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 `: C% _- h0 g8 ^5 l4 Z, [
Name = (WCHAR *) L"Poke"; # p5 j& U; T3 M6 E1 s d " I- v* p' j! H/ Q* H
hr = m_pDisp->GetIDsOfNames (: `/ y& v: Q, r( C* S4 |! g
IID_NULL, // reserved1 b2 f. ^# t$ ^6 v
&Name, // Array of names to get IDs for; k1 x! u, q% l" F1 y2 P! D ]
1, // # of names in the array$ S; i' W. M; @$ e+ }! |0 C: w
LOCALE_SYSTEM_DEFAULT, // System locale2 x3 h+ g' i) L) u2 b
&pokeID); // Array of IDs to fill on output 9 l# Y2 \1 Q) h* ~: Q $ K; J+ T" e2 V
if (hr) ! ]$ `6 {: {9 Y) z5 } { : w: z2 f+ T/ a7 v MessageBox ("Get Poke Unsuccessful"); 7 Q$ u0 D/ d# N3 F6 i8 |6 J2 u return; 6 u7 R/ ^7 k! Y }/ H) k1 J5 M" ~: E! Q- E; F1 a3 k* G- k
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/**************************传递数据给extend**************************************/' f: s L8 O" c3 J; G( ~
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);% H, {0 {; Z8 ^4 Y
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valueStr = SysAllocString((WCHAR *) L"1232"); ! n; ]' R8 V' }( a$ N VariantInit(&pokeVariant[0]); - C3 U2 o0 P* R, Y1 | | pokeVariant[0].vt = VT_BSTR;# H4 v0 H$ G+ X
pokeVariant[0].bstrVal = valueStr;' A+ l7 g+ r( c& Z: s, A
. s \4 s6 U' F% l0 ^8 k itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 m2 R* I$ w$ w4 }* \5 ?. S/ d/ } VariantInit(&pokeVariant[1]); ) M# |) |* ^% L6 k% l5 ` pokeVariant[1].vt = VT_BSTR; & }2 k5 {! d$ s pokeVariant[1].bstrVal = itemStr;- x. F5 H+ Z& G$ ^+ l0 [9 `
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topicStr = SysAllocString((WCHAR *) L"system");4 p9 @& B8 @- {- U' f, j) ~; Q
VariantInit(&pokeVariant[2]); . ~7 R3 X5 E1 w pokeVariant[2].vt = VT_BSTR; 5 H: o% @% j. `/ `" _0 x pokeVariant[2].bstrVal = topicStr; ! F& C- T1 T( x+ `" N L$ ^% h. D8 Z u# c) b
// Set the DISPPARAMS structure that holds the variant.7 Y* E& D, t/ Y; a' s* f' o
. b0 ?4 b; k' g+ ~9 A6 C dp.rgvarg = pokeVariant;/ u4 l' _( @$ @6 ~$ d
dp.cArgs = 3;& @) d, H# b! X" R
dp.rgdispidNamedArgs = NULL;- R, c! l+ y( z1 c( t
dp.cNamedArgs = 0; 1 H6 N& Z, [4 G% K2 J ! \! h _( e' ]* t// Call IDispatch::Invoke()) k( M) Z6 K. I0 l
0 m' F, F# |7 `) [. x4 ^4 ]2 a hr = m_pDisp->Invoke( ( o g8 d7 Y J3 C# d; | pokeID,1 _+ b$ w* k. n# S
IID_NULL, ( g" `3 ?& n( n LOCALE_SYSTEM_DEFAULT,( |* N, ]& Y4 k- q
DISPATCH_METHOD, 9 Q8 L. K- f' b& j: S$ Y8 B &dp, " I1 k/ G( B1 X/ ?8 w, I NULL, r1 d- U5 Z/ `: @. { Z% ?( S
&ei, " H ?$ R, S6 v/ T4 l &uiErr); ) V9 ` _. G1 y& B# ~- Y; z9 _& v6 Z! g, N/ w* I T, l5 A" z& S
SysFreeString(topicStr); 0 }1 a: r) b4 p( O- l( F SysFreeString(itemStr);2 K' W1 y" t, G: Q. n* K
SysFreeString(valueStr);6 G' E+ S5 y3 @- H' i3 j* ?+ U
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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??? & ^* V0 C4 k% T! N% 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????' h6 n s- n8 M9 L
* m; `# M0 l7 d: b 6 j/ y( P2 H2 \) T t6 y5 m2.这是request的程序7 m" X8 A% Y" K# L. }6 g( g2 W
// Request a value from Extend1 }( t+ q, O7 E9 h+ ?5 M
// 9 O. ^1 h4 [5 c' x3 t// Initialize the variant that will hold the BSTR. Set the variant's ' v" ^8 b$ r% F# _1 a// type flag to indicate the fact that this variant holds a BSTR. Place the, D; B( a, _5 |% O: \" ^
// BSTR into the variant structure. _. ]9 C! Z/ b1 `% x+ U
2 R; k) w2 x7 x requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);$ l+ j# i9 M4 G9 [# Y5 V
! N. T# z& o. z& X3 ?: V4 z itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");8 U: p' ~; a+ y
VariantInit(&requestVariant[0]); 2 _" \, k2 I' ]0 w requestVariant[0].vt = VT_BSTR; % O& f; G8 H9 k* ?! c+ y requestVariant[0].bstrVal = itemStr;# q2 o: a1 l6 ~4 `
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topicStr = SysAllocString((WCHAR *) L"system"); - ?/ a, c6 h# g1 B5 H$ K/ S, w9 k7 j; s/ A VariantInit(&requestVariant[1]); . T* a }# ^2 d- C# Q5 Q requestVariant[1].vt = VT_BSTR; 8 k: g: T+ i3 w! J1 }$ i2 L requestVariant[1].bstrVal = topicStr; ; X3 X# c& O0 Z# U( H1 p: Y, O* n8 @' @6 m6 S$ t+ u5 y
// Set the DISPPARAMS structure that holds the variant. ( K% k+ @% g! l. j" w 5 k7 J7 ~. p& i) a dp2.rgvarg = requestVariant;) w7 M0 \: P$ i( I& u: O
dp2.cArgs = 2; 0 q7 F1 l8 b7 {) K dp2.rgdispidNamedArgs = NULL; 8 d( R# ?+ D/ d; ]- A dp2.cNamedArgs = 0; 5 T' Y7 O! f: n, `1 V) b' f. {3 h$ c2 Y# [- x6 ^5 A
var.vt = VT_EMPTY;, t5 g2 A. P( N" S
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// Call IDispatch::Invoke()8 R4 n/ d4 r+ o; S* w% D
+ T; P0 h8 u* O& U hr = m_pDisp->Invoke( , y3 p4 E3 h( O" N; D% N requestID, ; R# [3 V+ `1 Z% A' }9 [. q" b IID_NULL,+ _4 O9 a4 B- W( ^. B" z6 ]
LOCALE_SYSTEM_DEFAULT,+ Q' I( o8 z9 Y- Q
DISPATCH_METHOD, c" v1 S/ c' t) A" r
&dp2,: n. y' h! W2 b3 a! U
&var,- t' ]3 }! |4 t! y; b# k; L' R
&ei,5 n2 j% E/ ~" V2 I
&uiErr); 9 z9 D5 e- I" V3 |2 z 3 O7 ?" J& ~+ V8 Q3 W9 H3 ^# h SysFreeString(topicStr);5 r. u, |9 k" M; c
SysFreeString(itemStr);( x8 V2 K7 n( c
请问该程序是获得extend里面的哪个值? ' `+ F& _# X: E$ Q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????