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:. A& j7 {/ q: s) W0 E% s* l
Name = (WCHAR *) L"Poke"; : V+ d$ ^5 X2 r 5 E, R% d! T+ c( d* k hr = m_pDisp->GetIDsOfNames (+ O1 d( \+ J. _4 f$ J) v2 _, H
IID_NULL, // reserved - G/ b8 @' D. c &Name, // Array of names to get IDs for4 h0 o3 g+ c: s8 l% `3 x
1, // # of names in the array5 a+ m/ a+ R$ @2 j p2 h
LOCALE_SYSTEM_DEFAULT, // System locale ) y2 [1 f5 T: M, T# i &pokeID); // Array of IDs to fill on output 2 r/ }9 K9 [# j# x + m7 i& w4 Z6 b6 Y& S7 U: G' O if (hr) 2 Z0 U% a s- e- _; k: ]8 p { / O5 W+ u) m( I+ [% ^ MessageBox ("Get Poke Unsuccessful"); ' u1 i q" p/ x return; & {) y) _- ?% E3 S1 D3 I- w! z }$ |2 }* `+ G# J
6 {, C8 z2 i, e% X+ B( p/**************************传递数据给extend**************************************/2 B3 e; L3 ^/ e5 n
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);$ U: `/ {' h9 r# u
" k q7 O+ X; Y valueStr = SysAllocString((WCHAR *) L"1232"); / T. g5 ~) A! |1 L# a6 |. o VariantInit(&pokeVariant[0]); V" D- A- U8 n/ a5 N5 N) Y5 j pokeVariant[0].vt = VT_BSTR;3 R; |+ q& n/ H
pokeVariant[0].bstrVal = valueStr;4 o9 h9 ^9 V7 Q: I x- I8 I
- d) D2 m+ K. S' k. J itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ F1 m8 ]9 C% r, J/ f
VariantInit(&pokeVariant[1]); $ {2 I1 f! G8 U$ R) P pokeVariant[1].vt = VT_BSTR; % r0 r/ K5 b. }* T+ t v pokeVariant[1].bstrVal = itemStr; 8 j, G3 m2 b. L 1 _" h# D/ p( n" P% L topicStr = SysAllocString((WCHAR *) L"system");' i* T- `+ l) }2 J/ s
VariantInit(&pokeVariant[2]); + J; Q2 [ t/ o" p" }9 v9 | pokeVariant[2].vt = VT_BSTR;% ]' Z j5 h }$ B; w
pokeVariant[2].bstrVal = topicStr; $ X1 {3 N; l7 P" g U H2 S / T7 P2 |; D }, O* V( e& e// Set the DISPPARAMS structure that holds the variant. - m8 o4 H4 ~' G' Z+ ~4 E9 Q R# N9 ]! _$ M dp.rgvarg = pokeVariant;5 A3 A) n, t7 Z0 Q* j7 F4 Z
dp.cArgs = 3;9 u: Q4 Y3 U0 t7 Z0 b0 s* Q# F: ^
dp.rgdispidNamedArgs = NULL;- z8 u, L. h/ q/ {% s
dp.cNamedArgs = 0;) t1 Y$ q+ b f9 V* Z% ]) v
- B& r4 c- @3 ]// Call IDispatch::Invoke() % H. @4 e7 r f' U1 W7 f1 y4 z % H) F* e% S; s9 v+ \9 J/ ^ hr = m_pDisp->Invoke( ! F1 t6 {! t8 R, |% p pokeID, " X: i1 C6 ~/ @ IID_NULL, @* ?5 K3 `# j; |. U
LOCALE_SYSTEM_DEFAULT,7 d" A& w. V) G: D+ [" |
DISPATCH_METHOD,, r( _3 p" U' k6 z
&dp, # X M% X" ^" ?9 a, E NULL, " t8 y8 Z, X v+ p4 V' N &ei, " ^! y, m* W; M1 r &uiErr);9 r1 B% E, Q1 H' N) @+ L# J
+ l8 S% Q1 j* R SysFreeString(topicStr);6 q, `; s/ z6 N5 M. P
SysFreeString(itemStr);# k- b8 Q- U3 |& C ?8 U
SysFreeString(valueStr);% {/ L& ]: M) E& g
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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??? % w3 A% c% ` n$ i: y- Q% 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???? ; K2 q) y- I2 P1 L9 J+ V " \! J1 f) ]' n- ~( C P 2 ~7 L5 D: R; n! `. h2.这是request的程序 & @; G Y* M# r: n! v// Request a value from Extend5 y1 F9 M6 d0 m2 A
// $ i9 s6 R6 {. {: B# S// Initialize the variant that will hold the BSTR. Set the variant's6 c8 p v [1 c/ x
// type flag to indicate the fact that this variant holds a BSTR. Place the % ~( A* C7 k2 D* _ r+ K// BSTR into the variant structure. 8 q% l# v- H+ o L( C- R$ n' z: w2 F, n- l3 z0 R" A- Z6 u
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); . l) J- k- o; h% k, H. C7 i: P2 D( e . H. j; }# q, t: A5 `
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 h) X% r) Z/ e2 ?, V- ^9 M" ^ VariantInit(&requestVariant[0]); : x4 I# K- N5 m h9 L% y
requestVariant[0].vt = VT_BSTR;7 ~8 i8 R9 W6 u$ o* |+ H p" i9 t
requestVariant[0].bstrVal = itemStr;$ N$ ~8 s6 G3 Y( w& r
* v6 b" G" g& H! ~' Z3 ^ topicStr = SysAllocString((WCHAR *) L"system");$ S% X" X: f1 N1 b' j) _
VariantInit(&requestVariant[1]); 1 x- P& v' B2 p) U! X( I9 g requestVariant[1].vt = VT_BSTR;. ?# v F; I5 P6 `9 {, x
requestVariant[1].bstrVal = topicStr;- w$ T, Y( w/ {2 G
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// Set the DISPPARAMS structure that holds the variant.! M& F- J# \6 C9 ], H" z* H. a4 J
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dp2.rgvarg = requestVariant; / s8 W- _. c5 C" q j- \2 F5 r dp2.cArgs = 2;, H# v2 V7 {7 L" c3 w0 Q+ \9 G
dp2.rgdispidNamedArgs = NULL; $ p9 i g' X' X4 n dp2.cNamedArgs = 0;3 M. t" K) V1 ^+ d; L$ f" w
) B' E' b9 t6 @$ A4 I& `* l var.vt = VT_EMPTY;8 W6 x C$ F7 X# J6 n6 e