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: 0 U" d* N% S8 J: T" ]0 EName = (WCHAR *) L"Poke"; 7 Q' c9 I& p7 T/ m$ M0 Y' f9 F 9 X) P% N$ g& z$ \& D hr = m_pDisp->GetIDsOfNames (& P8 f2 A! K& P" f' [
IID_NULL, // reserved3 o" }7 r+ a( U) b+ F
&Name, // Array of names to get IDs for 8 D! y% Y0 h* f/ i5 \/ K! M 1, // # of names in the array8 g! c8 u, z. k( ~; u
LOCALE_SYSTEM_DEFAULT, // System locale ! q3 s* i$ E6 u# m% } P0 b" G6 s9 \ &pokeID); // Array of IDs to fill on output 9 i+ X0 }6 k! j% _' L& i( @ , i) ], Q4 N0 U! n" ]/ ^4 X9 O
if (hr)5 H# C: P1 }- f; K
{ & p) n" Z# v9 @* @! r0 i, A& T' l# f MessageBox ("Get Poke Unsuccessful");2 Q+ @2 ^4 l% Z% U" {0 s% u: a$ I% y
return;) k+ L, o1 `- n# n# e6 R" `5 r9 Y
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% X# r: ]* i: p* p& C ]7 h: n Q/**************************传递数据给extend**************************************/ $ W; t# T- n5 \$ ]4 l3 ]# j$ o pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);6 a, L, [9 K! F1 n/ T
/ x/ ~5 d6 ^6 a# R. x# z7 ~; Z$ m valueStr = SysAllocString((WCHAR *) L"1232"); , N7 \0 D0 |) H! v! d VariantInit(&pokeVariant[0]); $ W5 P& m$ K& P/ T0 R pokeVariant[0].vt = VT_BSTR; - F; I6 Q$ V. D8 |0 ?& { pokeVariant[0].bstrVal = valueStr; : l/ B& v3 d3 S ]" | / m; L) c+ ?! [: }1 I9 I itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 9 ~/ y& R+ A) p* X/ F& p VariantInit(&pokeVariant[1]); . ^' t+ _+ q* h; A G- x
pokeVariant[1].vt = VT_BSTR; x1 ~( l" W' {+ Q
pokeVariant[1].bstrVal = itemStr;0 ^% j2 H: G- a; D! y* N9 V
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topicStr = SysAllocString((WCHAR *) L"system");9 [3 d9 p) H3 f) o
VariantInit(&pokeVariant[2]); 2 a3 a$ ^6 Y, h7 O/ s- K. P7 z# V8 _ T
pokeVariant[2].vt = VT_BSTR;5 D+ e% e+ F8 {+ @6 X# o
pokeVariant[2].bstrVal = topicStr; 5 R5 W! Z3 }+ z7 @, w/ b! L6 l2 c" N# g5 _
// Set the DISPPARAMS structure that holds the variant. 4 |2 C& ]4 a. @& s9 v J& [& Q" Y6 l- Y, d; M$ q# o
dp.rgvarg = pokeVariant;, U# t, |( j) \5 r" k n" U1 W( I
dp.cArgs = 3; ' E& t# Y3 U: j dp.rgdispidNamedArgs = NULL; 0 k6 ^ J5 f6 ]6 ^2 Q1 ?9 w dp.cNamedArgs = 0; 7 K T# | v/ M* t& e( Z" n4 F, I6 ?# \
// Call IDispatch::Invoke() 9 a! |! U& v' T6 \4 X. i6 B7 s/ h. @6 U/ L9 d
hr = m_pDisp->Invoke( ~# S: S' j4 e" V) r' _ pokeID, : |' j; m) n0 o IID_NULL, 9 q' N) v3 O/ d% s$ l( G6 v LOCALE_SYSTEM_DEFAULT,6 O, s( Z/ l! v9 S$ t8 [
DISPATCH_METHOD,& [" t6 ]. c" d) J. |
&dp, 5 _# t; k9 `# M; ]6 V NULL, " J, u! V: ^4 m6 R: h0 ]8 y &ei, , q9 B- Z0 P9 b f &uiErr);$ d6 f5 \; M3 R* d
3 I" |! {! f( L2 j- m- J SysFreeString(topicStr); U: N& |* M) Q( l. @ SysFreeString(itemStr);; {6 F) z7 Y* C$ f0 ?% R
SysFreeString(valueStr);( O* w! S$ N! a
( D1 }! w: _+ ~* H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 I! b: J( ]& z e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???? + K X: Y+ Y* u, { o1 g ! {; h# s! b! z- x; `- y* C" ]0 i% y& ]2 x% K6 G4 R. I! \# w
2.这是request的程序9 A. W( G) k& A1 [& C$ m' l
// Request a value from Extend" _4 P, Q' F9 k+ X/ ~
//8 a P: l% ~5 q
// Initialize the variant that will hold the BSTR. Set the variant's ' @ ]# x+ b/ ]/ c# q9 s// type flag to indicate the fact that this variant holds a BSTR. Place the 5 k& {5 g/ C8 v! L3 y( m+ E) @$ c// BSTR into the variant structure.6 J; R. `! y! w
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);/ ^( _! S" y5 R2 w4 f% \8 |
2 { b8 ]- N6 U \ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( |& @$ v( G; X0 O3 H
VariantInit(&requestVariant[0]); 3 y$ {) G6 w' ? requestVariant[0].vt = VT_BSTR; 8 Q ~2 i' w4 r7 Y requestVariant[0].bstrVal = itemStr; + J, A ~) R, k/ ^: I& H5 p4 l6 \. o" u4 A% n/ J5 o% C4 O* R
topicStr = SysAllocString((WCHAR *) L"system"); 8 ?, w; _4 Q: L) m- _3 E- J VariantInit(&requestVariant[1]); ) {& P1 r- k- K; I& x
requestVariant[1].vt = VT_BSTR;( F' ^, d( @' g6 L4 l
requestVariant[1].bstrVal = topicStr; " Y' T4 b$ B$ Z5 a7 p' p! |1 n5 B# z9 K" i3 S5 O
// Set the DISPPARAMS structure that holds the variant. ! G0 W6 E3 s2 [& b! b 9 i; n# A Q) H7 H% L dp2.rgvarg = requestVariant;+ p0 D0 B( D* W. J1 b& H/ g
dp2.cArgs = 2;6 E' i/ ]$ B* O
dp2.rgdispidNamedArgs = NULL;% D8 \/ Q% r' E
dp2.cNamedArgs = 0; 9 K8 i& |( i) Z+ g6 T' B0 X e, I" J) ]! B0 C! {0 u$ ^ var.vt = VT_EMPTY;, O' q4 `2 h) T# t0 v1 I
% L. Y% o' w$ R0 Y. g; F- a6 Z// Call IDispatch::Invoke() ' A8 q" ^7 L0 C1 g' ]0 k/ q: q ?( X5 i( D5 f0 M3 M" y, ? hr = m_pDisp->Invoke(/ h- J, _* Y; b9 f8 D* K8 T
requestID,2 Y0 ]3 ]$ b+ x. m
IID_NULL, 8 {9 l) F( O% R. E ?- ~ LOCALE_SYSTEM_DEFAULT, : U& ~3 `$ N0 _: W. ~ DISPATCH_METHOD,4 [( G6 S% z* a( f
&dp2, ! v: w& Z3 M" k0 @3 ~: l5 ~4 o &var,* H4 D) T5 N: ?8 X( [" f
&ei,$ j t# @* D1 G
&uiErr); % h( [' n- H2 h: s s; E 3 Q; U$ t. X5 C8 \5 E/ m SysFreeString(topicStr);" d, Y, H2 |4 @' G
SysFreeString(itemStr);% ]% M4 G6 c! D% c
请问该程序是获得extend里面的哪个值?/ ]/ u# Z& y5 @
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????