantInit(&pokeVariant[2]); 3 n5 `. i( P$ q9 L2 s
pokeVariant[2].vt = VT_BSTR;, M1 ]5 d5 d" Q! c; s
pokeVariant[2].bstrVal = topicStr; 2 I$ e5 w+ u. z, f' R, w 1 a, P3 ^' s" H ?# ]// Set the DISPPARAMS structure that holds the variant.; R2 k( R2 z% y3 }3 B* }& m
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dp.rgvarg = pokeVariant; 9 b+ W6 x" O) k dp.cArgs = 3;4 w1 s1 |2 H/ [" t4 |, P: ]
dp.rgdispidNamedArgs = NULL;- g% f! v7 [9 H7 ?# s, ^& N6 e
dp.cNamedArgs = 0;8 Z- B5 Q* i$ w/ ] y* d Q
0 V' z& G& K3 G6 ]2 d$ v3 r// Call IDispatch::Invoke() ) S. _ T+ |+ P0 K$ |- H+ o/ o4 \" o. p* l* t% Q9 b
hr = m_pDisp->Invoke(0 X0 h# t: u0 w$ ]& L
pokeID, , d9 U% g {0 x IID_NULL,' C1 c9 K% i3 V$ b; J
LOCALE_SYSTEM_DEFAULT,1 i& Q, A5 p) |3 ]$ y- T5 v+ L
DISPATCH_METHOD, - ~0 c& }& a" R( f &dp,% w1 R6 @# W) ~6 w- o
NULL,. ?: n- S5 y3 {# G" U2 }' t% {
&ei,9 T9 b7 o9 T1 q8 ?- f7 J' ?
&uiErr);* M0 J! _2 |) c; C3 b7 W8 |! d( e
7 O4 H1 u# O- x4 L1 E7 v SysFreeString(topicStr); - ]" m& _+ q! x# u# e; G SysFreeString(itemStr); ! c+ W* H( l. C0 I4 } SysFreeString(valueStr); d _2 R: V- O5 Z6 ^. k3 }% X6 r
, \! g, m8 X% `4 ]* u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???/ Z' K- v5 C9 G9 v. ]
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????! z2 p* X" A I9 I3 G Z+ Z8 K
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2 L2 m" p I9 m; x% `# G9 D2.这是request的程序 - C2 U# d! }+ e" X* u5 Q3 }// Request a value from Extend) s: N- c% ?$ K. o
//5 A; N% T& D! i+ L
// Initialize the variant that will hold the BSTR. Set the variant's / q+ Q y+ e8 F+ k6 p// type flag to indicate the fact that this variant holds a BSTR. Place the; }+ r4 I) ?4 z' ~' t8 L) ]( a) h
// BSTR into the variant structure./ w( f1 K" j! c2 }$ d5 o