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：0 h* i4 q" R `1 Q6 m
Name = (WCHAR *) L"Poke";' M/ a) T0 f/ E1 U f& I
4 z ?- Y4 t/ T hr = m_pDisp->GetIDsOfNames ( k, `4 e1 w$ _1 b) W9 Q' F
IID_NULL, // reserved 5 c1 `0 k3 ?; d &Name, // Array of names to get IDs for5 A- ~, |6 k% i6 o
1, // # of names in the array8 p& v L2 m# W& p
LOCALE_SYSTEM_DEFAULT, // System locale 9 |: G0 L8 m' F6 {3 x9 ` &pokeID); // Array of IDs to fill on output 1 E3 u# X9 w& h; C ( |: D) D: n" E' ^4 H0 G
if (hr) - @7 A! z/ `9 b# g5 e$ G { : u" e* d# t( z# S' s! K MessageBox ("Get Poke Unsuccessful"); / Q5 t+ M0 `* z/ B* Y& { return;$ W" ]! \0 e3 L6 I; l4 |
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/**************************传递数据给extend**************************************/ . N" i, \ X2 m) u2 ^1 {' X: C pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);" c. F+ x. W, J$ Q7 w
( _$ h. j4 K/ l6 x; W valueStr = SysAllocString((WCHAR *) L"1232");9 B/ n% p1 K, A
VariantInit(&pokeVariant[0]); $ i+ C2 l6 T, L ~# k. D pokeVariant[0].vt = VT_BSTR; 7 M/ y; S9 o9 ?2 j2 k% V pokeVariant[0].bstrVal = valueStr; 6 B' H0 c/ f Z3 k: Y7 ^& P+ v; q6 g
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 5 E6 G- }. U% s% n VariantInit(&pokeVariant[1]); 6 i! \" D/ b. |6 e) ]6 @" h
pokeVariant[1].vt = VT_BSTR;! \9 g; Y) l6 ]$ n2 {& q6 M
pokeVariant[1].bstrVal = itemStr; 0 U$ t( J0 y0 m0 ]% F8 m0 }9 w* p( L+ _9 N/ ^' O
topicStr = SysAllocString((WCHAR *) L"system");8 R; E+ C0 ? K% q" \6 F
VariantInit(&pokeVariant[2]); 5 V, }. ^' k2 ?6 q/ J/ v, V3 ` pokeVariant[2].vt = VT_BSTR; 4 `- W9 M9 V0 ^, d" B2 U H pokeVariant[2].bstrVal = topicStr;6 G% o- H& s: y* X# P) |
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// Set the DISPPARAMS structure that holds the variant. 8 P* s- M5 Z8 T! ] 3 a7 P1 k2 m+ v4 N dp.rgvarg = pokeVariant; ; a2 x. K4 }9 ?) o9 Z0 b dp.cArgs = 3; + r! q- P {/ g" x1 ^; U, C/ _ dp.rgdispidNamedArgs = NULL;6 S% u; }& F; J% A# C$ C7 {7 s) T/ o, l
dp.cNamedArgs = 0;& l3 S- P, I; D3 H2 b
! ?6 { V( E1 z8 a' b6 a a// Call IDispatch::Invoke() 5 M, M: G- ?3 n3 v 9 \5 w& r3 g8 X8 Q6 u hr = m_pDisp->Invoke(0 S* n4 M0 v. |
pokeID,3 ^6 O4 o4 I7 Z9 s6 N
IID_NULL,0 o$ o6 a. V3 p, B3 u
LOCALE_SYSTEM_DEFAULT, ! E% e8 a* x: W6 s% r4 ] DISPATCH_METHOD,: ?# z; h' P4 q
&dp," _8 y. J' V% P* Y
NULL, - }% |. m" x6 b$ o; p &ei,3 @7 d9 y1 h5 y8 w4 @
&uiErr); / O; V. r4 p, p3 m & ]* k! d- j0 @$ ] SysFreeString(topicStr); . |; W* K. n) r* K SysFreeString(itemStr); 5 O' O' K r8 L9 ?! a SysFreeString(valueStr); A) D- P+ W7 e1 s5 z
) f3 v7 w8 J2 p+ g; c! Y) o# j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？？？ 0 Q3 v, G1 Z8 ?5 e" a# E: R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？？？？/ @ c! g8 D/ ?7 t* e
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2.这是request的程序 3 L9 D# g4 n( L" r4 `8 b. U// Request a value from Extend3 ]* J( |* ~" A- w7 y
// 3 {5 Z' n) g |2 S4 l// Initialize the variant that will hold the BSTR. Set the variant's $ J( B. E% H% j' H) U// type flag to indicate the fact that this variant holds a BSTR. Place the; n# Y" h* c5 A" ^
// BSTR into the variant structure. 6 ^) |; u9 U6 b: }# G3 {9 {# q9 D1 a- ?9 ?
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);# E3 E; J0 u& S( r) g
0 \) j' `' H0 R4 ^ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . {* A) C& D' D VariantInit(&requestVariant[0]); * P' L, K0 F8 G. U) Q* ^ requestVariant[0].vt = VT_BSTR;. z3 q& J- x$ f2 v/ a! X
requestVariant[0].bstrVal = itemStr;+ }* h( ?+ ^+ z% n" w
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topicStr = SysAllocString((WCHAR *) L"system");' }# T; b# ^1 U$ ?
VariantInit(&requestVariant[1]); ; V& q( T' b1 t& a requestVariant[1].vt = VT_BSTR; 7 Q; M: w/ F5 d8 ~9 b9 L6 Q3 Z requestVariant[1].bstrVal = topicStr;& d8 E5 U" U. q7 C+ N
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// Set the DISPPARAMS structure that holds the variant. 9 i( @6 A8 w$ \0 N$ n/ [' |. K& P8 U0 v
dp2.rgvarg = requestVariant; ( J0 n, k/ [- L1 i+ P5 ? dp2.cArgs = 2;4 C2 n( |$ m: S) ?
dp2.rgdispidNamedArgs = NULL; 5 i' v6 |9 }/ M( V$ P dp2.cNamedArgs = 0; : b8 L e' R$ Y9 i: l ! m% q0 i) Z' x* m& s* l3 l, K5 B var.vt = VT_EMPTY; 8 w" Y9 l! {# \) y/ Q/ ~+ }, W- [
// Call IDispatch::Invoke(): B/ S4 W2 e& r
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hr = m_pDisp->Invoke( 5 t0 J R: G( q4 ~' Y) N2 D5 B requestID,- Z# A% [% I; R
IID_NULL,3 |# h1 }$ r" G& z1 i5 r: y' p
LOCALE_SYSTEM_DEFAULT, d( h. W( m4 b% a" L
DISPATCH_METHOD,2 y3 ?4 F+ a" A- f! E) z) h4 }
&dp2, : z3 A' [' W5 A: b5 n# }# i4 b/ ^9 ^ &var,' u6 p; h2 S) {" _8 z
&ei,, [) L \# r ^/ \. j# ^2 z! E; @
&uiErr); # o: g6 Q( l$ w! m, P: }2 {( ^0 {1 c& n& i& x) A3 ?) j) U$ F D" f0 G: [
SysFreeString(topicStr); B6 [' [" I2 o' E2 c SysFreeString(itemStr); : ]0 \0 W6 w5 C" _7 g请问该程序是获得extend里面的哪个值？ 9 d/ k) b1 j7 A0 z6 a7 w4 o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
