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:8 V0 y( I/ g2 Y7 f/ Z6 S1 Q9 z2 \
Name = (WCHAR *) L"Poke"; - c: E0 u$ U3 R6 p6 L8 i2 H0 C & n' E" ] d8 r3 D5 Y) w1 u
hr = m_pDisp->GetIDsOfNames (4 x2 V) A" H$ s5 J0 a
IID_NULL, // reserved 4 K% t* n, |$ @& c7 b$ S/ m! m &Name, // Array of names to get IDs for 3 ^: d% x! X x& n* H, q 1, // # of names in the array9 ?. h/ O: n. W1 `
LOCALE_SYSTEM_DEFAULT, // System locale 0 S$ G t! G4 O. q" W &pokeID); // Array of IDs to fill on output : W M, t" }6 n. T3 j( r* x 9 P. q+ X8 }3 G+ k% y7 \
if (hr)( q9 h ]" u3 X8 v
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MessageBox ("Get Poke Unsuccessful"); 3 B o7 X. {9 g" A3 ]' r return; / u2 b( T8 \" B h4 ] }0 d+ i! I) I! `, {
. ^; ~+ I* t, \: k$ ]/ P/**************************传递数据给extend**************************************/, l% f0 }7 Q, u O! {
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); * R w; [- q% @2 F, S! s3 H/ } " f& F1 b1 ~/ ]" \
valueStr = SysAllocString((WCHAR *) L"1232");3 ~4 }+ i: {: ~+ | Y
VariantInit(&pokeVariant[0]); 2 d/ m5 @' U* }/ ]" m pokeVariant[0].vt = VT_BSTR; 8 L$ x q0 Y$ x pokeVariant[0].bstrVal = valueStr;' V/ ^! b2 A; H4 B$ U
6 Q+ v- m7 ?& k itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 ] d* i9 G4 i* m7 m, o VariantInit(&pokeVariant[1]); - E5 I- ?/ W% E9 Z! E5 }+ e
pokeVariant[1].vt = VT_BSTR;' ^- w: H# Y( y
pokeVariant[1].bstrVal = itemStr;9 [* b- r z7 \8 Q9 d) q8 b
5 y' q# n; K- x( S; Y topicStr = SysAllocString((WCHAR *) L"system"); ' H1 X! }9 i) K7 G VariantInit(&pokeVariant[2]); + k! _" @* e7 K1 p5 C pokeVariant[2].vt = VT_BSTR; 3 P) e8 ?0 Y% S$ z2 F" Q% a pokeVariant[2].bstrVal = topicStr; 6 I* p1 G4 O' M, e ; n, R1 N( G) {// Set the DISPPARAMS structure that holds the variant. , T$ u3 G0 w) V, Q+ x! U4 \% K- v - ~8 W* B) s% T0 D/ g$ ^ dp.rgvarg = pokeVariant; $ b3 |( Q, i/ J& B, V dp.cArgs = 3;0 U( A& Q: i& f3 Y
dp.rgdispidNamedArgs = NULL; 8 ]6 X& Y* [( [! j( d3 x9 ]0 J" e. { dp.cNamedArgs = 0;6 @+ d1 I+ k2 g$ U
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// Call IDispatch::Invoke() 9 _+ l z, |* E" y1 D, V* [ 2 f! `$ S& r$ W* W; n G* ` hr = m_pDisp->Invoke(: l: U* a% Z& J
pokeID,7 E: S, M/ ^, t! t
IID_NULL,- J1 h6 T; F8 Z9 d+ {& L, L8 k- g
LOCALE_SYSTEM_DEFAULT, . _- a2 |* [; h$ u3 T DISPATCH_METHOD,& ?. ]8 ?& G9 J. U6 `5 a) E
&dp, & R0 ~, i7 L# { NULL,6 M& s0 }0 {: n8 `
&ei, % U/ d( ~6 s8 F2 C" y &uiErr); " q- Z* A5 r) Z( `: s' d* i( l3 I
SysFreeString(topicStr); $ L+ W: [4 G( w' F1 h SysFreeString(itemStr);2 R% m7 Q9 z5 A+ _2 L; u
SysFreeString(valueStr); ! \. ]% H0 m9 m 7 i% }5 Z, o# x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???# m) z8 T# T. n+ F. \ P& z
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????# [$ m; R' }3 Y+ \
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2.这是request的程序 . s2 z0 u' `8 ]0 O2 U// Request a value from Extend$ f! f) ?# n( v5 b& P- c
// 6 a6 j8 H$ y, ^& [/ D. y// Initialize the variant that will hold the BSTR. Set the variant's; [3 _" L- _* Z; Y$ W
// type flag to indicate the fact that this variant holds a BSTR. Place the4 L: F+ L% P8 I6 T& ]
// BSTR into the variant structure. $ S8 C, e2 N: Y, z/ u1 y3 h- o, x: {* y2 o# D3 l& j9 S
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);+ j) l3 P' N, e/ a