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:* J4 w3 k! Y3 J/ X" l! z
Name = (WCHAR *) L"Poke";6 x% p; {0 G$ _$ C2 x
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hr = m_pDisp->GetIDsOfNames ( g6 v% P" t% d4 j3 T IID_NULL, // reserved ) V! d1 I, x$ u) z# |! A) j& k &Name, // Array of names to get IDs for+ V" T* ~+ {/ J% m4 L
1, // # of names in the array 2 Y6 r$ m0 e' o5 p4 R LOCALE_SYSTEM_DEFAULT, // System locale 6 L9 M# ?$ K' y. a &pokeID); // Array of IDs to fill on output + h2 X0 a% n4 k 3 R! D+ r7 S8 l7 {" w
if (hr)7 J9 U1 t; |& M1 N3 Q$ N1 B
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MessageBox ("Get Poke Unsuccessful");# j- i6 o5 W% a2 [' g6 v
return; 2 \) f, c2 m0 B6 |6 s }9 V$ H. o3 e! v4 T; I' {! i* M" s
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/**************************传递数据给extend**************************************/ 3 } F8 O& @1 z" a, |$ C pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);9 Q1 Z+ w0 T- ?* @ B* a- B
+ U$ V: [: Z5 f+ s# } valueStr = SysAllocString((WCHAR *) L"1232"); 8 [$ L5 ?. Q& @( L VariantInit(&pokeVariant[0]); - y( S% V7 ~- ^1 h: h ? pokeVariant[0].vt = VT_BSTR; & V' Q, D. o; @. d$ B# T$ s7 g2 s pokeVariant[0].bstrVal = valueStr; 4 Z2 K/ g: ], t3 }' W! ?/ H* ]* X; U5 I, l3 L. W
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! ^; I- e6 _& O& m2 P( b
VariantInit(&pokeVariant[1]); ( d4 F3 ?3 e) F( l pokeVariant[1].vt = VT_BSTR;7 @9 C# N# a: |; r& E0 F+ e) m& U. E
pokeVariant[1].bstrVal = itemStr;* e+ ] s+ X- p8 C% ~% X& i6 b
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topicStr = SysAllocString((WCHAR *) L"system");) N/ [ W$ X( E9 v0 Q% I. ?
VariantInit(&pokeVariant[2]); , C n ~! o' y4 X
pokeVariant[2].vt = VT_BSTR; 2 K/ R+ n1 L g3 c K pokeVariant[2].bstrVal = topicStr;: g. r' L$ \8 e/ @1 J/ i
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// Set the DISPPARAMS structure that holds the variant.& x4 f* V, i8 c9 `& x( c
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dp.rgvarg = pokeVariant; : A+ w; g& X# c dp.cArgs = 3;- j" i$ w5 G7 g7 k
dp.rgdispidNamedArgs = NULL;" u) B, G" G# u: |8 R: Y2 Q6 @
dp.cNamedArgs = 0; $ S* j R! x! ]: X3 _3 z8 f0 i5 g
// Call IDispatch::Invoke() 3 k. o" j! o4 F6 Y" a! t/ i3 w% B6 r- u
hr = m_pDisp->Invoke( + k7 P! {! I8 Y/ `1 ? pokeID,0 ^8 u2 N0 o" J0 X) S+ q+ E7 ^- G
IID_NULL,. ?5 s' k% ^: |6 } R
LOCALE_SYSTEM_DEFAULT,$ U* ?9 e. u& d% X' P( h; n% Z
DISPATCH_METHOD, : Q5 I1 }( c8 U# A &dp,. u' w8 q' X8 X
NULL,8 V6 Y' d: t+ [. j0 o( W
&ei, * V3 }: }! J1 k) e &uiErr); : ~. ?. g/ z' _! p ) d3 C6 |0 K) s6 R: v+ T: y SysFreeString(topicStr);6 ]& l: ^& N& c- n) \# w$ h6 r
SysFreeString(itemStr); + ^1 {! b1 m, L$ T8 G% C2 K% j SysFreeString(valueStr); - l) ]; c9 P& {' I( A, T! Y. B6 N, J; J6 C0 v
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???7 D$ C! M6 V E% w* V7 Z6 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????& {2 M; u+ s% C" }2 ]
) p0 I) c/ b% y5 r 1 E! p+ {. e. T1 q4 p& i9 m2.这是request的程序 + a) _$ g/ p- o9 O1 K// Request a value from Extend& j* C$ l6 T/ f
// 4 r6 Y+ Y+ O. q* P7 @; Q// Initialize the variant that will hold the BSTR. Set the variant's: {! _' N* z2 @ b* X; x0 E; s
// type flag to indicate the fact that this variant holds a BSTR. Place the * [9 m2 O, {7 G- Z( M// BSTR into the variant structure.# w, c* K3 E0 L
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);" [: {0 G/ r$ ]5 \# d) N
" I! p3 K, W5 a8 S7 ~5 g2 z$ ] itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- f% z& M" a+ X. J9 q5 f A
VariantInit(&requestVariant[0]); ! ?; N9 A+ n3 X- ^' t8 ` requestVariant[0].vt = VT_BSTR; : C; q/ @7 i! F9 `) o0 O q( D requestVariant[0].bstrVal = itemStr;& R/ J; n2 r* p1 R" h3 p
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topicStr = SysAllocString((WCHAR *) L"system");" x! S' |9 O1 I$ U. ]
VariantInit(&requestVariant[1]); 6 v# B( a! W* D, w+ L requestVariant[1].vt = VT_BSTR; , j9 K( ` f8 j requestVariant[1].bstrVal = topicStr; % }; w& z$ l1 ^1 j7 U' P* H) B+ i! _ G+ ]& }- O3 l# R
// Set the DISPPARAMS structure that holds the variant. ) c( X7 I) z9 c5 ^4 U/ M + V; s% ]5 `$ { dp2.rgvarg = requestVariant; ( A4 c$ H/ z) p d dp2.cArgs = 2; + e" C; m% L+ B$ @; q) ]; ^ dp2.rgdispidNamedArgs = NULL; ; w' b k# O4 l6 S dp2.cNamedArgs = 0; ' R' ^) X. x) v2 ^4 A/ ]# O8 X# z; j2 j$ {0 m
var.vt = VT_EMPTY; ' Y) O) F( C4 H$ H3 V 7 L: _* E' _ s, O// Call IDispatch::Invoke()1 x' o$ A6 A3 \5 I3 e; ]( o2 f
. K0 F) x5 |( e+ n/ d8 O: y Q hr = m_pDisp->Invoke(4 ~- B( J8 V: E9 U; [: h
requestID, + Z6 ~; A+ t! k. \: q# }9 B IID_NULL,( [: c: ^* B! Y% a8 T. W
LOCALE_SYSTEM_DEFAULT, . @# W; l- k' b5 ]3 }3 r DISPATCH_METHOD, ( c$ D, M. h+ n$ m &dp2, + F) \& I4 x, j8 E3 t+ R$ P &var,) m h% `. i9 U' x
&ei, / t/ C) K/ w# |0 S &uiErr);) C* S* K% b4 A0 v, ~! l- h
0 h- @1 M6 W7 Z+ g9 w" X SysFreeString(topicStr); 1 w6 @, a' G( P' L0 m1 C2 K! Z SysFreeString(itemStr);! }& j7 }' B1 {
请问该程序是获得extend里面的哪个值?7 a8 J- T. ~, M# r& P1 {
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????