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:- _" P( p" K% H1 ]
Name = (WCHAR *) L"Poke";- \, r8 B3 Z2 r- c) M
. n6 ^: Z( Z3 j0 B ?9 a- q% [ hr = m_pDisp->GetIDsOfNames (' E9 V+ Y, m- I: c
IID_NULL, // reserved8 F" h8 l1 F% G3 f$ x& [& z* Z
&Name, // Array of names to get IDs for " M7 h; g+ j9 i2 R6 h) e# H0 k/ c 1, // # of names in the array% R7 v. P8 a$ p4 W' l: F
LOCALE_SYSTEM_DEFAULT, // System locale - c* I8 N4 i7 G! r0 S; H: o &pokeID); // Array of IDs to fill on output6 F) Z8 x3 Y8 f+ T2 E3 M! G
+ \; w4 p4 X& S1 i, U if (hr) 3 R6 S9 O8 v' _0 a. N {$ @5 \' C0 h6 k, n+ i
MessageBox ("Get Poke Unsuccessful"); ; j( z$ {8 }1 B+ @: g return;/ c4 p6 `6 Q' s, d
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5 {5 w0 s$ I, F9 A valueStr = SysAllocString((WCHAR *) L"1232");7 `8 p" X5 ^7 r$ i" h5 H1 W
VariantInit(&pokeVariant[0]); 9 ^9 ]. U; h k7 E
pokeVariant[0].vt = VT_BSTR; ' V) a0 b" ?& T3 y8 H. S3 ] pokeVariant[0].bstrVal = valueStr;5 l( d' {' A$ G
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; ?6 M# z7 h6 \) H4 G8 D' p( x
VariantInit(&pokeVariant[1]); % Y! b* b* n# m, n" h) c! X
pokeVariant[1].vt = VT_BSTR;- c) K& K, L9 K! p. T( ]" m. D
pokeVariant[1].bstrVal = itemStr; ( j' L( l7 Z! Z( [! z! I( b# V1 _# K8 \8 v- ]
topicStr = SysAllocString((WCHAR *) L"system");' ]$ I$ ]: L4 o V( B
VariantInit(&pokeVariant[2]); c; l% O8 |& S, ?2 K, d
pokeVariant[2].vt = VT_BSTR;+ T. W) G$ w: v& z$ m
pokeVariant[2].bstrVal = topicStr;3 Y! c3 B( r: _9 ^7 y2 n
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// Set the DISPPARAMS structure that holds the variant.) Y0 Q7 `, S( h4 S6 B+ g+ G
: Z: c! }! P, v2 A. y' ?* z dp.rgvarg = pokeVariant; + l t$ a. f0 E( ] dp.cArgs = 3;2 N- @7 F! g# Y! H
dp.rgdispidNamedArgs = NULL;; u. X8 ]* F. q# ?7 |& s
dp.cNamedArgs = 0; 8 O; g$ D# e; ~+ s* d# v7 e! N# d1 M5 R
// Call IDispatch::Invoke()# n0 m9 b( y4 B1 x$ k5 ]) A. a
; |# ]& G* c, z hr = m_pDisp->Invoke( 0 Q6 H: z0 C c3 c7 z" ?, K5 ^ pokeID, % g# ]: S, {7 H7 ` IID_NULL, 2 R4 ^# G a, y+ V! h: ?! G LOCALE_SYSTEM_DEFAULT,$ c& D$ W7 J! c" W8 G
DISPATCH_METHOD, : B/ ]9 N( v& u1 N$ `# j- D &dp,' k5 X. h( T8 G+ _
NULL, 4 o3 r; p# w2 Y+ O7 Z &ei, ; C7 L' M" b) L6 ^$ h% s+ C+ e &uiErr);; Q( |) r4 h8 L9 Z# n) X: u
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SysFreeString(topicStr);: O" Y$ {! |: v8 ^
SysFreeString(itemStr);# a7 h8 t- b0 O1 s
SysFreeString(valueStr); ^8 o1 a9 Y! I/ X; P+ B( g ; ]6 {; m- Y4 p j4 ]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 I, a! I' Z) k! ?7 ^" a" t
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????" Z: I7 Y4 V( U+ O
9 c* P( V3 O9 ^- k+ L) u/ V * u! m1 M" D: k" O( V4 h3 g2.这是request的程序+ d% m; b% L3 W* `9 `
// Request a value from Extend 0 X5 V) x! F/ U6 s" o7 D// 6 k( c2 E" r6 f2 ?. T# {2 S! \// Initialize the variant that will hold the BSTR. Set the variant's 9 B' S0 n! Y3 L// type flag to indicate the fact that this variant holds a BSTR. Place the 6 q V$ e0 |* I% s% r// BSTR into the variant structure. # |4 D$ B; Y2 Z* x! G) \/ p. L, G& l/ k1 v' P" y
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);" g. I5 R N$ g