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：. e. r0 i5 k1 ?7 `7 K8 s
Name = (WCHAR *) L"Poke"; ' G, x W( K' x- W# U ( F: q4 J) l0 E
hr = m_pDisp->GetIDsOfNames (/ e1 P4 s2 X8 f: b. t. Y5 t, ]
IID_NULL, // reserved 6 k! J) v, {* r# z9 B &Name, // Array of names to get IDs for 2 h9 T! c. G1 f/ R& l8 J* ` 1, // # of names in the array- y0 t1 J& g' M# _
LOCALE_SYSTEM_DEFAULT, // System locale, m7 }- v! l! U
&pokeID); // Array of IDs to fill on output 4 s; |0 @8 N; q* P" `# J5 X. m , ~9 Y. G8 C9 d2 s5 @ if (hr)1 O1 P" F: j" @( S4 i* Y- k5 _
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MessageBox ("Get Poke Unsuccessful"); / ?9 D( d+ v0 `: V return;$ f$ c j8 k" I% R5 D) D! m
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/**************************传递数据给extend**************************************/! E8 o) G+ z, j# M) t
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);; B2 f% q6 j z
% ?9 l6 v+ Y! p" o9 `& m valueStr = SysAllocString((WCHAR *) L"1232"); 3 q& ~3 ]% L' q- P VariantInit(&pokeVariant[0]); + g7 U. O: H7 \9 {
pokeVariant[0].vt = VT_BSTR;) B+ s) c1 v/ A' f D, Z9 J
pokeVariant[0].bstrVal = valueStr; + w. u( w B, a2 {1 i. }* u' q5 c/ m& \# n5 U2 ]! ?2 a
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 d6 T4 P0 Z& u* Y, n: f- }3 ~1 L
VariantInit(&pokeVariant[1]); , o3 q$ r4 r( N1 N3 _2 d& t pokeVariant[1].vt = VT_BSTR; U$ X- l4 S O5 Y# ~
pokeVariant[1].bstrVal = itemStr;7 ~ X( q9 P1 U8 d( i0 G
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topicStr = SysAllocString((WCHAR *) L"system"); 5 f p- A" V7 d/ ^2 \* N( B VariantInit(&pokeVariant[2]); 9 i' q8 [+ i0 F( i/ [( d pokeVariant[2].vt = VT_BSTR;( ^+ X, f! j# o1 n
pokeVariant[2].bstrVal = topicStr; / P) n& P' v# L# Z& |/ o 9 `+ E; P# M! g7 A0 _' r1 Q z// Set the DISPPARAMS structure that holds the variant.. r$ [0 @9 L" K0 B9 Q$ m# D. B
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dp.rgvarg = pokeVariant;9 [# d! b; D+ x1 e. Q) z
dp.cArgs = 3; + U+ @1 W* l, v- C) N( ^ dp.rgdispidNamedArgs = NULL; 8 N) t/ L' {/ x8 z dp.cNamedArgs = 0; + b! k* f/ b4 e. _9 I+ H9 I2 P* X& G* J" @! D
// Call IDispatch::Invoke()% ^: W! R8 a H2 W. z. V6 n
1 x( Z& J a0 z hr = m_pDisp->Invoke(' Y* t$ h2 @+ l7 j" D# @. A
pokeID,7 F' x! [6 Z/ S% K. W5 `1 g
IID_NULL, ( t1 D- i k) v% d. f! O LOCALE_SYSTEM_DEFAULT, - i7 g" a" a) s9 X" |! R$ w2 e6 r DISPATCH_METHOD,$ u7 U9 T, B& |, R4 a7 L3 G: g
&dp,) o6 d9 Z* a: {! j' m+ E$ z8 l3 k
NULL,; R0 m( S+ N7 Q9 \* f% V
&ei, ' m9 u2 ~2 ~4 u &uiErr); ! L" ?8 k- ?4 s& g! C: o% l8 }! K0 X" i% } s" r# [; y1 `
SysFreeString(topicStr);2 T6 g# b0 f ?9 G( |
SysFreeString(itemStr);. W1 v! n: x9 A+ f/ R" Z
SysFreeString(valueStr); : e5 }1 D& R) l + D. N1 o8 v" Z9 B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？？？1 M+ ^, X* i3 V. m% F4 E W
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？？？？9 R# r) V2 ]# l. a
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2.这是request的程序/ s7 N$ m2 z! x s3 y! o, u" I
// Request a value from Extend 3 O# n0 D" J8 o6 W+ A. i: ?1 w// 9 ?5 {# N. s" W C& Q// Initialize the variant that will hold the BSTR. Set the variant's : e+ g9 Z6 b1 u2 {/ V; l// type flag to indicate the fact that this variant holds a BSTR. Place the ' s8 O1 u# L- G% l% z// BSTR into the variant structure.8 e o' t( d) K a% d! W0 t
6 G& l9 }, t! t S+ }6 ~2 J1 A. N$ O requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);7 m$ Q. P9 J! P4 B/ L6 k6 v; L% d
: D C4 s. S* J( {0 y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( F7 U) d0 K# ]/ Y9 Y+ r8 g# u VariantInit(&requestVariant[0]); ' q; {% \' H4 Y# s% | requestVariant[0].vt = VT_BSTR; 8 @3 Y% X8 C9 s: H9 y' b3 J3 s requestVariant[0].bstrVal = itemStr; ( F9 l" a _- _* Y" t9 \; p* d8 v/ d q
topicStr = SysAllocString((WCHAR *) L"system"); ( t' V3 z! W5 f7 j3 G4 G: h VariantInit(&requestVariant[1]); 9 [3 p& R( i1 J w1 R* ^8 G; W; I
requestVariant[1].vt = VT_BSTR;0 n! R! _& `3 i8 H* l/ |" A4 G4 y
requestVariant[1].bstrVal = topicStr;# G6 d' Q0 U$ d6 s1 M/ f* H- n
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// Set the DISPPARAMS structure that holds the variant." T* O {$ R- @, ~. M* v5 \% [! ]: f
4 n! e! v6 n. ~5 M) _( |8 ~ dp2.rgvarg = requestVariant; $ u' p9 e6 x' Y) C! d1 { dp2.cArgs = 2; 1 A" a# [) m1 ]% }& @6 \5 H. |5 o dp2.rgdispidNamedArgs = NULL;5 b; C' d( g/ |. p Z! {0 W
dp2.cNamedArgs = 0;3 C( @% p1 j/ h% C' F7 o: t# u) x
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var.vt = VT_EMPTY; ' q$ q& `4 d# f1 i4 J, k7 U. s. p
// Call IDispatch::Invoke() 8 c: {( B/ C$ [1 E4 ^# p0 r' v
hr = m_pDisp->Invoke(. V( n v7 c- a, V
requestID, 8 a0 G8 l8 ~$ f9 e IID_NULL, ' t1 {' y" o* O! g$ v LOCALE_SYSTEM_DEFAULT, 3 V* P6 H( ~5 w DISPATCH_METHOD,0 ^, v/ Q4 l7 m% V& L
&dp2,2 S H# I8 {; L2 b$ `* Y
&var, 8 W7 p, f3 }6 r &ei,% r ~& y, Q, J3 y" Q1 w
&uiErr); $ W/ C2 l, \) {, @, v! D' M* J8 ]6 G5 E! M
SysFreeString(topicStr);2 o8 W& H% S9 m* d8 a$ p
SysFreeString(itemStr);7 n; N8 \& ~; j8 ]5 K1 P$ f, _
请问该程序是获得extend里面的哪个值？ . H c9 G {+ N% x* A/ k+ A0 W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
