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:; q' k6 W& A1 t9 Y& m7 e8 C4 u" a" t
Name = (WCHAR *) L"Poke";6 v3 H% l% n# p. r5 V+ q7 {. |6 c
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hr = m_pDisp->GetIDsOfNames ( 7 m' i6 G" W/ k% Q5 v+ m& m IID_NULL, // reserved" D& j- P8 s" a( S" p
&Name, // Array of names to get IDs for * S# W' z* |. A) {% l 1, // # of names in the array4 p K% W4 E( y7 n" J
LOCALE_SYSTEM_DEFAULT, // System locale; P: M, [& [# ` N
&pokeID); // Array of IDs to fill on output& S0 t2 a& x0 I; U
0 K4 W- A$ H8 M0 o$ i1 q- i7 k if (hr) 4 a/ @2 ~: o! P { , D1 `0 Y8 F4 g1 o MessageBox ("Get Poke Unsuccessful");: `% ]- i9 e/ O& Y
return;( M) [$ y' t) Q, V
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/**************************传递数据给extend**************************************/! u& I9 g% e3 R! T
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 3 f' F; S( f& [8 L, j( Z $ b5 I$ a. u: s# P; }
valueStr = SysAllocString((WCHAR *) L"1232"); / ^! r) ]. c8 p2 R4 f VariantInit(&pokeVariant[0]); ! s$ I/ s6 O. v( r5 B+ Q
pokeVariant[0].vt = VT_BSTR;: B1 x# @: ]8 T/ y7 J& l6 O
pokeVariant[0].bstrVal = valueStr;9 z$ @7 p+ n+ g& D
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) R8 C8 H* Q0 |% r7 ]# k
VariantInit(&pokeVariant[1]); * y( j& h0 n6 s& b7 g$ R
pokeVariant[1].vt = VT_BSTR;1 \% q5 \4 K5 t* X2 ]' e2 X/ q7 A z
pokeVariant[1].bstrVal = itemStr; " x( @3 X) u; P) g. `1 l( |6 Q' d% p# g2 X
topicStr = SysAllocString((WCHAR *) L"system");: D8 d; {; g! r+ }; `! }0 r: x
VariantInit(&pokeVariant[2]); . P1 D" Y" `: r& k. `' r pokeVariant[2].vt = VT_BSTR; ) a: c) m, u c( m8 B7 W/ h pokeVariant[2].bstrVal = topicStr; 4 k/ A: T* g/ F C: D0 l. d7 t9 d2 U; U, i; P
// Set the DISPPARAMS structure that holds the variant.( g* D) l; J8 w/ N h/ M
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dp.rgvarg = pokeVariant;3 D+ G6 U4 G+ H$ ~7 l. k. z
dp.cArgs = 3; 3 V2 J! o) F; y: N. n dp.rgdispidNamedArgs = NULL;3 a& E2 O* Z% t5 R7 U: e; ?
dp.cNamedArgs = 0; / R4 b" ]9 N, }( ^$ b, A2 Q) ]$ P ; O! ]" ^- S! O, ~) C// Call IDispatch::Invoke() 8 f4 c) K; d8 L7 i! F7 O* n& \7 G+ |4 E9 P
hr = m_pDisp->Invoke( : ]) j; Z! r" G7 J4 E8 S3 z. S4 l, j pokeID, 7 v+ |% l7 q* J5 c6 \, Q* _. E% S6 a IID_NULL, ( h5 p# @/ R1 ?; }0 j- f LOCALE_SYSTEM_DEFAULT, 7 c, L# b: z" ` DISPATCH_METHOD, 7 x. Q2 [* y5 I &dp, ' D2 y8 e/ D4 l- K NULL,; B3 q, z3 b$ D8 L8 l
&ei, 3 M8 V; r5 \' D, n &uiErr);, q% T0 X9 F8 h- H3 A2 o3 J
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SysFreeString(topicStr); - U* I1 ]/ N" A) n* j+ U( j5 Y( a8 d SysFreeString(itemStr);: D; p1 ~ O" ~. p
SysFreeString(valueStr);2 B$ o( q- F2 e, G
( I# U/ Q4 {) f' D9 X1 A; A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??? & m5 y, }. G" ~) Z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???? 8 W& Z0 e* T# z: K, M6 e6 v2 u, }! e! L# ?" _
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2.这是request的程序5 X+ K | u) B/ n# l% G
// Request a value from Extend, q, O& e v& t- A7 X; v/ F
// 6 `# G& ?$ x5 n1 m1 G& W6 f// Initialize the variant that will hold the BSTR. Set the variant's5 Y$ e( C# }1 M' `
// type flag to indicate the fact that this variant holds a BSTR. Place the3 K. E0 X# b) |0 a4 Z% B
// BSTR into the variant structure. " L" w% s6 q$ ]$ ~" I( C* ]7 |; w! u
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 9 j5 b( H) w1 {6 }* c8 f8 e - L- `& S4 _- `2 i itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 9 H9 h, n+ G* s v& U! [: L' W9 u VariantInit(&requestVariant[0]); & l7 t6 s/ {+ q7 l requestVariant[0].vt = VT_BSTR; / q' N9 i+ c* g6 L4 _ F. J, G requestVariant[0].bstrVal = itemStr;5 N* F% m% I" y
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topicStr = SysAllocString((WCHAR *) L"system"); 0 @+ k0 i- ?- Y VariantInit(&requestVariant[1]); 5 W: @) e" x! D( g& Y requestVariant[1].vt = VT_BSTR;* z% ?1 A& s5 d3 k3 V0 \ L7 \
requestVariant[1].bstrVal = topicStr; + T4 f% M, \& X8 s+ l( j 6 N/ P5 ]' x" L* a, u, U; F/ B// Set the DISPPARAMS structure that holds the variant. % e0 u* m0 b7 e8 s/ f9 h5 e, @3 N 5 p( E u0 o* H1 c- J dp2.rgvarg = requestVariant; 8 ~/ p( m: w# g( v4 ?9 Q dp2.cArgs = 2; 3 _! i7 v& t3 G; D9 l dp2.rgdispidNamedArgs = NULL;5 R, w7 R: T3 f, Z, i. i
dp2.cNamedArgs = 0;& j4 \( Q. F, l" [) F+ ]