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* w3 O8 v6 G" A3 P+ [" K
Name = (WCHAR *) L"Poke";. w/ ~, c$ x1 s3 E! g
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hr = m_pDisp->GetIDsOfNames ( , B {8 ] L* E. K/ ^" p IID_NULL, // reserved # k' l7 `: M4 J &Name, // Array of names to get IDs for Q' j0 T0 ~: z9 s7 I 1, // # of names in the array4 K% C% Y. P3 F+ x# r' m$ D
LOCALE_SYSTEM_DEFAULT, // System locale 9 Y8 v; v1 X% t. }# B- x &pokeID); // Array of IDs to fill on output# o5 f3 h; G# V7 q" {1 R
! q& g* L g5 k5 F* [ if (hr). d1 N$ t9 y* E+ d: v% Z/ c, \
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MessageBox ("Get Poke Unsuccessful");: u5 K4 ~; h# q: r" x% N
return;9 R- ~' E# z, I, J2 i) D- f
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6 h7 ^2 ^" s: v. I itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% O: M" {5 z( ^" c0 i2 C& S
VariantInit(&pokeVariant[1]); * T) [# i9 g7 M% F0 d! R
pokeVariant[1].vt = VT_BSTR; 8 n- y) W k$ u* {) A0 u$ P pokeVariant[1].bstrVal = itemStr;5 v! H4 r& T: s2 V8 o' K3 N
- ]0 F2 B1 i5 v5 F; h& ~: M% C topicStr = SysAllocString((WCHAR *) L"system");8 S8 D8 y B2 E K
VariantInit(&pokeVariant[2]); ) R% t6 o! s7 v* `. k
pokeVariant[2].vt = VT_BSTR;- c' s B9 [. c; d4 ~. d7 \& w+ V7 m! G
pokeVariant[2].bstrVal = topicStr; ) O! d$ [/ r' a 7 t4 c2 D3 y0 E4 k- z, G- ?$ _// Set the DISPPARAMS structure that holds the variant. 0 ]; t! r6 u+ B s; C( M 1 O; \% U$ U& \ w/ j dp.rgvarg = pokeVariant;( b1 U# h. v- ?# `
dp.cArgs = 3; ! J! t5 ]7 W- z5 h3 D1 j6 T0 g dp.rgdispidNamedArgs = NULL;- l5 D q. {7 F' [- V# B
dp.cNamedArgs = 0;- Y( }% f3 G! }% g N
/ i; h% u- M; h. @3 U2 K// Call IDispatch::Invoke()" {" c4 p) `( N$ d5 Q& T3 N) K: j0 X
s6 M& |$ V% ] }( R6 @* s. o5 _ hr = m_pDisp->Invoke(3 O6 |: F8 I$ M) [! @8 s
pokeID,, P q4 _4 u; F) X
IID_NULL, 5 C8 |# N S" C' T8 m: I8 y! y8 p LOCALE_SYSTEM_DEFAULT,4 f* C* ] C6 N
DISPATCH_METHOD, : Z+ p0 s( v0 [1 b &dp, [$ A0 d' q& J1 j6 ~# c
NULL, # `% T# i; R7 `0 H+ ? &ei, $ w, }3 S9 M# k$ d# Q! S &uiErr);/ [9 V, b6 Y: m- T7 G3 b' l: N- k; D: P
* C9 o- a2 w) O( P SysFreeString(topicStr); 6 B5 U1 Q% y3 K: v. U2 w& d SysFreeString(itemStr);2 _9 R6 f4 L3 ]" n4 {1 @3 B
SysFreeString(valueStr); 6 d5 [3 a* k3 g* w& M4 ~6 K1 p. U2 q3 u2 O) c" u( @9 L2 x3 j" l9 v
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??? & @5 P+ R1 U$ N8 I0 V9 F; y9 O" m% R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 O d% [# k* `# G* Y, e6 F- h" X
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2.这是request的程序 5 B9 S1 S9 @* V/ n// Request a value from Extend 0 c* Z3 c6 k4 R" V// }6 {; [( J: }, {2 \4 V// Initialize the variant that will hold the BSTR. Set the variant's + N5 P3 |, T, q3 v$ C+ `// type flag to indicate the fact that this variant holds a BSTR. Place the2 K" J$ x' D5 m0 q5 D5 M! W) L
// BSTR into the variant structure. + b" F- L1 ]: c' @% l1 E! x8 C( o( N/ r
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);0 c$ Z% J- d) b
2 G' Q$ ^8 C6 d* _9 B itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 8 b; C& w7 F' [* V, N+ {1 o VariantInit(&requestVariant[0]); : m) g( n+ a* i; X I$ K requestVariant[0].vt = VT_BSTR; 7 C- ]' s& u6 \: r8 q) y requestVariant[0].bstrVal = itemStr; ' h0 X- N# ^9 X4 w * f* T; S! X! A/ v* G2 I topicStr = SysAllocString((WCHAR *) L"system");0 y) ]0 h) Q7 v
VariantInit(&requestVariant[1]); 9 R+ ~& V$ X4 ]2 g$ r
requestVariant[1].vt = VT_BSTR;, |2 f0 W* w( n! n
requestVariant[1].bstrVal = topicStr; 6 T8 A! M2 L8 C8 o7 ^, K7 T! ^9 Y' a4 f( ~# m
// Set the DISPPARAMS structure that holds the variant. , F& J: b6 s$ M# C* Q' [6 n0 L1 B& }3 y/ z# [; e& p
dp2.rgvarg = requestVariant; 4 y' |1 n8 W7 Q1 M# t1 v) j; d dp2.cArgs = 2;- b- y% A3 T6 |% l1 `
dp2.rgdispidNamedArgs = NULL;/ e P# q" m2 T' @0 U3 Y
dp2.cNamedArgs = 0;! L% F: L* W7 c; p6 M4 @
: U, Y; @, q+ H& b9 e8 a" E5 { {4 ~3 j var.vt = VT_EMPTY; # E b9 }! Z; ]2 R 1 ?& e3 Z" k$ N x) t; Y5 d// Call IDispatch::Invoke() $ b) _0 h# U- v: z0 w% X% C3 A: n& W# r/ Z' B
hr = m_pDisp->Invoke(7 J" X' n! M, R5 y! F
requestID, : ^; s9 U+ F6 V IID_NULL,, N6 ^0 y: v: }( L, [
LOCALE_SYSTEM_DEFAULT, & d. G( k. z/ X; u Y: N" R DISPATCH_METHOD,+ ]) Y0 J, o! j" Q
&dp2, & N) f* M: p, i& S) } c &var, : y5 ?& w3 ]; q) s' C" Z &ei, 0 L+ a1 l, g/ `/ k &uiErr); S2 e% Q. C4 Y7 d) x! u
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SysFreeString(topicStr); + y0 p% i- o4 T SysFreeString(itemStr); ' x. Y6 B4 I& W- h9 V& ]请问该程序是获得extend里面的哪个值?( P: J' F/ r* _* [) t; }& r z
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????