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:5 M8 j$ ]* w) O! R
Name = (WCHAR *) L"Poke"; 6 R5 C. |3 v6 O3 Y9 N- V3 h. ` | X % L% n) }2 |9 e# |" J* y hr = m_pDisp->GetIDsOfNames ( 6 v9 Y( n6 m* m- h6 @" H% Z IID_NULL, // reserved; q: Z0 u9 D' r( K1 J
&Name, // Array of names to get IDs for ' C( c( N9 N- o 1, // # of names in the array, z' J. D; k* ^
LOCALE_SYSTEM_DEFAULT, // System locale # l, j+ j I8 P2 S f &pokeID); // Array of IDs to fill on output" ]; G I0 i# D! u( p* J _2 x
4 k/ v# Y! A1 A6 V1 U# ` if (hr)9 H1 w' ~% n. q) o& ^- n
{ 4 I8 f0 u$ x A: r; m6 T; i! h5 y MessageBox ("Get Poke Unsuccessful"); & V& U, f/ v$ G+ c% q return; $ Y& D( M) c' p1 \+ i% B } 7 Z) A9 G% V# \% [ D( {1 j3 @0 v* R# G7 Z$ Y! r. c6 t
/**************************传递数据给extend**************************************/6 u, K, J( r! ?% u) V( H
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);, o1 k% Y7 D( G. e) {
8 u q- l4 B& a valueStr = SysAllocString((WCHAR *) L"1232"); ( ^2 ^* L2 t/ H$ j- t& b4 f9 J& s VariantInit(&pokeVariant[0]); 6 e: p# Q; z% K: H6 f
pokeVariant[0].vt = VT_BSTR;$ H% W4 r3 T! o
pokeVariant[0].bstrVal = valueStr;- B: ^8 ~0 [5 C! k; E% x& Z/ i9 e
3 P8 [2 k% z7 F1 I itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); * q0 l$ j+ z$ C6 m6 Q9 | VariantInit(&pokeVariant[1]); # g+ N$ u/ ~5 z% m
pokeVariant[1].vt = VT_BSTR; 5 \9 w, f. N: |# X: q pokeVariant[1].bstrVal = itemStr;* @$ I* l3 s" n1 n& C' n/ s5 Y
2 i; U+ q! e7 ?. T
topicStr = SysAllocString((WCHAR *) L"system");! M* e* [6 G8 [/ h% O$ ?
VariantInit(&pokeVariant[2]); ) e w9 i; R2 w4 q8 {) U$ @. B
pokeVariant[2].vt = VT_BSTR;3 q! p8 i Q1 V5 x4 F- ^
pokeVariant[2].bstrVal = topicStr; $ t3 x2 K# D n3 e% b9 g/ E5 |, E& m
// Set the DISPPARAMS structure that holds the variant. ! Y3 w7 k- v2 ?3 b4 c1 U c; \8 d G7 h" O% B dp.rgvarg = pokeVariant;4 m1 @8 j- j0 ~! o3 O* s7 V" w
dp.cArgs = 3;. {% a5 j8 }8 J- R! t# t
dp.rgdispidNamedArgs = NULL;: F7 ]) }6 C% K2 B
dp.cNamedArgs = 0;4 h" s( U! c0 K) f" ?
$ h0 }' H7 b6 L) Z8 N/ R D) W// Call IDispatch::Invoke() 5 z& W4 p3 U9 r8 z % ?3 z) z$ L* j8 t# E hr = m_pDisp->Invoke(" l. M5 M i; x. u3 N& }+ H+ Z& }0 u
pokeID,# Y& O# j; d& i+ i! s J
IID_NULL, * @+ x5 n" ?3 x! e7 ^" L+ @2 ^ LOCALE_SYSTEM_DEFAULT, * ~% N1 x0 d* j% x) q DISPATCH_METHOD,8 A( {4 |$ K1 P" d' M+ _3 {
&dp, 5 L3 M: Q3 `1 N6 B NULL,4 B* k3 @9 t7 c9 f0 Q7 G" d
&ei, 7 P/ l) s; H$ o% b &uiErr); 0 n, N7 i: B6 z. }- m ^ * `8 K, J2 e0 O SysFreeString(topicStr); ; D y7 e7 H% E+ { SysFreeString(itemStr); 7 M7 b8 j6 s: I SysFreeString(valueStr);. ~6 n7 i C, ^
0 E4 J. X) v( x& i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??? ) `+ U1 |- u) m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???? * m5 _; G6 k5 f- p8 T7 M; ~+ R- H5 M( q: w
1 a$ ^- d6 }2 y: X3 H
2.这是request的程序 8 U4 p6 L# M/ v, C// Request a value from Extend 8 P8 t* O* u+ n6 A! H: i2 z6 [' |//% Z0 S; k1 h! M$ S
// Initialize the variant that will hold the BSTR. Set the variant's, V$ j0 m" X* e' H) r
// type flag to indicate the fact that this variant holds a BSTR. Place the ; X, B" X- V3 {+ I6 W// BSTR into the variant structure.4 F! L1 j( ~/ i, R# M g
9 x* }% G2 r" c" g# @7 Q+ M
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); , h" ~7 B# X0 _ ) J* E! x' o9 S4 [: I; R itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( |. @! q! X1 ^7 O3 a0 b VariantInit(&requestVariant[0]); ; A' K6 ?/ w. l; k9 N: e' J1 D requestVariant[0].vt = VT_BSTR;3 k# I: S! e A; J9 s1 B) T7 V/ K! ?
requestVariant[0].bstrVal = itemStr; 1 G) m! U9 A4 H P! V9 i. ~4 S% n& D+ x6 E5 @) L- L
topicStr = SysAllocString((WCHAR *) L"system");7 q$ Q$ g/ e" x- z% g" [
VariantInit(&requestVariant[1]); * U0 R) u# p% y+ O1 U& z4 K v) j& F requestVariant[1].vt = VT_BSTR; 0 J1 Q5 C7 H3 w% s. i requestVariant[1].bstrVal = topicStr;# G; y$ R3 L2 I! r V* ~4 a5 _
@1 U9 o0 p0 P7 ]5 V, u! O- G
// Set the DISPPARAMS structure that holds the variant.; |* c' g+ L0 s, H6 B/ Q
9 R/ [: {) ]% k5 s7 E/ M dp2.rgvarg = requestVariant;5 s! x8 y' J% h' n1 ]7 m7 j& L
dp2.cArgs = 2; B! f( I0 g1 x! r, j& n dp2.rgdispidNamedArgs = NULL; : J- k) h* z. H! O; d( j dp2.cNamedArgs = 0;$ [3 [: F; B% {' d2 D. X
3 v! d/ v# K" p1 H4 a
var.vt = VT_EMPTY; 8 Z N2 a$ H7 `' V + m4 R, E2 D$ [& T// Call IDispatch::Invoke() / X( A1 S2 n, e, k7 ^* G/ ]/ E * W5 m! T9 j( L6 ~& B6 I: R hr = m_pDisp->Invoke( o4 ~. }9 N% G- v% `; o requestID,' z3 v0 ~. V& w8 l& W, Q( I) }
IID_NULL,/ I, z6 f1 i- c X& v* T
LOCALE_SYSTEM_DEFAULT,1 a/ x! Y9 }$ {; r' h, C
DISPATCH_METHOD, & W; l0 J1 l; ] &dp2,' |% s0 r1 m( W
&var, # ~- B' }/ W' v5 @! B6 ^ &ei, 1 C% `; }. k+ B# u6 @. L' x &uiErr);, n" N3 Y- a/ }; V* }" B* J) T# v
+ U% c4 N' m+ q! Z0 F SysFreeString(topicStr);4 d; ]$ p* z" S; b) |
SysFreeString(itemStr);, k( J( M) R3 u( u6 n
请问该程序是获得extend里面的哪个值? ' K _( N# T( A4 B2 t( v' Z) H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????