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:- E9 n3 b. C4 ?% u3 _
Name = (WCHAR *) L"Poke"; + u8 F6 Y d& V. C, R2 w8 Y - C# K$ h6 D7 c+ X hr = m_pDisp->GetIDsOfNames (9 J) v# c: F, @5 X& U
IID_NULL, // reserved 0 z, a* |! P: x# @% h4 F &Name, // Array of names to get IDs for 4 F9 g, B' m+ S" b; s6 Z 1, // # of names in the array* g$ X& ~ M& y4 k
LOCALE_SYSTEM_DEFAULT, // System locale / W( G" w& i1 h4 e( D# L8 } &pokeID); // Array of IDs to fill on output ' q* d+ @' n0 r5 e" ^" Z( l: T+ g( C ! a% G" A. l" k0 O9 s. } if (hr)- [5 r5 y7 w6 H8 i% |' k( [$ y
{ 9 m( H! M9 U8 s& }. P0 m1 H! V MessageBox ("Get Poke Unsuccessful"); - M4 v& J8 w) C5 M* P return;4 g' r6 @2 P% t& W0 h
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/**************************传递数据给extend**************************************/! O* ~. b# ^* w) [9 X$ ?
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);# W$ a9 z. A1 `( v8 |$ `" a
: j+ [% a) M) Z+ f' @: D valueStr = SysAllocString((WCHAR *) L"1232");" z$ p$ b+ N. Z0 `5 {
VariantInit(&pokeVariant[0]); . k( J) E. f9 B% `
pokeVariant[0].vt = VT_BSTR;, l* _% I: O3 }5 v& r
pokeVariant[0].bstrVal = valueStr;$ i0 c- R& L. h5 |5 X
6 o3 h; [7 f$ M o itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 4 c: n9 E0 t; a" ^, u& e VariantInit(&pokeVariant[1]); & K4 h8 U4 k$ j1 y pokeVariant[1].vt = VT_BSTR; - I- d. U4 ~# t; Z5 T- d pokeVariant[1].bstrVal = itemStr;, ~7 W- d) Q' S* T2 L7 ]8 \2 ?' G$ B
. Z% q0 @& B! C) ]/ h: j& u topicStr = SysAllocString((WCHAR *) L"system"); 2 d, Y+ s5 i3 ?# q; X0 S VariantInit(&pokeVariant[2]); ) K9 i1 s: r- E pokeVariant[2].vt = VT_BSTR;& i& n* c/ ^( z- ]
pokeVariant[2].bstrVal = topicStr; 6 F& Q& K) o- M' n, _4 N' @/ d/ N9 T# b' j; ~
// Set the DISPPARAMS structure that holds the variant.3 T2 |8 T; x& ^( ~! g) s0 M, D! i' T
3 r4 C5 y! ~" `1 k# {
dp.rgvarg = pokeVariant;6 U/ a n7 D& F$ y
dp.cArgs = 3;1 F! @5 t* o& A
dp.rgdispidNamedArgs = NULL;4 ~$ s# Y: |/ |3 x3 ]% ^- _0 F
dp.cNamedArgs = 0; / `& a& L- @- m# h ; b! s9 L+ D3 e7 [' S// Call IDispatch::Invoke(): N" g4 k( b* W; l* j; c% w0 [9 c
0 e: N$ `- q6 r' M1 l& n hr = m_pDisp->Invoke( 3 I% k! U1 G4 a" r# a/ E; X, k. W$ N pokeID, . v% @& b, }+ H3 s' t IID_NULL,; x; Y, _" b$ \9 K/ r$ k" \' y
LOCALE_SYSTEM_DEFAULT,. D) ` `: g5 U+ f
DISPATCH_METHOD, # H5 P/ b0 l+ X3 S+ C1 j &dp, ; E0 n5 f% ?% W$ w NULL,: A3 A* ^0 Y& w
&ei,9 y/ q- N' u% v7 b. `9 e
&uiErr); 7 V% C% b+ ~' t o0 w& H8 C. ^7 T( ~
SysFreeString(topicStr);* n( J. q8 Y4 S* V) J
SysFreeString(itemStr);6 x" K% ~& Z3 K& Y+ i/ [
SysFreeString(valueStr); . o; }5 |$ s3 k% L; |+ i + A7 N' n' T4 }7 g1 r) R8 R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???; k/ h _( \& h2 D; B2 X
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????& ^+ j( I6 v# o5 ]0 \. {
}8 e& E/ @7 I" X6 \( L$ W) U # I! @" X$ N$ q2.这是request的程序 1 ] q v* J6 Y) B// Request a value from Extend , j" ]+ _/ V& k0 k//- E" r) p# H( n% w8 u. X7 K9 N
// Initialize the variant that will hold the BSTR. Set the variant's , U) z& I6 }. d. q+ m// type flag to indicate the fact that this variant holds a BSTR. Place the6 X( `) }& Z4 a
// BSTR into the variant structure. 2 o5 i9 ]6 M* h3 v/ m* D I- V& ? $ q0 A( J$ ~; n% J2 L8 {! Z requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);6 [% l+ \- p( N
* k1 n" k! b" E% u, w) L% ? itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: F% X1 X8 y$ ]3 M/ S, B, B
VariantInit(&requestVariant[0]); . @1 p# C0 w+ f* u! v: ^' h requestVariant[0].vt = VT_BSTR; ' U0 D( {8 n4 K! |' D0 S; x requestVariant[0].bstrVal = itemStr;, Z- i% j+ ~4 X
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topicStr = SysAllocString((WCHAR *) L"system");$ r& o! s7 d" B# H9 _ b- ~
VariantInit(&requestVariant[1]); ; d! }4 _& U7 e* f% T( T/ C requestVariant[1].vt = VT_BSTR;/ E( U$ d9 j5 @# f [
requestVariant[1].bstrVal = topicStr;' p7 ?$ F+ }1 k8 V( a* @' `- U, c
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// Set the DISPPARAMS structure that holds the variant. + ?5 a9 @3 s, H9 v1 P * Y+ |5 y/ j& @* R6 G! O% x" w dp2.rgvarg = requestVariant;& ]1 G# |: C; L8 E( _
dp2.cArgs = 2;, \1 _+ t8 `* j0 F7 n. M" `
dp2.rgdispidNamedArgs = NULL; A8 ~, w* N- F l3 S {, O
dp2.cNamedArgs = 0;, I2 ^& s/ M& q2 S8 F2 G. r
& a A* }. b% _# n$ j4 |6 K
var.vt = VT_EMPTY; 3 Y }# v" s% C2 V 9 c& [2 `4 M- ]! t! O7 Y// Call IDispatch::Invoke()6 `6 z* D0 V( o8 W3 c: y4 F
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hr = m_pDisp->Invoke( 6 W, w( `/ m4 G3 C requestID, : @, {2 @, Z) r IID_NULL, ! b0 t( }% X: P+ N8 u. O) t LOCALE_SYSTEM_DEFAULT,; Y0 P% K2 `4 Q$ X
DISPATCH_METHOD, # o# S: H% h) O# N* R& N" E &dp2,1 J# T8 n* z* f4 i/ b" t9 R
&var, " V1 I, H# l1 f$ T! o4 x. K4 }/ ~ &ei, , q* \- }. `! Z: f n1 r0 m; }+ j &uiErr);8 U. S* Q- C9 N1 x
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SysFreeString(topicStr); - j8 S3 H2 m: ` SysFreeString(itemStr);+ R) P4 n. q4 Q8 v
请问该程序是获得extend里面的哪个值?9 B; l9 {+ ~* L% M( c
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????