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：( C5 ]+ R& C( x- N
Name = (WCHAR *) L"Poke"; ! l+ d1 @2 ~/ H" Q$ l' a* n- k ( ?" Q ]+ Z" D
hr = m_pDisp->GetIDsOfNames ( 9 Q- j6 K5 Q) v$ P1 A( W6 F IID_NULL, // reserved' z3 [- B2 h% D2 K& p3 }
&Name, // Array of names to get IDs for 6 W& ?# e7 x2 U7 C) { 1, // # of names in the array( S |& r8 Z' ]* h! e2 ^
LOCALE_SYSTEM_DEFAULT, // System locale $ C% }% M/ a3 G; R- g! c &pokeID); // Array of IDs to fill on output 3 K$ S% X: G, f$ e9 W2 [% K 5 l. D3 H; @. Z: T8 f6 V: R7 ] if (hr) : w2 T! }# n8 \# c# K8 k8 `' Z0 t { 0 w; r& x- Z s8 w; Q5 | MessageBox ("Get Poke Unsuccessful"); " W: e7 _. z& r0 n) f return; + |- s U* _2 L. H }8 |+ e, y3 p( a, m
1 D% ]& \- ?: B' L( ~
/**************************传递数据给extend**************************************/# c" t) ?! S) }6 m! M: ~9 O
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 5 N. v0 O: [) c. R+ u0 }4 h % x/ g) c* W/ ]- I( _: D
valueStr = SysAllocString((WCHAR *) L"1232"); 6 n! Y4 o# O+ ` VariantInit(&pokeVariant[0]); 4 y. N9 S! J5 p- h
pokeVariant[0].vt = VT_BSTR; : H" _3 s8 I4 l* d0 _ pokeVariant[0].bstrVal = valueStr;% w- l+ s8 Y0 b' C5 [
3 c) {9 Y, i" I/ w% o itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 a g+ ~" d- F9 W2 J& { VariantInit(&pokeVariant[1]); : ?& B x* ` N" P, W: C
pokeVariant[1].vt = VT_BSTR;# X; ^# O* A0 t: R
pokeVariant[1].bstrVal = itemStr; 1 _0 {5 W: c; J) c7 T1 Q: f" n% X" R1 g2 s
topicStr = SysAllocString((WCHAR *) L"system");- F+ v) I) r V, Y
VariantInit(&pokeVariant[2]); . P' v9 j0 j" T% g/ @6 {
pokeVariant[2].vt = VT_BSTR; ' v l; S/ `' X) O. U' E pokeVariant[2].bstrVal = topicStr;* {2 V/ J {' |
; l! P/ n! m! b$ {; W// Set the DISPPARAMS structure that holds the variant.8 O% V" _6 `9 w/ q0 F; j
' x9 M+ E: H% _6 R+ m dp.rgvarg = pokeVariant;$ ?' x" e+ |+ S! l/ |3 O7 p8 u
dp.cArgs = 3; ) a! v( y6 V" _- _& l dp.rgdispidNamedArgs = NULL; 2 q6 R$ Y! f& \% g# Y1 f, m! r4 v dp.cNamedArgs = 0;8 C9 W1 y/ z" o/ M! e/ y) [
2 Y/ ?6 [; M# `
// Call IDispatch::Invoke() : f9 x4 M& d1 b2 l! {3 O" ~4 c 1 P1 F4 J! e O8 \) M hr = m_pDisp->Invoke(; l N+ r2 ~! O; u2 ~) Q
pokeID, 0 Z. I, V' o& Q, p IID_NULL,9 L9 A% i, j0 D/ Y
LOCALE_SYSTEM_DEFAULT,3 Q! P9 u6 V& x p
DISPATCH_METHOD, ~1 J8 z0 P9 ^1 {4 ]& O; N8 ?
&dp,6 \3 |8 e7 ^( Z5 E
NULL,# I+ y! p% U1 [: \6 b' Z2 Z8 d
&ei,/ x5 K( y9 M2 F+ \& j* z. \- p
&uiErr);- W# x& C8 e2 \
6 q4 s* }* p8 S$ }, M SysFreeString(topicStr); M" E6 z; V: @% [ SysFreeString(itemStr); * u0 y [( [: r3 W" x SysFreeString(valueStr);7 k2 k1 f# [* x) w- h0 V, i
) q/ b5 P/ M9 ]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？？？8 O7 V* k1 H% W r1 ^2 c1 X
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？？？？ 1 L( x( v+ N& i 4 M2 N* a& G5 {, G! h/ I1 w . L5 B; O7 b9 p* Y; ]0 Z2.这是request的程序9 s( J" F% Z7 j
// Request a value from Extend ; |0 w6 R0 ?7 ^// ( B0 X. [6 `8 U* t// Initialize the variant that will hold the BSTR. Set the variant's/ Z+ x, V' q3 Q( ?( v, b
// type flag to indicate the fact that this variant holds a BSTR. Place the 8 G3 B$ k8 X! r+ N0 ]: v9 ~// BSTR into the variant structure. 9 Q/ z* e: _$ a' ~6 W; L3 b/ k ; P/ {1 z; _; {5 [; R requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);+ G+ D }# k/ @# }
2 e, `& g9 l6 k* l. ] itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : u6 `% F& _( n+ P6 _ VariantInit(&requestVariant[0]); 8 m7 I* V2 a7 a7 }4 ~+ @$ v% f
requestVariant[0].vt = VT_BSTR; 7 U% ?/ L; P! P! u requestVariant[0].bstrVal = itemStr; 3 x6 G$ x1 T9 H0 A, S, d0 E) M 4 B& h4 A' ^% y6 b; ]/ M topicStr = SysAllocString((WCHAR *) L"system");' @5 o" y1 c8 f3 ?( Y
VariantInit(&requestVariant[1]); . B9 |) T" [- M% Y+ Y
requestVariant[1].vt = VT_BSTR; 8 O. ?! o/ k* l% I/ @ requestVariant[1].bstrVal = topicStr;/ Q% T4 j1 U6 s3 j! Y4 S# _ S) O
: p$ x0 L2 i, [; y3 B: `
// Set the DISPPARAMS structure that holds the variant. ' c" V& F4 Y6 a9 c/ r, z3 A' x5 h9 x1 D) c, }/ Y; \- K% H
dp2.rgvarg = requestVariant; 0 i# D) z6 K# g3 K9 p4 u dp2.cArgs = 2;& \/ @4 P. i% L! A$ r
dp2.rgdispidNamedArgs = NULL; 0 U8 Q' L" f/ D" ^6 z3 b% B dp2.cNamedArgs = 0;1 G8 J% r$ G0 r/ |6 |" T; E* K
. C! N6 ^, ^7 s! z7 s var.vt = VT_EMPTY; 3 A$ x+ o/ w/ g" X1 N5 s- b . c; M* A9 f2 u/ {! ]- |- N+ h# d) h% Z// Call IDispatch::Invoke(): ]# U8 P. @0 P0 J+ ?" l/ ~
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hr = m_pDisp->Invoke(3 Y7 m- C5 L V( q" T
requestID,2 D" @! D" \$ w s6 w8 Q
IID_NULL, 4 }& |! u& u7 |7 Q$ [ LOCALE_SYSTEM_DEFAULT,7 Z. _2 h' h9 C9 Y
DISPATCH_METHOD,( c" B& i& U* T
&dp2,* {4 i! y* o; y; f& o& ]+ Z
&var, : p7 n$ z3 u8 m7 _" q$ |* ]9 ~ &ei, ; O, C( T/ [ i6 j; i! I &uiErr); ( A7 m7 x* ^$ [$ M # w; N% `" A' W, ?/ r: ]8 f SysFreeString(topicStr); 2 w; |# N* Z/ O/ H' ~/ P SysFreeString(itemStr);: S: J& m' }, s6 \- e6 ^7 X! k( o
请问该程序是获得extend里面的哪个值？. x! j: v- |1 L8 R
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
