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:6 R4 y3 l. b6 B8 n8 _
Name = (WCHAR *) L"Poke"; ; N* I e, [" K2 @4 h! `7 I + k2 k) [6 Q: Z5 E2 { hr = m_pDisp->GetIDsOfNames ( 8 R! r* T/ E* y IID_NULL, // reserved" t+ y. x7 t) o0 K
&Name, // Array of names to get IDs for* a6 H: h' a5 L* W5 T5 [
1, // # of names in the array 0 P! T: p9 V; o" q LOCALE_SYSTEM_DEFAULT, // System locale 5 T6 p( J$ Z& Z. r) |, o& n &pokeID); // Array of IDs to fill on output3 W8 t O2 X+ z2 n9 _3 c5 g3 X
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if (hr) * t% r% w" q) [* r3 s' f* S9 S$ I { 7 v. v; s! h8 Q( D1 G( E7 C MessageBox ("Get Poke Unsuccessful");! d' O. y" f) u
return;- l! _2 t) d/ p, _
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/**************************传递数据给extend**************************************/; a9 L5 S* \$ x
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); - @* c$ b w. L7 g 4 j7 I( [( l$ m+ K7 \6 B
valueStr = SysAllocString((WCHAR *) L"1232"); 9 i2 G5 d( }$ n( H& d/ [ y- @. A VariantInit(&pokeVariant[0]); ) L5 p. {5 N/ u+ u( S! r1 }& [
pokeVariant[0].vt = VT_BSTR;8 y9 {5 d$ Y" S' ?; ?
pokeVariant[0].bstrVal = valueStr; 9 S; N: K' Y+ d" ~6 X0 d) {( J ^8 l* K8 j# }' p$ O# s itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ J: v+ \( @! Q8 ?
VariantInit(&pokeVariant[1]); ) L* V- G6 O) h# j/ I" K2 [ pokeVariant[1].vt = VT_BSTR; ! p9 |( s+ S9 \1 h# Z pokeVariant[1].bstrVal = itemStr;5 e: E- }. e8 V; v
- l) E; u( e, S" u; |2 I& |& |) o topicStr = SysAllocString((WCHAR *) L"system"); 9 Z7 y6 h8 ?4 v E# O& F) B VariantInit(&pokeVariant[2]); 3 ~" e2 ]! M9 ?& Q6 }. D; g o- w
pokeVariant[2].vt = VT_BSTR;0 c l: ]7 p( S+ h7 x- q
pokeVariant[2].bstrVal = topicStr;3 i# Y* v& O) f+ N
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// Set the DISPPARAMS structure that holds the variant.- {* c1 \1 p+ W
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dp.rgvarg = pokeVariant; 9 u2 P$ N6 V9 `+ s" b- f dp.cArgs = 3;4 Y+ |5 P# e0 r6 f" L( c
dp.rgdispidNamedArgs = NULL;( ^8 [$ D8 b& V l3 r, O6 U
dp.cNamedArgs = 0; $ D" w7 g0 f2 j6 x' K% l/ l0 o J3 l N4 }
// Call IDispatch::Invoke() 2 A' G* k1 e: A; ?1 t6 J1 l, N! L. j' ^0 A
hr = m_pDisp->Invoke( ) ]$ g7 z; c7 l6 d3 G5 m7 ^ pokeID,) E, V2 W0 e0 s, l7 g$ ]5 G
IID_NULL, $ O& P* j$ `) T7 x2 g4 N) x LOCALE_SYSTEM_DEFAULT, ; M! e$ h' i' T DISPATCH_METHOD, 7 g' M1 w X! T &dp, 7 F" ?7 m$ y) H NULL,3 c' E3 u" l3 l6 i( s
&ei, 9 ^+ e8 z# e& q* ` &uiErr); * \. c8 h) u7 F& F( c, H: r. h5 o& L , j4 y' r9 K* }! E SysFreeString(topicStr);6 z5 k w" \/ h3 U' @ k0 U& @
SysFreeString(itemStr);0 E1 s7 ~, X% m6 b, h9 a' L P
SysFreeString(valueStr);0 J6 f# W9 B: W$ U! Y* o
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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???! L" C- s3 G0 ~4 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????- e' E. [/ z6 q% w5 M0 Q8 ?
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2.这是request的程序 9 y. f$ N/ S* L/ C4 ] j/ ]% Y// Request a value from Extend 0 P+ w/ d F4 v// ' f z" f1 C" f// Initialize the variant that will hold the BSTR. Set the variant's% b' x; f7 \. i
// type flag to indicate the fact that this variant holds a BSTR. Place the+ c$ _6 W& y7 K$ h R( S6 `
// BSTR into the variant structure. 6 h+ F- h4 d* v( Y, \" o0 V" ?% i% f' k% w6 W" O5 \
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ) a/ ^# E% ^" R9 f 1 d+ H3 v1 h1 N% a7 G
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: M. L; [& w) N( E5 i, k
VariantInit(&requestVariant[0]); # K& g) f1 U r" P- B* Y requestVariant[0].vt = VT_BSTR; 1 s: v8 x, Q. L! i' d9 w" e requestVariant[0].bstrVal = itemStr;7 F- c5 a" }; Z+ m5 o3 v
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topicStr = SysAllocString((WCHAR *) L"system"); + P; u2 F3 M3 X" v4 e' W VariantInit(&requestVariant[1]); . n# d( I0 m$ | Y
requestVariant[1].vt = VT_BSTR;! X7 h. c5 k7 B4 G: g" h2 V
requestVariant[1].bstrVal = topicStr;" J4 E3 M/ g; s
0 }. M7 o% c! w& }// Set the DISPPARAMS structure that holds the variant. 2 J& f! ]$ u, N& x6 s$ o) _" G" P: J4 A0 V( Z% N
dp2.rgvarg = requestVariant; : O! \/ k5 a9 Z1 Y' Z* e8 h8 A1 J8 E dp2.cArgs = 2; $ [& @0 A5 c1 ~. [( ?5 p dp2.rgdispidNamedArgs = NULL;/ p \9 x8 A& t; L7 C* K$ ~+ b
dp2.cNamedArgs = 0;6 q7 H. }1 @. z8 |/ j5 b8 ^
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var.vt = VT_EMPTY;# t) _4 u' H7 R* j# T9 C
3 N W/ l2 k- S% Y! Y, I3 `// Call IDispatch::Invoke()4 q6 Y8 g( O9 J. g! L! r
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hr = m_pDisp->Invoke( " \' y! L+ S' m" Z requestID,. O; ^, ^$ ?! Y
IID_NULL,6 {+ R/ B& }8 P1 r
LOCALE_SYSTEM_DEFAULT, * \7 O+ I/ ]+ R9 ?3 z6 K5 P: z DISPATCH_METHOD, ' v, f* X% ?- t! C; j &dp2, - V" A8 ], q4 S( P &var, : I6 i* D* P' w2 P0 ^ &ei, ) E/ h" a h# L &uiErr);+ r1 ]( s: J- K
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SysFreeString(topicStr); 3 @$ }9 n m8 g" q! ?' ^6 ~ SysFreeString(itemStr);9 I: }3 E3 L# B& B, U# l, n# C
请问该程序是获得extend里面的哪个值?3 S: ?0 D/ J N7 `: |( t L( O
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????