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： : g' V% ]# w( o( _2 O# rName = (WCHAR *) L"Poke";7 y f% I8 }3 t. n) r9 X
7 o2 ?5 t1 U$ s3 a) y) q& h hr = m_pDisp->GetIDsOfNames ( 3 u" O2 c! b, [0 u: V( I0 Y1 o IID_NULL, // reserved 5 |; v1 R0 a9 F: ^2 x6 z2 u &Name, // Array of names to get IDs for: \1 O4 ?* c) \3 |$ K3 v
1, // # of names in the array. p7 u/ j$ g. ^* P7 }0 X" Y' n: v
LOCALE_SYSTEM_DEFAULT, // System locale 4 d0 F; T0 c3 k &pokeID); // Array of IDs to fill on output ; O7 |* F; p1 z" Z; m 5 N5 [9 e, t; V7 L1 ~+ w; ?7 c
if (hr) 7 Z+ i# W0 b, f, b. Z! c { 3 s/ e- O; _# P* y* l MessageBox ("Get Poke Unsuccessful");. H% J6 R7 g8 L2 [+ i: T/ s3 p
return; - r3 K$ p0 L: ` } k( A% k- R+ L& A
4 q- b! P% ~ K- a/**************************传递数据给extend**************************************/ - O! j3 h( v! H6 `: Y: g$ n pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 0 {) Q# `# n8 x+ z$ a1 u , d9 k7 ~( M, M* z& T
valueStr = SysAllocString((WCHAR *) L"1232");: l7 R2 T Q' H) }) `
VariantInit(&pokeVariant[0]); 0 I3 n9 m8 X$ G3 K* z
pokeVariant[0].vt = VT_BSTR;8 a" s' I7 S* a% M/ ~/ ^% P. J
pokeVariant[0].bstrVal = valueStr;0 L4 v6 S- M2 z$ a
, U Q; ]) i( y. p3 u itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 8 G! r4 }, ?* [: k VariantInit(&pokeVariant[1]); & Q! P3 V) v& u& r+ V
pokeVariant[1].vt = VT_BSTR; 5 H9 ^& |# D! Q2 w! h* M2 R* U pokeVariant[1].bstrVal = itemStr;4 ^1 A7 E; M% e# F/ D9 P
8 P0 p' D3 c4 Y1 W& o1 e topicStr = SysAllocString((WCHAR *) L"system"); 5 Y# F9 q" J! O7 G VariantInit(&pokeVariant[2]); 6 m1 ?* e5 b3 s( l# @
pokeVariant[2].vt = VT_BSTR; & y q3 D% j) a" X/ A pokeVariant[2].bstrVal = topicStr; * p0 P6 y- x2 A& h) ` # |) ^5 f3 n+ G, d+ M// Set the DISPPARAMS structure that holds the variant.; Y4 l8 q- S6 G& K4 O
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dp.rgvarg = pokeVariant;& [9 c; M4 p. T t6 A0 ?5 g
dp.cArgs = 3; 5 p, i* l1 X t4 J, H$ g dp.rgdispidNamedArgs = NULL;5 R9 B: u/ Y0 q5 x4 Y. N9 c
dp.cNamedArgs = 0;+ L' ~. E4 p2 Q8 E
& L6 B& f) N6 b// Call IDispatch::Invoke()8 I$ P! ]" U- j3 H5 f, w
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hr = m_pDisp->Invoke( ' E! i! M {7 w7 ~$ u1 f4 } pokeID,( F; A9 x$ V, F" p$ [0 t K( H
IID_NULL, ! L' K/ \6 {. A w1 {% \# i2 N LOCALE_SYSTEM_DEFAULT,6 \, q6 g% W: {, K5 R7 ?
DISPATCH_METHOD, , z. o K1 k0 u+ P9 M/ J" z &dp,- C/ } O, Q& R' U
NULL,# V) N/ s" E9 W* ]/ A
&ei,/ J$ {/ c6 s! N+ i
&uiErr);/ }2 t" N6 P9 {9 G. h$ C r4 M
5 b) P, |: v% Y. q4 u7 K2 @ SysFreeString(topicStr);+ S$ C3 |% b" u/ l
SysFreeString(itemStr);9 p+ S# P; @' _3 i- _! M; @
SysFreeString(valueStr);9 i" s* V5 t8 l$ }& Y
9 E+ H5 @- G8 Q* X
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 [7 M; C! Q9 A# l6 {
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？？？？) v5 l8 e. g" R/ D* o2 C: f
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2.这是request的程序/ x7 C" m, ? H7 ?
// Request a value from Extend + W# v! B* T% X" Z5 G0 J// & F- H6 L; u, G o, m, r- [// Initialize the variant that will hold the BSTR. Set the variant's 9 \ t9 L1 ]/ n1 f5 `3 J5 k// type flag to indicate the fact that this variant holds a BSTR. Place the5 `& ~( q7 s7 C
// BSTR into the variant structure." j/ N6 D- R/ c& @$ C
$ g3 e' m4 D$ h+ f) P requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); . u- _' F+ I- y& s- W# R# e & y+ |- L* S0 r- w# y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); h6 s/ F5 X. M' N
VariantInit(&requestVariant[0]); $ a4 ? m& |9 K, K requestVariant[0].vt = VT_BSTR;. ]& L; V7 V% o* J, j" |* X
requestVariant[0].bstrVal = itemStr;" a9 o% l+ t7 I; _
0 u7 a8 t6 n# b8 l! Z) V
topicStr = SysAllocString((WCHAR *) L"system");1 H% s5 X& c$ `+ j) R
VariantInit(&requestVariant[1]); 7 q; H3 w4 s9 m' R requestVariant[1].vt = VT_BSTR; ( I) a9 Q$ z. {7 c+ K3 n requestVariant[1].bstrVal = topicStr;1 y& E t+ I$ w, G; o% `0 D
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// Set the DISPPARAMS structure that holds the variant.; H" |: e5 Q2 i5 C, w
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dp2.rgvarg = requestVariant; 8 N9 y9 ?& X$ G Q, g' ] dp2.cArgs = 2; 2 a' {1 c( j* m, }8 R: G& w I, j7 Y dp2.rgdispidNamedArgs = NULL;3 P2 o( _2 d6 m4 L- y) s
dp2.cNamedArgs = 0;9 x% O, b9 @2 R# G
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var.vt = VT_EMPTY; ! \! R) E' i+ a# u7 A" N( X+ ]' } ' e; x; x6 e* l' F$ i- ]: n// Call IDispatch::Invoke() 3 S; C- o9 t" K9 G. d# }) P2 d: m& J) o4 A& ~
hr = m_pDisp->Invoke(; C6 Q2 L- S# K5 {
requestID,; B" s& y! K" | `# ?
IID_NULL, v' Q" _& R/ A LOCALE_SYSTEM_DEFAULT,; j( [8 h* d8 c3 c) b9 T5 L( L% b
DISPATCH_METHOD,( v9 C4 a" m3 ]: j9 \5 }4 K
&dp2, 5 V! a7 A# R# }2 {$ R% }5 Y+ F: ~ &var, / h# |/ `6 l8 Q. D+ b. ~ &ei,2 s# i1 h# B# O, m
&uiErr);& X% D1 u( X( p0 N, U
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SysFreeString(topicStr);6 x" Q, ?- d" A$ U
SysFreeString(itemStr); ' {. V# F6 x# n& ?. e请问该程序是获得extend里面的哪个值？2 G& b/ d9 M/ }! l
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
