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:/ {' C# R6 h* T' K
Name = (WCHAR *) L"Poke"; 4 }5 I" k! `5 L0 {% \ + T0 }. V, r8 c1 M1 f* W$ w
hr = m_pDisp->GetIDsOfNames (! h/ j' o9 F+ |3 A
IID_NULL, // reserved+ A( j: Z: N% O. P
&Name, // Array of names to get IDs for6 e8 Y, m, x0 a, `) W0 c! Z
1, // # of names in the array1 i8 n7 _5 P" N. O( [3 j0 Q
LOCALE_SYSTEM_DEFAULT, // System locale. v) P2 q; g/ F/ C4 ~
&pokeID); // Array of IDs to fill on output& }: p) w" d+ @' x* J
$ L( X5 A! m8 J f4 h1 z
if (hr) # N( p8 V6 @, S( d {! A" p0 o2 F8 D8 ?
MessageBox ("Get Poke Unsuccessful"); 8 [8 b+ n9 i7 L/ Y( Y( \ return;8 T/ X" K, V; h5 U; L# O
} ' N: i. F L- ?' x9 [; d1 ~ * V4 o# `1 }/ f8 x! H& J B4 x2 S/**************************传递数据给extend**************************************/ " P7 l6 H* J2 x: i pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);9 P6 g/ l6 ]. A) K4 ~
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valueStr = SysAllocString((WCHAR *) L"1232"); : Z( h7 e/ t( w8 o9 A( H! \ VariantInit(&pokeVariant[0]); 3 L3 m$ P$ b; |5 s pokeVariant[0].vt = VT_BSTR; , L3 n7 Y0 s+ I7 y+ Z1 }0 ^3 V- b( b pokeVariant[0].bstrVal = valueStr;$ _ }5 z* k7 `+ s7 y
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. f) f) M; ~3 o& J
VariantInit(&pokeVariant[1]); 6 u. [, _* J g( ^
pokeVariant[1].vt = VT_BSTR;( O* O2 y' R7 R* ?+ o
pokeVariant[1].bstrVal = itemStr;& x/ @9 v$ a. g. Y
' f; \: q7 {. w m0 p topicStr = SysAllocString((WCHAR *) L"system"); , R% d6 K! W8 _' E VariantInit(&pokeVariant[2]); $ T5 k0 a5 A+ v$ D& s/ w
pokeVariant[2].vt = VT_BSTR; ! b/ ^2 h/ o3 q" ]6 ^; } pokeVariant[2].bstrVal = topicStr; 8 T& {: o2 a4 o* p1 U- h4 R. a W
// Set the DISPPARAMS structure that holds the variant.+ h# O* R4 m- O2 s2 T# u. f. w# h
1 j/ i" m( s2 Y4 [) ^, c( H( B dp.rgvarg = pokeVariant;+ M' U' a- R }" L+ Y' V# E6 X* c
dp.cArgs = 3;* H0 Q9 Z% X- G8 j! U: M) ~
dp.rgdispidNamedArgs = NULL;! H. g' h2 ^: {, E5 h- E, H6 I
dp.cNamedArgs = 0; ( [3 ^; c r: }1 W9 `# i/ q4 E" g5 K
// Call IDispatch::Invoke()0 K" u9 O( j% M8 w, _
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hr = m_pDisp->Invoke(- c8 }- t h1 Z. G- s' _7 F
pokeID,9 g" a0 K4 u5 P, C1 x. e5 ]
IID_NULL, 2 V* S( K* X1 W- w5 o9 w. U) y' l$ H LOCALE_SYSTEM_DEFAULT,, [" U- R9 v, G/ l
DISPATCH_METHOD,7 ^/ I& c3 u8 F: d' r- G0 h0 ]' g5 e
&dp, 7 |* C4 G0 S: {) o0 A; {7 y4 S, v7 O: o NULL,7 M+ u0 {% T& Z" t! l( ~
&ei, 0 |2 q& w, r+ m0 A4 `$ v9 C &uiErr); 0 o4 s4 o* ], H. D) q3 s/ Y $ l" {3 ]% v& u4 \: O/ A SysFreeString(topicStr); : P) Z% V. T3 i7 K, { SysFreeString(itemStr);1 F6 N- q- W, J% ^2 c
SysFreeString(valueStr);( d2 k# r% Z. t% m; W
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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???' c/ e' M+ ]3 g; 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????4 i7 ]: Q" [/ _# U; W
5 v# f9 O$ w+ Q/ U ? 1 R5 J: R# o9 M+ g* v3 `0 V2.这是request的程序 1 n5 }0 x( @& t, a// Request a value from Extend/ [) Q- V: w, @9 e* @
/// s, y7 p7 c- F5 L2 C* Q4 n6 M9 }
// Initialize the variant that will hold the BSTR. Set the variant's6 }7 d6 f5 r7 \7 S
// type flag to indicate the fact that this variant holds a BSTR. Place the 1 E+ _% i/ K+ c6 U! L, _# T// BSTR into the variant structure.2 |6 m& R1 q+ \$ t
) i O4 Z, t1 X5 E requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); % N# I" f' d3 X1 L6 a ' e9 n6 E" R2 L2 ^
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! @6 [5 x( ]6 o4 S8 \% y VariantInit(&requestVariant[0]); # ]& u' D. y- ^8 H; M% c/ I* l
requestVariant[0].vt = VT_BSTR; 0 O1 [0 X( X: |3 i. M1 x0 @5 V" W requestVariant[0].bstrVal = itemStr;6 P# w; ~! g- E$ O. k& i/ }- G
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topicStr = SysAllocString((WCHAR *) L"system");! L) f1 ^. B7 [; G7 O, W7 G6 ~& h
VariantInit(&requestVariant[1]); 8 e9 g8 |6 ~+ ~* P% z7 F& j# F
requestVariant[1].vt = VT_BSTR;7 [/ A# C* o& w# v4 S; \
requestVariant[1].bstrVal = topicStr; $ ]8 `9 U' Q. I w1 f& D: O- A : m: _- A6 g) I7 K// Set the DISPPARAMS structure that holds the variant./ ^5 L; P9 d7 u: i- v+ x# x( M
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dp2.rgvarg = requestVariant;4 f" m6 ^0 l$ c; z9 j4 A1 S4 A: A
dp2.cArgs = 2; & ]% ~) n" D0 I$ ? u+ z& u dp2.rgdispidNamedArgs = NULL;+ ^9 O$ w- R3 e, |$ K( z& `
dp2.cNamedArgs = 0;3 |; n5 }! {8 Z" q7 j- U: n) y) ]# K; `
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var.vt = VT_EMPTY; 2 h6 F2 [4 w7 c, _# R1 c1 E) M3 h) n4 z8 g3 {) B
// Call IDispatch::Invoke() ( B' G: F& X3 ~$ b" ^- K) j2 N! H& m) _6 |+ a1 k- M' g
hr = m_pDisp->Invoke( ( P% v* M: d7 A, G+ q requestID, % R6 r' Z$ ?) [7 A5 `1 G2 k IID_NULL, 9 y1 o1 v8 q& D9 Q2 `. R( c LOCALE_SYSTEM_DEFAULT," e- F8 m5 x& I+ `2 y6 L: s) e' {
DISPATCH_METHOD,% N; D3 X1 U! v Y* m
&dp2,* R2 G2 k% `- a6 W. I K( _- ?! ~9 l1 O
&var, 9 Z: ^8 K/ ^- N I& J0 ? &ei,4 |( D9 Z8 N9 v: v
&uiErr);, ]' S. U6 o' \+ R
* w ?8 a6 g. m; ?9 X* F) k t SysFreeString(topicStr);9 Y U( C0 Y* F6 h( E
SysFreeString(itemStr); & T* `9 p2 y5 k' C2 K5 u请问该程序是获得extend里面的哪个值? : `9 `9 B5 m1 e8 U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????