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: : o! V% j1 P# h+ V8 KName = (WCHAR *) L"Poke"; $ e$ p% f o2 V; P- W! ?9 w/ u9 o& E3 h & g+ |" x! ]# p1 a; V+ N$ K
hr = m_pDisp->GetIDsOfNames ( U, X6 P7 O6 k t, n' ] IID_NULL, // reserved ' I0 m1 p: G/ P( d/ g8 b" x &Name, // Array of names to get IDs for9 J6 a6 [6 T1 {: C
1, // # of names in the array; r9 G3 n0 Z9 t
LOCALE_SYSTEM_DEFAULT, // System locale " u$ Y- m5 z0 p' ]7 b &pokeID); // Array of IDs to fill on output5 N2 D) g' m; D M: m
" B+ P5 F% \; `- {7 a8 {2 A if (hr). a8 l) r+ |/ Z# R9 u
{ + `, w! b) j3 k( z1 e9 } MessageBox ("Get Poke Unsuccessful"); - R7 P+ H0 e/ Y! s4 W; o- x return;8 a( v$ [7 K9 \, w
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3 |, }6 }3 q, \ i: a' J/**************************传递数据给extend**************************************/ * t+ P6 A+ U& x+ J$ [+ b$ x pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); : z! r" d8 R$ J: P" r% J" i # K! b* ^' \7 |5 K% y valueStr = SysAllocString((WCHAR *) L"1232"); : y+ q* ?2 H( v' Y- P) a VariantInit(&pokeVariant[0]); ( F4 y1 n3 z8 o: l* Y pokeVariant[0].vt = VT_BSTR; ; |) p$ Z7 [. T7 G! p5 ? pokeVariant[0].bstrVal = valueStr;" D) z+ @1 l6 z P: g# i+ a8 L
+ E& C1 G8 H4 Z/ ]( i9 ^3 h8 p itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 _: z: e! ]6 Z' H0 z
VariantInit(&pokeVariant[1]); ( S& g" T+ A+ {9 A9 y$ I pokeVariant[1].vt = VT_BSTR; ) W6 Q, H) M) L! r3 J9 M pokeVariant[1].bstrVal = itemStr;% Z9 l) q8 q$ W# F/ l
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topicStr = SysAllocString((WCHAR *) L"system");: @8 L5 B3 t% d- n6 e2 _4 ~
VariantInit(&pokeVariant[2]); ' F! G0 _/ f, C- \" k: @2 F
pokeVariant[2].vt = VT_BSTR; ( I. g# Q8 X h# P pokeVariant[2].bstrVal = topicStr;+ `) ~& W* a M
3 ]0 q+ ]& d7 a* W! i/ R// Set the DISPPARAMS structure that holds the variant.! D5 ^( y* |" ?0 b% m/ k
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dp.rgvarg = pokeVariant; 3 B4 Q( C$ a* l3 C% [- x dp.cArgs = 3;5 z( W: t! C/ W9 \, Y3 ]
dp.rgdispidNamedArgs = NULL; ( R- t v3 v$ @9 J" p4 n dp.cNamedArgs = 0; ) X6 ^4 k7 k& r: n# H" A9 X6 e& ]" W5 `2 d# X5 V$ I
// Call IDispatch::Invoke()0 M0 a. o# L. `; U& s
! n' G9 w" F3 ? hr = m_pDisp->Invoke(# R& I. R6 _( x s
pokeID, / M6 l0 @ d# c( C/ r, S0 K IID_NULL,9 N/ p4 e, w; y! ^5 ]* C
LOCALE_SYSTEM_DEFAULT,1 N" _/ q; i! z2 [) P3 R8 o* Y
DISPATCH_METHOD, 9 G' s+ H, j" G% }, s* b1 B! P &dp,, r% g% T( L+ Y) j" a3 H
NULL,7 E6 T; l" X j+ H7 b4 D" N; _# ?
&ei,& U4 G8 b9 ]' Q2 l; V
&uiErr); # P5 O6 g3 P8 _( O7 ~$ \9 w- t. o' G6 g. l. y; `, v) ?) l
SysFreeString(topicStr); $ D: H. ]% ^( V: L3 V SysFreeString(itemStr);6 k! a2 e( {; ]4 H# f, {3 X& U4 u; y
SysFreeString(valueStr);3 ], t6 b0 k7 `: j
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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??? : s7 k& U ?( [; T% b4 A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???? 6 w5 a3 p* A$ |" R& L6 k7 o6 Q: h6 l' H" q$ Q- A. U
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2.这是request的程序 ' O. N2 A2 ?5 m7 }6 A// Request a value from Extend 7 H, ^/ f% X. A! r// a" Q2 \" x# _# h6 Q// Initialize the variant that will hold the BSTR. Set the variant's 6 W! T# v0 @; U# c) `; ~, r& e// type flag to indicate the fact that this variant holds a BSTR. Place the 6 q/ d- n, R1 i& ?# \1 X// BSTR into the variant structure.3 D% l2 M7 X1 i' X/ T$ m* M% a2 s; l
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);2 L0 g5 C8 t+ _7 [
0 P; a0 c. D& n5 }: t1 S; V itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - \9 U: R; {4 i' U VariantInit(&requestVariant[0]); 9 `1 C" j4 o' \9 x; a& Y) |- \+ @0 h
requestVariant[0].vt = VT_BSTR; 2 J8 R7 X! v1 i. i0 }0 J: J2 Y requestVariant[0].bstrVal = itemStr;& g8 g* H; m8 U% F) K1 R8 w( _
3 t! Z8 F' T: Q( T$ \; z. Z+ V topicStr = SysAllocString((WCHAR *) L"system");& k" O. E, q6 X+ }: Z# ~: q1 E$ J
VariantInit(&requestVariant[1]); / r* l: O9 ^( h( I; z; |
requestVariant[1].vt = VT_BSTR;: ~1 L7 _+ \& X- I* y
requestVariant[1].bstrVal = topicStr;% {: D4 k9 @0 O5 `1 R' Y
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// Set the DISPPARAMS structure that holds the variant. ! l5 X# T4 b/ x9 l0 P0 ~8 I" S3 [& M! E3 i; S A7 v2 e3 I
dp2.rgvarg = requestVariant;. y9 Q# T" a2 G. g$ D0 x% |& W; M9 r
dp2.cArgs = 2; 5 D# l0 c2 |1 y% q. I5 O dp2.rgdispidNamedArgs = NULL;/ Y ^6 P3 u1 ? h
dp2.cNamedArgs = 0;% L; ]6 [* G% V$ _
3 Z5 l+ E0 \: ]8 ]8 m; ^
var.vt = VT_EMPTY; \+ z. B! Z& s ^: _% a; ]3 M# H! u 1 q4 @/ N4 t: k% A- L# [, q9 G4 {// Call IDispatch::Invoke()9 s) O/ q9 W9 v& I% K
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hr = m_pDisp->Invoke( ; h, y: }6 k% L% Z; T( i requestID,& w, G$ J2 Z; \
IID_NULL, ; g+ R+ L/ G$ f% _ LOCALE_SYSTEM_DEFAULT, ' o5 E8 {2 `1 d. b' P# e7 _5 v5 C# g DISPATCH_METHOD, + l( w2 h- F$ }& F& Y0 k) b- N8 [% Q &dp2,4 [1 {) a; x5 c! C/ B3 C2 p) J4 |, p% `
&var,) K; k8 B2 ?! u6 N# n* m) h
&ei,/ `$ U$ [- m/ S3 f; H
&uiErr); " |1 ~, y9 s: D# O- F. J1 x 0 [& u5 X9 B0 R: n9 ~ SysFreeString(topicStr);5 n7 ?; |: g! n; i% F; M
SysFreeString(itemStr);3 ]7 P4 C5 a+ `( g' o( ?# }) X
请问该程序是获得extend里面的哪个值?6 Q' B( x1 Q7 T6 @3 m: S6 {7 `8 e
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????