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:' F5 |/ E4 P( p# `! I
Name = (WCHAR *) L"Poke"; 3 `4 E3 B' D" w4 w) F: o' l % I% X. R9 c' J. W% l. i3 r. W
hr = m_pDisp->GetIDsOfNames ( 9 D! q R7 Y5 z4 H IID_NULL, // reserved 4 a/ Q. X) {3 j! U &Name, // Array of names to get IDs for0 Y. }4 y( l, g6 q z
1, // # of names in the array , |9 k/ G% G2 x0 z( e& K% {( P LOCALE_SYSTEM_DEFAULT, // System locale $ i/ ^5 W& e( b0 i+ [, P &pokeID); // Array of IDs to fill on output' M% d9 k: H3 @$ R9 b0 } K
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if (hr) # n( f+ n& F6 W { " A$ X# _ }" m) k( C MessageBox ("Get Poke Unsuccessful");" t; W# D% z( h; s- H* A" k
return; ! V+ ^: b" d1 x( }) R$ m- J }7 }( |3 P- S+ p
5 y) v5 u F3 M4 ~8 [7 w valueStr = SysAllocString((WCHAR *) L"1232"); / M1 |4 l i$ k VariantInit(&pokeVariant[0]); ; W: E) F: Q* _
pokeVariant[0].vt = VT_BSTR; ( b$ k. J; f8 C3 c6 ]5 j$ L. _ pokeVariant[0].bstrVal = valueStr;/ w, K) x I+ K
9 `) y: |0 u2 y, _: _ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 Z% e, m/ @2 ]# {, F$ d
VariantInit(&pokeVariant[1]); ' V% {# q9 ?* i! S/ R: M* j. f pokeVariant[1].vt = VT_BSTR; / K6 i3 j$ h! C# M/ D9 z pokeVariant[1].bstrVal = itemStr; 4 F: y7 Q% M, {- i- S; M& R. g4 I' |# c
topicStr = SysAllocString((WCHAR *) L"system"); 1 C% L, [6 q, _ VariantInit(&pokeVariant[2]); . i6 z9 j D: f; D2 E pokeVariant[2].vt = VT_BSTR;8 L1 D3 e2 `" }* S" D( e5 R
pokeVariant[2].bstrVal = topicStr;8 X1 L# ^! T( B. I& z
8 z: Z3 D: e1 j, Q6 D" @2 _// Set the DISPPARAMS structure that holds the variant." y+ F2 K+ t, F2 M7 V
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dp.rgvarg = pokeVariant; & E$ Q, Y m3 \' J dp.cArgs = 3;* W- h9 s2 ]+ ?/ p
dp.rgdispidNamedArgs = NULL; \3 h5 K7 \! C: t1 I dp.cNamedArgs = 0;) ]2 [" E# X6 V a
' u0 ?+ R7 c1 S! o9 b6 x// Call IDispatch::Invoke() 6 |0 F, { t, c' _ . T; x4 C% I$ d. R( _# ~ hr = m_pDisp->Invoke( . E. \6 c& S: @8 H: s7 x( X pokeID,! N8 _! t8 ^/ F B3 {3 p
IID_NULL,3 F2 Y$ J; u. S- I1 r3 j& g
LOCALE_SYSTEM_DEFAULT, , F @! G c7 U DISPATCH_METHOD,2 ?" r* t. d) M$ W
&dp, ( X0 U+ A# b' M NULL,# u9 o3 @) y6 C" L/ y
&ei, + m! d' U2 c) ~) A/ C- j &uiErr); 2 _6 Z$ O1 y* V! j! I - P1 T6 \! W4 G SysFreeString(topicStr); % b7 ?% B0 M4 w" O+ Q; D" i SysFreeString(itemStr);3 N, Y% v U. B8 W2 r
SysFreeString(valueStr);( A K3 `" w( T
: M3 y# o7 i! ]" I+ A) y) O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??? & Y K' [0 H/ R1 X- ~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????$ l4 k8 K8 Z0 t. L
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2.这是request的程序9 H, M" [. |: m- H$ @' B& F% c! J
// Request a value from Extend8 |3 V o) m6 W" X! x% d
//9 U; X, B8 U& z$ T1 u
// Initialize the variant that will hold the BSTR. Set the variant's7 n' {# m7 O1 `5 t2 _
// type flag to indicate the fact that this variant holds a BSTR. Place the 2 G- S! M8 k. K, e% l* I1 s// BSTR into the variant structure. # b( S7 f1 E3 o2 w5 g% J9 X 6 H2 b3 f2 G+ O* | requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); % w& @0 ?1 j" R/ M3 v: B: p 4 w3 ? K- w, u5 q4 c7 e) {8 J! V9 h
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");, B) s: z( L, J. q
VariantInit(&requestVariant[0]); ! C, B, i$ N/ |- I% f. b% s m$ s requestVariant[0].vt = VT_BSTR;. n# ]7 y2 J% [0 @
requestVariant[0].bstrVal = itemStr;: v8 {# u8 h: n9 G* P" r* t
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topicStr = SysAllocString((WCHAR *) L"system");/ E% q; j: g' u5 p
VariantInit(&requestVariant[1]); 5 R5 D/ M( T* [
requestVariant[1].vt = VT_BSTR;- b- j1 H1 X% B x3 Q3 T7 N
requestVariant[1].bstrVal = topicStr;2 A* E1 e( M5 g; v
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// Set the DISPPARAMS structure that holds the variant.' A# V; o7 Q9 z- h3 K
1 ?1 @5 ?$ W! S1 i dp2.rgvarg = requestVariant;1 ~4 B+ \) I% k; B* n( Q' L
dp2.cArgs = 2; 2 | D: L& T% V dp2.rgdispidNamedArgs = NULL; , ?- V* E4 N; J dp2.cNamedArgs = 0;) o L z- K9 u; ]1 k0 z' g2 K: k
* w) \' N: l) u T3 | var.vt = VT_EMPTY; 7 x: f. [. H" | x s# L! q) L/ H2 J : }3 w$ ?/ T6 I3 ^// Call IDispatch::Invoke()/ |+ W7 R+ Q( {9 q, k% l# m# ]3 o+ D
) S9 n _1 z5 I4 k) ~$ M; |4 Q hr = m_pDisp->Invoke( # |% a% X' C& U3 ^6 o, V requestID,! J( L7 g, I) i5 j% D, u
IID_NULL,+ D$ Q4 I" ~( b2 \( K
LOCALE_SYSTEM_DEFAULT,6 j# m6 _; |" ]5 U' u
DISPATCH_METHOD,2 u9 P( _" R; b9 y( R* X' p
&dp2,+ E( O: W; c. @ ^- I- m9 U
&var,! [4 \5 F0 @2 V5 g5 O; P
&ei, ' i% p4 `( y2 X: w ~! I &uiErr); & ^2 G% _- v* h- r; i. g/ H, R9 O' d* C$ B* s- y
SysFreeString(topicStr);8 J/ X; M9 _ S" i; Y6 H% E$ V* p6 z
SysFreeString(itemStr);: H, y8 C" k% m
请问该程序是获得extend里面的哪个值? 5 l2 V5 ] {/ ]7 d# ?+ S, f% `, n如果我希望获得extend程序里面的某个变量的数值,那个c++程序应该如何实现????