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:3 U. C) K' j* `# s I6 ^
Name = (WCHAR *) L"Poke"; / ^8 z0 {. l' W" l% b! `1 ~ ( [5 ^- b, {) f+ Y5 z
hr = m_pDisp->GetIDsOfNames (0 K! o" {! q! j8 O. K- l! U0 v! ?
IID_NULL, // reserved # r9 u3 f- p. w$ k &Name, // Array of names to get IDs for % P% r5 Z$ C8 b2 { 1, // # of names in the array0 S, l: t0 l- o% }
LOCALE_SYSTEM_DEFAULT, // System locale! S& X# c: U3 I; J1 o x8 b
&pokeID); // Array of IDs to fill on output/ H$ o6 \* D( g: B0 F8 u, S" R, `
# [; J" O) |. p1 {3 C9 h+ w if (hr)+ W# H& [, I3 M
{ ) y" D- Q8 L+ g MessageBox ("Get Poke Unsuccessful");5 P! _! {- Y2 @* L- @! @$ {
return;0 o( y( ^$ v% _* H( T1 b
}% }& h; v- J- b% d5 ?# q$ H
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/**************************传递数据给extend**************************************/ ' Z. j: a8 R! F+ V; `. p0 G pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 5 `& U0 q! n% J. K3 r" L 5 L# ]8 E5 [8 ^- y0 f. y valueStr = SysAllocString((WCHAR *) L"1232"); $ N2 E3 X0 a, j4 P VariantInit(&pokeVariant[0]); ! _+ D% s* u5 K/ ^- w( `9 H% x pokeVariant[0].vt = VT_BSTR;9 k9 e6 ]( U) ?/ _& e& j
pokeVariant[0].bstrVal = valueStr;7 @: D6 F: ]: [. G h( w+ z3 ?
( J& |9 E# G3 H9 g# V4 R itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / E0 z- D5 \+ Y VariantInit(&pokeVariant[1]); % y7 S1 e% `& u+ y+ D- p* S% q) O
pokeVariant[1].vt = VT_BSTR; : X5 d$ |6 X, _" i* X pokeVariant[1].bstrVal = itemStr;! \0 ]' w N6 b+ ^
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topicStr = SysAllocString((WCHAR *) L"system");* D6 ?' R7 F+ G" c4 X& k
VariantInit(&pokeVariant[2]); " Z- M- a0 v: T- E' G pokeVariant[2].vt = VT_BSTR; 0 X8 E% R; Y- D4 w0 | pokeVariant[2].bstrVal = topicStr;& c+ y5 n) R" V; z- Z/ f
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// Set the DISPPARAMS structure that holds the variant.5 A9 X& S* T2 X+ d2 x4 ?4 k: u
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dp.rgvarg = pokeVariant; 2 [, V! w8 B0 L: g8 V ~8 {% L dp.cArgs = 3;* C+ q$ L( A: f% P) V% Z! {" R
dp.rgdispidNamedArgs = NULL; 8 {1 l4 N5 V2 P `, |$ @+ h dp.cNamedArgs = 0; % i2 c+ d2 [8 z+ n, D3 S1 ^2 r1 E" y ~& {. S& T) K- }7 X
// Call IDispatch::Invoke()8 Z; ?; F9 ?: L% c+ [! c' a
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hr = m_pDisp->Invoke( 2 @ W* }* T* O% f pokeID,! Y v6 a' b. m5 w3 t% X. T4 H
IID_NULL,) r7 m* `( M3 E0 `' P7 `# a9 |! L
LOCALE_SYSTEM_DEFAULT,- z b, e1 T5 r: [
DISPATCH_METHOD,% \+ @* m+ o- c! [4 L; S
&dp, % @ `1 Y8 r1 \& |( Z* p: d NULL, 7 O8 q E0 q% ]0 n5 L &ei, . ^) [7 l5 L) {- s &uiErr);1 L4 i" }8 O, y/ g! X
1 |1 p2 U6 v2 H SysFreeString(topicStr);3 h: _: O! V! I u
SysFreeString(itemStr);& G1 s$ c8 ?' y3 \4 {: P; E( t
SysFreeString(valueStr); " Y# _- l4 @5 ~ L; o; O% r, o4 |+ ]- C0 P# c' d+ ]. V
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???3 c, f2 C* I' \* m3 f4 S3 v: ]
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 O0 F% \2 Y! }" I8 e3 i( [: a3 a! c) z. `1 E: E
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2.这是request的程序 ' \$ {( N; s6 p6 @// Request a value from Extend v3 `- h( N& x4 [. G/ \// # f. X7 o8 \# z0 C( O* T; R// Initialize the variant that will hold the BSTR. Set the variant's0 J6 Y5 d4 a5 a2 B" g8 b
// type flag to indicate the fact that this variant holds a BSTR. Place the# b! g p2 c8 j2 g
// BSTR into the variant structure.2 n( Z$ z7 O9 D6 S; z
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);/ X3 X3 H% E. `
& l; p4 U/ L0 Q' e& V4 D itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");6 l/ C+ X4 I* k! {9 w6 k5 c
VariantInit(&requestVariant[0]); " \% i' K" T$ D requestVariant[0].vt = VT_BSTR;% |- \2 y" a$ {; [9 y6 ]
requestVariant[0].bstrVal = itemStr; 0 L- e( J- O0 T9 u' w 7 L2 }9 v" i# d0 O& Z( w5 K topicStr = SysAllocString((WCHAR *) L"system");5 h/ |. B: S# k7 H9 N$ T% Z5 v
VariantInit(&requestVariant[1]); ! h# [0 I) [8 d+ [: ~ requestVariant[1].vt = VT_BSTR; " H+ V8 `- o, T. O1 p requestVariant[1].bstrVal = topicStr; 0 |3 Y' Z: E S+ u! ]& S, l" s3 h8 k! y# _7 M
// Set the DISPPARAMS structure that holds the variant. & R( O; o! Z( ^, T4 e$ L2 {! b2 [, W5 N
dp2.rgvarg = requestVariant; 9 W+ `8 r& U, o% ` dp2.cArgs = 2;# W4 x& N/ S8 V2 z. Q' i7 {# h
dp2.rgdispidNamedArgs = NULL; . f( A$ k! e' h h dp2.cNamedArgs = 0;( R5 @. i- z" L
* A1 j! x9 |+ t1 Y8 ? var.vt = VT_EMPTY; 8 t" q4 P: Z3 D5 P& l. Z8 `6 t( p1 E0 g
// Call IDispatch::Invoke() , C1 m, `* Q g$ J* i* z 7 P5 q% G! @9 s5 l @ hr = m_pDisp->Invoke(3 a" c! t6 r$ D; f; _/ S
requestID,) A0 L, \ j# r8 k8 O
IID_NULL,4 S" B- `$ Y- |- f8 ]
LOCALE_SYSTEM_DEFAULT, / s: Q1 P7 V: Y6 H: P/ F DISPATCH_METHOD, 1 k V' ? {9 A h5 T4 b2 z &dp2,! G# C. M& Q5 s- N) `
&var,( p8 u+ q3 c) D6 P/ o! m
&ei, . b3 l9 e# k" s; X/ I) @ &uiErr);6 q7 @) q7 t p0 O
7 \4 J& d4 {) B. b0 e( K3 F SysFreeString(topicStr);3 h A: ]( W* o( R& i
SysFreeString(itemStr); ( L5 A2 H0 ~7 W0 o请问该程序是获得extend里面的哪个值? + H" ]! D" @" V& t$ Q' \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????