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： 2 J0 n7 z' a6 Z! n" X# b( iName = (WCHAR *) L"Poke";( b( f% U) |; _' D2 ?1 h2 [
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hr = m_pDisp->GetIDsOfNames (' R5 ?1 c8 H) Y5 k/ J' N/ E
IID_NULL, // reserved' R8 { Z2 n; o; M* X
&Name, // Array of names to get IDs for ' z, D+ V, ?3 s; }7 ]. q+ c, t 1, // # of names in the array 6 U4 _( a$ f+ A" F$ C3 T/ k4 s LOCALE_SYSTEM_DEFAULT, // System locale , W+ j P; Q% |5 z: ?2 r8 E" N &pokeID); // Array of IDs to fill on output $ G1 L1 g% I- ?/ W2 D& t4 a 1 n, B# m8 A* [( H. l! E
if (hr) : @; G" c& g" f3 p7 [) C { - e0 d1 z5 I- r MessageBox ("Get Poke Unsuccessful"); 8 v! R" c6 ~& N0 I, L) m/ } return; 6 T X/ I: Q7 v0 r8 D% e) c. C } x; t, l' S7 Q1 }9 S1 _1 \6 @/ T; k8 v' l* H7 u; H
/**************************传递数据给extend**************************************/7 P- p7 k- _7 B) K
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);. k& `" ` H, @; E+ k
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valueStr = SysAllocString((WCHAR *) L"1232");$ ?* e; x7 M2 p9 D ]% F
VariantInit(&pokeVariant[0]); # x0 A8 y0 Q; \
pokeVariant[0].vt = VT_BSTR;# e; @2 v8 V9 W) p0 E
pokeVariant[0].bstrVal = valueStr; - O8 o5 K G3 H% U' m3 Y 3 H7 u. ? U3 I& [5 p C itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . [3 U# g- E+ y+ K VariantInit(&pokeVariant[1]); 4 d7 |' {6 P% H1 y pokeVariant[1].vt = VT_BSTR; " C) N, W2 E# c: H pokeVariant[1].bstrVal = itemStr;* H \( O' d2 h }5 O0 {% E& y- \
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topicStr = SysAllocString((WCHAR *) L"system");1 Y3 V& \" K$ w/ Y8 M: l! T
VariantInit(&pokeVariant[2]); F* h. a3 V; P4 p2 ?/ R1 C pokeVariant[2].vt = VT_BSTR;8 A# s0 x. N; V. x+ y' U/ j
pokeVariant[2].bstrVal = topicStr; 9 I7 n/ n* }' ^9 @* c1 `9 U$ ~7 g9 I% P! g. i
// Set the DISPPARAMS structure that holds the variant. ; |: P# j6 c* \- C. K+ { ( o. L6 f" f% R- A- a. `, M W( @ dp.rgvarg = pokeVariant; ) V4 @8 [) ]! f- }+ c0 ] dp.cArgs = 3; 4 U" |/ N8 L( I dp.rgdispidNamedArgs = NULL; ! c* o% {* _4 z8 D8 x9 c8 T1 O( j4 a dp.cNamedArgs = 0; / i9 C" X( D, H- E/ w5 w; J- ^# n& x6 d, B4 Y7 b
// Call IDispatch::Invoke() . E5 B+ \! h8 |7 q k5 |' s" H5 s. z; d4 r, z+ v( C
hr = m_pDisp->Invoke( ' | w; s: e7 c0 m3 i! p: ` pokeID, / B3 T( z: D/ \4 [# ^! t" F1 E IID_NULL, 2 F$ h6 ^$ u0 ] l3 G7 K! n& Z LOCALE_SYSTEM_DEFAULT, 7 n# B2 g8 Z0 r5 f3 D DISPATCH_METHOD, & _! R: k3 N) N &dp, / V7 L% r# c. `( V' U/ U NULL, : x; x9 V- H# ` &ei, ! `, t% {, L" v &uiErr);! ^/ M, a0 G8 m) g0 {9 T! n
A C* n5 P4 a! g, Y- w SysFreeString(topicStr);& i+ r) o5 Z( {3 V; Q8 N) }' f
SysFreeString(itemStr); 8 }* l* v5 F P- ~ SysFreeString(valueStr);9 k1 P$ o$ Y5 Q, b
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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？？？5 \5 z3 E& q+ N4 l
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？？？？ P! M3 t/ g1 v8 b9 p 8 A2 B/ H- V7 K& U/ H- g$ u# t9 ^* p/ ] h& ]' ^
2.这是request的程序! ?7 d+ }6 s( x) ]7 @
// Request a value from Extend ' z& n, c$ _4 o% j3 z// 1 Q. d; j. z; Y// Initialize the variant that will hold the BSTR. Set the variant's% y/ i: v- W! i/ v
// type flag to indicate the fact that this variant holds a BSTR. Place the 4 U9 d2 W, b9 Z" Z5 ]1 l// BSTR into the variant structure.* c- T& m" V9 {" D) r$ D
9 J8 L; a) }3 r# F requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);2 P) E$ r2 M s0 O) k+ c7 e7 v
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* ^) ~7 n9 V/ j# }( @1 k
VariantInit(&requestVariant[0]); I ~7 b5 ~0 r* J: q# R2 _, S requestVariant[0].vt = VT_BSTR; : A4 G, S, A: B% Q5 B) r% W' j$ G requestVariant[0].bstrVal = itemStr; 3 P( u) z( k1 _" o1 J5 a; ~* R6 J: f2 ]
topicStr = SysAllocString((WCHAR *) L"system"); + L; i8 T. z" \2 I) E) Y VariantInit(&requestVariant[1]); 5 s5 }- @. _+ L% q requestVariant[1].vt = VT_BSTR;# ]+ s& T K" L
requestVariant[1].bstrVal = topicStr;2 V8 ^( h+ C0 r! P. Q3 E
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// Set the DISPPARAMS structure that holds the variant.6 x' n. F' q! N: U+ J
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dp2.rgvarg = requestVariant;3 [) A |. j: M" p
dp2.cArgs = 2; " L" V6 J% j* w# z* p* _ M dp2.rgdispidNamedArgs = NULL; 6 B& r7 [' g" r, C; p dp2.cNamedArgs = 0; 9 Z) M- x3 [5 K. v+ g( [% Y( g( W, b/ o3 q* S% J- l8 Y. o
var.vt = VT_EMPTY; ' n5 Q3 ]% X, a1 H% `' P / s1 z5 t6 b6 [9 s+ R* W5 k- Q3 ?// Call IDispatch::Invoke() / r' |1 S+ P9 j [" m ; E% _' O. Y. h& @" ` hr = m_pDisp->Invoke(% g8 e" M$ p* n" R: Z) e
requestID," @, q: r5 Z n! v
IID_NULL,: ~8 l0 K! P2 Z2 p7 {: R# U) S7 S" R
LOCALE_SYSTEM_DEFAULT,6 u+ j4 G3 h9 e/ m5 |( Y, r1 y
DISPATCH_METHOD,9 W& n2 ]) K& b7 z$ {
&dp2,: ?9 P0 Q/ H M, D, I! i+ Q
&var,& R4 m7 }& V8 C& X
&ei,1 u2 T6 O6 m5 H9 J3 m2 e
&uiErr);: z4 x; m& p7 j% A
发表于 2008-11-25 19:37:03
