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:- J$ v- R1 ~! I" c4 B+ n
Name = (WCHAR *) L"Poke"; 8 ?5 ^9 h* s2 H2 K4 W! m ! @( O5 w% ]: m3 r* l& W$ Q
hr = m_pDisp->GetIDsOfNames (+ E! n8 O# s2 v7 o# P- J* h
IID_NULL, // reserved 6 f' `2 B) [! o/ O+ O/ d. G &Name, // Array of names to get IDs for/ H- ~% ?( f6 C+ y/ |/ j
1, // # of names in the array# r* s) ~" X0 s8 X
LOCALE_SYSTEM_DEFAULT, // System locale % U. y. b C0 K &pokeID); // Array of IDs to fill on output8 x+ Q/ I; E9 W4 n
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if (hr)+ f7 @, p B: P* S7 I9 }
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MessageBox ("Get Poke Unsuccessful"); r) i: Y: J/ L5 h9 {5 l! z9 d
return; , s6 q5 x9 f1 ]+ Y# j" x" ] } 3 Q* J: Y5 B k% }$ K7 K1 l- E I* |6 e: O$ v$ t7 O
/**************************传递数据给extend**************************************/ # \* Z; j* R7 d: ^% t pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);: A' Z O8 f* r9 T
/ h; `0 a# G4 k$ I1 z valueStr = SysAllocString((WCHAR *) L"1232");) D* e% L0 H( j
VariantInit(&pokeVariant[0]); ! Y- s+ [+ Y/ M8 `8 W5 Z
pokeVariant[0].vt = VT_BSTR; # e* I1 _3 C) ^9 a; r6 W pokeVariant[0].bstrVal = valueStr; 9 p S3 ~+ i8 r M' p" N# M. I) J2 j, K7 s- O6 D8 P
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; y+ ]4 d2 m: a, ?8 |$ _ t
VariantInit(&pokeVariant[1]); + R3 P+ W& A2 X3 o pokeVariant[1].vt = VT_BSTR; ) J4 \6 g% ?3 k/ P/ |, V( d! p- m pokeVariant[1].bstrVal = itemStr; 5 k4 q; _/ |' d1 S% N9 u: ?; t _. b" Q
topicStr = SysAllocString((WCHAR *) L"system");% T: o" H/ X3 |( L
VariantInit(&pokeVariant[2]); # J- s J) f5 S" e pokeVariant[2].vt = VT_BSTR; 8 H. p6 S2 H+ k& l" o1 E+ @' ?$ b pokeVariant[2].bstrVal = topicStr;; ~4 ?( b O( Y" _# r- [: {
) y: @" H4 N% i// Set the DISPPARAMS structure that holds the variant." |6 x. { Y& [* m; Q. `7 D9 J( Y
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dp.rgvarg = pokeVariant;/ T) y3 S5 J0 g3 J/ N- @2 y
dp.cArgs = 3; 4 E8 O: `; S8 F2 q+ Z dp.rgdispidNamedArgs = NULL;6 L# L2 I6 k8 |% A4 G$ _* k
dp.cNamedArgs = 0;5 A+ n1 k" N$ j) ]/ q* A
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// Call IDispatch::Invoke()3 F2 y8 ]5 t, g; p0 q: p
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hr = m_pDisp->Invoke( # d. p, |# @: h6 K0 | pokeID, 8 Y) w0 ~* i8 M2 X IID_NULL,2 O% P4 r g3 Z1 a7 O
LOCALE_SYSTEM_DEFAULT, / }8 U. @3 s* r8 D+ ]9 @- S" | DISPATCH_METHOD,) J( d1 R8 V8 P" s. k
&dp,$ w- R$ l# B1 v+ P! v3 T ?$ d
NULL, 5 V! ?8 T A7 ~+ d6 q+ F &ei," n( M! `# W. G* q* {
&uiErr);" `% Y( q' g& k+ ^+ r9 j" ~; R
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SysFreeString(topicStr); 6 b6 Z* {: E! E" I- Q- r SysFreeString(itemStr);+ e1 ^5 C2 S+ u w
SysFreeString(valueStr); - b' i% b! a9 H# V* Y& | 9 o, a4 I: ~+ `" P7 @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??? : d2 Y. y& h7 X6 ]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????+ G, K2 G \1 u0 j+ \" S
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2.这是request的程序 ( \ ~1 t+ G4 T$ Q; Z& p2 d! t4 a// Request a value from Extend . @9 ?. G8 h, V//5 [, `9 Q% z9 S# L9 p9 w3 ]
// Initialize the variant that will hold the BSTR. Set the variant's . w, U% q8 `( w. F* j// type flag to indicate the fact that this variant holds a BSTR. Place the8 U% p! ]% d8 s0 F+ [' T7 k
// BSTR into the variant structure.; g3 I+ x9 r: T) E' z C
- c: Y4 H7 P7 b( F% P1 n requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); # o* W% l" a Z6 r6 s. Y / l& ?: m+ c8 _) d( g8 K5 S8 t1 s itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' r1 [+ y& }( p- W/ J: G
VariantInit(&requestVariant[0]); / q7 Q- E7 P7 l+ D% C requestVariant[0].vt = VT_BSTR; 1 X$ K8 }9 g: B) t) i requestVariant[0].bstrVal = itemStr; 2 c! O* a1 |1 ~7 P4 J2 X / F& p# ?% L+ B topicStr = SysAllocString((WCHAR *) L"system"); 6 t" b1 K7 u# u7 w! A VariantInit(&requestVariant[1]); : `8 G3 \* l, R* x- F! X# Z \ requestVariant[1].vt = VT_BSTR; 1 G/ e5 a1 A b+ g' I5 c1 B* {6 o requestVariant[1].bstrVal = topicStr;* q& }9 G/ z+ s! ^
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// Set the DISPPARAMS structure that holds the variant.4 @8 r) ]+ o" G; |! K3 d
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dp2.rgvarg = requestVariant; . Z, ]- E* D5 d9 k$ u& U/ h dp2.cArgs = 2; X6 r7 @' n: p* s- o3 i3 X
dp2.rgdispidNamedArgs = NULL;. G3 i! R8 ?) n$ U
dp2.cNamedArgs = 0; 5 L( d' G9 x& Q- c. A' X $ V" O& A4 U8 k2 z: ^. ~$ u var.vt = VT_EMPTY;, g: U, k+ o. y( e |
5 w1 ~( w6 P! G" C1 {5 }, p0 V// Call IDispatch::Invoke()$ \, Q/ g1 t7 k& X( k
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hr = m_pDisp->Invoke( 3 T1 c, T9 y. F% O. q5 s3 j" r6 w requestID, 2 C8 j, r5 D( D0 @. V( ? IID_NULL, " B( O+ V9 H8 J, A LOCALE_SYSTEM_DEFAULT,. p9 v$ r& W9 n& L! f
DISPATCH_METHOD,( V$ C& _! v4 r1 Z6 ?
&dp2,* |, w* T' I0 [5 }$ H+ b* W. w2 h
&var, # A# @* P: a3 j &ei, # p, ~4 V* U* m7 X# q5 X; Z& f+ a) N' r &uiErr);( J( ~6 Y# b! r$ w! a
. \: s. ^9 }' ?# @, s SysFreeString(topicStr); ! v! h. E; l }& a' R* y SysFreeString(itemStr); + m/ v. ~+ u# M- y' R9 x# @请问该程序是获得extend里面的哪个值?- E7 _6 n( Y: w/ f0 _7 F) S
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????