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:2 G# [" {1 w" ^" [+ p1 r& O
Name = (WCHAR *) L"Poke";; l( \. r. C+ H4 y6 b; g4 S9 d
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hr = m_pDisp->GetIDsOfNames (4 `1 X* ` @# G- [
IID_NULL, // reserved 7 E1 k6 s/ B" S3 h G% Q &Name, // Array of names to get IDs for' W; |7 P+ H3 t G$ I
1, // # of names in the array # p* O1 r2 {# `5 ` LOCALE_SYSTEM_DEFAULT, // System locale $ D' N) a2 L' ^, ~7 _. S6 P- a: f &pokeID); // Array of IDs to fill on output % U5 [$ G# j7 `4 f5 } 2 [1 w0 O& s7 f& ~' e8 P if (hr)2 X+ t& P3 y9 R: Z* K+ J
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MessageBox ("Get Poke Unsuccessful"); - Z8 y& }! t( z; y. O" G, r return; j* Q: g# k" a } 7 v8 c( G) q [. n" S0 H% @; f& U6 f8 w, |
/**************************传递数据给extend**************************************/! S0 a+ t5 R1 i3 q8 F) V0 S
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);5 H' j1 I0 V# ~) P
9 u) X3 ?/ `0 \* a valueStr = SysAllocString((WCHAR *) L"1232"); & q. ]& O7 _4 i7 J$ c( ?* | VariantInit(&pokeVariant[0]); 9 I* \ @9 X) c$ V4 G pokeVariant[0].vt = VT_BSTR; / R/ z# l9 b- B9 w- b( c% o pokeVariant[0].bstrVal = valueStr; & Y/ A$ c+ o: X8 B ) h+ L' y2 T% c7 V6 ^& p itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");8 R: O5 \9 ~6 x. y0 G
VariantInit(&pokeVariant[1]); ; Y' g2 D3 s, _' |8 d5 E pokeVariant[1].vt = VT_BSTR; & ^( R/ _* U7 r3 F2 ~/ T8 p pokeVariant[1].bstrVal = itemStr; ) `! h) z7 c1 ?* b- Y* b # I/ U3 ?! D7 e! d topicStr = SysAllocString((WCHAR *) L"system"); 7 @) R! }# N* l/ i" Q- ? VariantInit(&pokeVariant[2]); 9 c& w& @1 S# l4 u8 [" L pokeVariant[2].vt = VT_BSTR;+ E2 M5 _' _2 D+ m! T4 _$ _
pokeVariant[2].bstrVal = topicStr; * `' b& T/ z2 C0 Z+ t3 M) u2 M, y6 A5 ~! r$ J9 I# z
// Set the DISPPARAMS structure that holds the variant. , |' _& F' b& Q- v* C; L6 C 0 c5 _" O/ k+ K& e- b) V+ v dp.rgvarg = pokeVariant;% l9 B/ y# ? ?/ R7 V
dp.cArgs = 3; 0 ~, P/ S1 l4 y. ~6 o' P dp.rgdispidNamedArgs = NULL;0 E b$ h3 |0 X: Q5 `
dp.cNamedArgs = 0; - v$ p. h0 i! Q5 ]1 E. q 8 p9 H2 l, I8 V// Call IDispatch::Invoke() 9 u+ h1 n. ]9 q# s4 F7 p" O$ W1 C9 j2 ~& l; q: X1 ?
hr = m_pDisp->Invoke( 2 H, e4 q; M8 L* C+ ?! Q8 M pokeID,. S3 s; L) u& h8 j* W3 E
IID_NULL,; a) O2 U" M( S; q- P0 O3 f
LOCALE_SYSTEM_DEFAULT, " B9 R7 E! N7 Q6 t2 A DISPATCH_METHOD, ' O: \. L! e2 q/ b1 k! j3 }+ i &dp, b+ f9 Z$ L$ W9 W/ \) } NULL, 6 R2 R1 D8 k; ]5 Z; o, |9 ` &ei,0 K% \% B2 @0 L0 [ I
&uiErr); : x) I; G/ [! F( d: l% o6 a8 Y5 t0 j8 m3 h
SysFreeString(topicStr);9 y( D7 h `/ N G( j* V/ k3 z
SysFreeString(itemStr);8 O/ P9 Z. Q0 t" A
SysFreeString(valueStr);8 [, X) a) D$ N: a8 ^6 o7 Y& q
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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??? 1 \7 \* i: g- Q* O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????5 L- K( z" N9 h" l# Y2 f2 v# g+ a. n
0 l/ b, D% D1 R! q" p, n# } : R$ h N t& _2.这是request的程序+ [1 E' T1 _2 o/ m& `
// Request a value from Extend5 |( X5 _5 i( ]* O) N
// ; Y. x* U8 t9 g! U// Initialize the variant that will hold the BSTR. Set the variant's - J. D, Y4 f$ Q8 i) C1 z; [// type flag to indicate the fact that this variant holds a BSTR. Place the: p: M3 h+ U N* Q7 U
// BSTR into the variant structure.2 {& J; k( ?. U9 Z5 q
( j3 N6 C# ?, `- f. U# ~ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); % q* M3 y: R6 Y- o; G 2 }2 a' w2 c5 y, W+ v8 H" L itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # [: ?( J2 y1 |1 @/ b VariantInit(&requestVariant[0]); ) B% e' K0 v) w- p4 O requestVariant[0].vt = VT_BSTR; I6 f* _2 l7 z. t8 d8 _1 T% O
requestVariant[0].bstrVal = itemStr; , T) l, W4 P, Z$ Q9 b& B/ ~6 Y; M$ a+ |1 l N' v# V% Q" _
topicStr = SysAllocString((WCHAR *) L"system");. `4 X# ?. \% C
VariantInit(&requestVariant[1]); ' ^2 U1 ^5 Y- t! X* b, q* G
requestVariant[1].vt = VT_BSTR; & w1 D4 c. M' n7 U! e. Y& T4 i. g requestVariant[1].bstrVal = topicStr;$ Q& w/ @! j" J( S+ ^% i
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// Set the DISPPARAMS structure that holds the variant.6 \& s4 F# g3 x% J4 Z/ i
$ G* R0 l7 B1 l6 D6 C" {
dp2.rgvarg = requestVariant; . Z2 N2 j8 ?6 U( j9 G5 m% _ dp2.cArgs = 2; . F0 U# X. J# Z2 D$ y5 J dp2.rgdispidNamedArgs = NULL;) w& k+ P4 w# L
dp2.cNamedArgs = 0;( ]) i$ T: Z0 d" [5 |
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var.vt = VT_EMPTY; 8 R- J0 M9 _2 z" n3 o1 [/ v6 y* k. [
// Call IDispatch::Invoke()" X3 d0 l' J; q+ W( j, p2 }
' n& j; o9 f. E3 \ hr = m_pDisp->Invoke( ( a8 x9 L. @8 d3 t/ a/ g% l% A requestID,, Z8 X9 e y& t- D: h$ t* y
IID_NULL,- C9 p; R. D3 Y; x* X* f
LOCALE_SYSTEM_DEFAULT, : y2 V# u! ?; ^3 @ DISPATCH_METHOD, # Z9 e% e* C$ _% A" r5 n &dp2,' K/ }, t# k+ V1 l) q- M2 U' Q. }
&var, 6 u- x) @* ^" H &ei, % E8 f+ O q9 ?1 i &uiErr);( Y; c; R+ U z2 h3 y: M
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SysFreeString(topicStr); & A: c, k9 S0 w8 j9 K SysFreeString(itemStr);% W7 X1 U" y1 D& B( w; A. U7 r! Q. ?1 h
请问该程序是获得extend里面的哪个值?7 I2 b- ]% F$ a* u* Z7 i
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????