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 \, z. [* h# s& H$ B3 x% k
Name = (WCHAR *) L"Poke";& }6 k' p: t: U, |9 s9 ~
* O) [0 H( Y* {# X. ~9 L hr = m_pDisp->GetIDsOfNames (! B h3 B' v& P; b# k
IID_NULL, // reserved2 j9 x! Y9 b' B8 U. ]/ O
&Name, // Array of names to get IDs for% ]6 K+ s" [( A3 g
1, // # of names in the array 4 H/ O9 z) y# D" a- i, b LOCALE_SYSTEM_DEFAULT, // System locale 1 F+ _2 C7 r* Q* f &pokeID); // Array of IDs to fill on output + |# J7 {+ F* O' D I9 V * G6 {9 V3 y- ~! N) \8 I7 y; A
if (hr)) h6 K6 @6 h5 Z1 Y+ L- D' o
{& u+ U: O3 b6 E% o1 s/ ], }% }
MessageBox ("Get Poke Unsuccessful");9 G H3 A5 j' f8 F
return; 7 A' c, d' M: K; Z2 u9 G! x" ~8 B$ j7 L }$ h2 F$ Y i, T, Y7 \, b' T& `
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/**************************传递数据给extend**************************************/ * ^1 N9 d( U: y' y pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ( P6 l' F6 C& F | 4 y$ `2 L& q5 Y4 y) D: ?
valueStr = SysAllocString((WCHAR *) L"1232"); 6 R( j/ W0 w6 l& ?! o; T# w# P VariantInit(&pokeVariant[0]); ) ?) u( u+ T/ b% t* f. L
pokeVariant[0].vt = VT_BSTR;/ P# g9 }- B, o2 |) e6 i# U
pokeVariant[0].bstrVal = valueStr; 5 G: E3 H) N/ N d7 a, N' A * J0 s- ~- U7 e6 v+ g6 n itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( }2 j, B7 N0 F8 M! b VariantInit(&pokeVariant[1]); }' U1 B# [+ J/ @
pokeVariant[1].vt = VT_BSTR;* ?8 C" m" X& M9 H* N
pokeVariant[1].bstrVal = itemStr; * h% o/ K. t7 x8 ]9 U. @! S- k8 e% D( M( `5 ]4 f
topicStr = SysAllocString((WCHAR *) L"system");- q2 @8 B. W. \9 Q
VariantInit(&pokeVariant[2]); 8 S9 Q, U' L1 r) h7 z pokeVariant[2].vt = VT_BSTR;" b, v. z( B0 r2 d& l7 F
pokeVariant[2].bstrVal = topicStr;0 a0 C. [- p# O% ^- M
# B2 q$ I# Y8 G2 `// Set the DISPPARAMS structure that holds the variant.' Z: [5 _% x4 N: u/ ^
) @$ w) R5 M1 z1 ` dp.rgvarg = pokeVariant;5 K' r T: W' o" N* }
dp.cArgs = 3;1 U& f4 l6 G2 O/ F0 X
dp.rgdispidNamedArgs = NULL;$ d0 e, o9 |9 Q0 {# {0 u, n" f, O4 `- L
dp.cNamedArgs = 0; ) m; ^8 a( d% e; j ^7 \( E+ f' N$ ~* `( @2 z% P// Call IDispatch::Invoke() . B2 m n1 G- f% S7 _( m$ | c8 n! t! h& f# S8 D* p5 h0 }) F0 \1 g! j
hr = m_pDisp->Invoke(& f+ J( m8 L+ M& Y. o6 O2 o
pokeID, $ b" k" i$ Z0 |+ S IID_NULL, % u* K7 e! z7 l$ m1 g* u, l LOCALE_SYSTEM_DEFAULT,; d. M: r# T+ A1 S8 o% V, I
DISPATCH_METHOD,6 z$ ^: @0 m% _
&dp,. _# r% B# R& A; j
NULL, " P. M4 y* S& z Q- g &ei,; z5 v L$ U9 M+ \# K6 _- B
&uiErr); ( N8 p; E# P6 f; k% A! f8 T 4 G% S9 Z3 C# L! x& y& E; A9 z SysFreeString(topicStr); 6 |3 v/ Z7 q! ~6 Q SysFreeString(itemStr);3 n- T) ]0 w9 z2 U2 ]9 d( ^
SysFreeString(valueStr);' @" x/ @, j C# l3 k
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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？？？ : L0 ?* o9 I: @$ M( ~) }; B$ h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？？？？ 8 h. A( O; A9 l' Q- A1 A' f$ [3 \ I( ~4 {$ M3 z* R
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2.这是request的程序 i. D0 Q. s3 Q7 [4 z. Q// Request a value from Extend ( P; j* W" N4 `" P//0 E& K o& }" b7 V; }
// Initialize the variant that will hold the BSTR. Set the variant's : o) a$ V) A9 _" S6 {1 I; [// type flag to indicate the fact that this variant holds a BSTR. Place the / s6 y9 [3 e. ]! @// BSTR into the variant structure.+ P! s/ x$ Y, f5 ~# Q5 g! [
8 l/ l4 K1 C$ C- G3 r" }7 |
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); G W; T' F" S+ w2 v1 } 4 S+ P5 S4 B9 ?& h0 ~+ B, d itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # K+ c D/ v4 J, k& r" ? VariantInit(&requestVariant[0]); * D& M$ a+ K( q$ s
requestVariant[0].vt = VT_BSTR;8 w3 \- [8 K* x7 ^! z, A% Z# q
requestVariant[0].bstrVal = itemStr; 1 G E' P, f* ]! y* f' p4 E 4 o+ T6 X$ F% A. a0 f topicStr = SysAllocString((WCHAR *) L"system"); + V. w2 t2 ] i+ o; k VariantInit(&requestVariant[1]); / p) V4 Z6 }6 c3 {
requestVariant[1].vt = VT_BSTR;$ Z# q9 l. u1 r
requestVariant[1].bstrVal = topicStr;: \6 O6 K* R5 e4 c2 I
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// Set the DISPPARAMS structure that holds the variant.+ C. i8 Q9 u0 F" W/ T
7 w& }! v( v8 {/ D, l dp2.rgvarg = requestVariant;5 U( G( J( H, o' x! ~4 c% h- k
dp2.cArgs = 2; / v$ J# _1 l* E" e! r M$ M0 m dp2.rgdispidNamedArgs = NULL; # A. W% {, v. O* `3 `+ q' | dp2.cNamedArgs = 0; % T \7 K& y g2 l8 d' e1 N8 r- A4 B- P0 r, _) Z# S) q9 k* X$ z
var.vt = VT_EMPTY;7 p8 L6 B8 ~( b; D. F$ n% ?, O
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// Call IDispatch::Invoke() B" P; c. y% @% f: _8 `; X3 T( Q7 d1 }! ] p
hr = m_pDisp->Invoke(: ?. y o+ o, z ^' {7 |
requestID,! U/ r( s4 ?: v7 V7 n5 o
IID_NULL, . e, l0 @1 m0 G8 a3 N! C' d, X LOCALE_SYSTEM_DEFAULT,- t# Y; K* v2 A% k$ c- O9 l: _ n" p
DISPATCH_METHOD,, _6 }( ]+ C b+ _7 X; n. Y' Q% ^) H. p
&dp2,4 \: Y. D' m2 P
&var,8 R9 i2 p; u" g; Q) i& L, e
&ei, 5 B. l3 ]! y9 B( T &uiErr);; F- s$ N2 @0 b. V, H: R) X) ]
( S/ l* h# `$ _) X4 i$ x6 e SysFreeString(topicStr); # g" V u$ a; f9 ], d# C SysFreeString(itemStr);6 b0 R, Y- W7 e9 ]: {& z7 T! r
请问该程序是获得extend里面的哪个值？ ] T& j: @' U" 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？？？？
发表于 2008-11-25 19:37:03
