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： + n+ b3 s. d7 @# | q. f: ZName = (WCHAR *) L"Poke";: @6 S, a4 T; Y y0 T! Y+ M8 b
4 ^6 O% e* g* V: g. @& D r: t hr = m_pDisp->GetIDsOfNames ( , F' H }: i _, p# N, M IID_NULL, // reserved , P4 ?4 n9 C0 r" O: a &Name, // Array of names to get IDs for" w: K! m6 w7 @9 ]; d4 L; L
1, // # of names in the array/ ]5 w& x* N i7 d; _
LOCALE_SYSTEM_DEFAULT, // System locale . n' l: C2 f* D g) x0 @2 L4 d% ^ &pokeID); // Array of IDs to fill on output; e- Q6 b' |3 Y: B( Z
5 ?5 K# L( z% W4 s! {; k if (hr) 1 {; m9 Q$ r+ L) i6 G" } { & ~7 U6 n# _" w MessageBox ("Get Poke Unsuccessful");& c) B" c1 V. ^2 c3 f5 D L* l
return;7 O8 E2 J. ?$ @ _. T+ e6 ]7 j& C
}+ p3 k+ ]' X+ I& a- ^9 \
' |0 ^" }1 }% e$ c" s& T/**************************传递数据给extend**************************************/ ) D5 u: X2 t% _- \ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 4 S" F' l& l7 i & C% L7 X# f# u8 D6 B valueStr = SysAllocString((WCHAR *) L"1232");% H) V' _: g$ Q9 q; y* T, i
VariantInit(&pokeVariant[0]); ( ~! l2 K" E9 u* y; U" v: L, R$ F
pokeVariant[0].vt = VT_BSTR;, f* H* K5 l8 W! _ ~3 |6 l
pokeVariant[0].bstrVal = valueStr;+ A6 a/ _+ a V! F7 M+ g4 l' l' S# z
F5 \7 k: s# U$ [& n, { itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* s9 j5 v5 A( ~2 \% j2 t
VariantInit(&pokeVariant[1]); 9 i5 Q: Z& u7 z, z: Y pokeVariant[1].vt = VT_BSTR;! C. T. R. \9 g/ _' n/ n
pokeVariant[1].bstrVal = itemStr;5 \, V3 |9 s3 R# o3 H4 B) E! A
' I* g0 I- X( c( p3 X0 O: @* J topicStr = SysAllocString((WCHAR *) L"system");# W/ W8 i7 M' o& j2 Y) A; c
VariantInit(&pokeVariant[2]); ! R- O/ G8 G) @+ O+ w9 ]
pokeVariant[2].vt = VT_BSTR;; i! ]/ y, e/ ^2 i x
pokeVariant[2].bstrVal = topicStr;% v5 }: S% o: V# ~, h
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// Set the DISPPARAMS structure that holds the variant.# k- X# G/ y0 c+ }+ g. j
; `. S* r+ |, {" M) C% `
dp.rgvarg = pokeVariant;2 f) }2 R! F; I% ^1 r. N# j/ j
dp.cArgs = 3; # [8 Q$ f5 b! `7 e! { dp.rgdispidNamedArgs = NULL;6 V1 @2 q' I2 Y/ R4 W3 ?
dp.cNamedArgs = 0; : B8 c! V* V( Q, P7 G/ c. u# I0 l" C) ?3 ?4 h/ u
// Call IDispatch::Invoke()3 C' P8 t# k) G4 s
8 b& T. ?8 y5 e$ B* | hr = m_pDisp->Invoke( 8 q% Z& M' ?" B, D2 Y pokeID,0 n r% g+ g0 D0 Z) d
IID_NULL, - J$ M, E" A( R4 x- T0 X/ ? LOCALE_SYSTEM_DEFAULT,1 n. ~8 ^+ e6 A: u& v
DISPATCH_METHOD,: W4 n9 p3 M' h8 Q3 [% C4 i
&dp,% J0 f( I0 |4 P6 u. ~0 t+ Q
NULL, " ~) Z; R! W8 e- i5 k &ei,- `1 W$ F; k7 P
&uiErr);6 @- p5 p8 W, y* i; g
4 a5 R6 A3 Q& L( l9 b( q3 [
SysFreeString(topicStr); 3 N# B; P" w+ X/ ] m# ] SysFreeString(itemStr);' y1 |- G y& p7 R" ^9 H9 N1 A. x# Y
SysFreeString(valueStr); 3 n+ W7 R9 ], K0 j3 M5 H ], a+ p
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？？？ ' S( L: s$ V- w0 s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？？？？2 C* l- V: B: n& S
" I6 ^0 Z- x8 M! U 8 j8 D% G. S0 X! z2.这是request的程序- ] D' A+ c, B2 h6 H+ Q
// Request a value from Extend 1 ]. F, K2 [+ l. @//8 B+ [+ Z1 b1 G. F1 {
// Initialize the variant that will hold the BSTR. Set the variant's & w" u2 k+ F2 m) v! t/ r2 f// type flag to indicate the fact that this variant holds a BSTR. Place the 6 z/ C' ?$ k4 X$ R8 E// BSTR into the variant structure.* `: B+ H) w) u
$ h$ r( y: K& @2 C; P
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ' o7 t+ e2 g4 I6 }8 o3 C; O$ s o 2 [/ r* c) J9 a
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); * A) ?, [: I. [' g) g VariantInit(&requestVariant[0]); 4 T* \# }5 [+ p6 s1 D' f requestVariant[0].vt = VT_BSTR;3 T( w8 s2 G ]
requestVariant[0].bstrVal = itemStr; + S6 W( |: R0 h$ _6 k K b 2 d/ m0 Q" o/ Z. K; q topicStr = SysAllocString((WCHAR *) L"system"); ; I& p7 _5 P2 a2 @ |. b5 j% K" R VariantInit(&requestVariant[1]); 4 }$ o- k5 Z: o, d6 q c requestVariant[1].vt = VT_BSTR; : v4 d$ P4 K! J requestVariant[1].bstrVal = topicStr; 0 Q7 b$ r9 @ Z# G7 _( w# z: a ; Q2 _: S8 G! P6 G$ O4 ^2 X8 c8 U// Set the DISPPARAMS structure that holds the variant. 8 A/ x. t6 A1 i Q 4 r2 s6 J) W7 k) z( p Q. A dp2.rgvarg = requestVariant;' _+ Y( `; I5 P3 \# p5 Q0 t
dp2.cArgs = 2;' y/ D, ]5 O: P* F3 e1 \$ \* @. b" w
dp2.rgdispidNamedArgs = NULL;5 y( k( B. D8 \9 G
dp2.cNamedArgs = 0; + |3 h7 p) e. {& Z3 m9 @ " \5 z/ [% w- C- O var.vt = VT_EMPTY;2 F: q: o( D- ^! c; ^
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// Call IDispatch::Invoke() c2 R/ x7 v( q+ c$ Z
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hr = m_pDisp->Invoke( & ~6 E! Z0 s% \ requestID,0 P/ w' I; X0 H) v
IID_NULL, " N7 ?( H* p& K5 Q LOCALE_SYSTEM_DEFAULT, ' C+ W& W+ {. t# d DISPATCH_METHOD,) |1 Z& g, O9 t% g6 j' ~
&dp2,7 l; M% Y8 a0 j# t, E+ I
&var,* N8 E3 d2 h6 T
&ei, , [: k3 l& k: {; i &uiErr);- F0 v0 b" u \$ |, U* y+ ~
发表于 2008-11-25 19:37:03
