5 仿真币
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:; Q# d! @" B( l
Name = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (
* P2 {$ d1 U: p IID_NULL, // reserved m) ]8 X, b6 X7 e8 H) V1 M
&Name, // Array of names to get IDs for
6 D7 J E4 a: u; ~' P& N0 b 1, // # of names in the array; ^4 S4 Y) V# w3 L; E- ]
LOCALE_SYSTEM_DEFAULT, // System locale
, H1 c7 w9 i. E &pokeID); // Array of IDs to fill on output
! I: p; ?- e; Y2 v1 e % Z7 ~5 k) y- z/ O
if (hr)
8 R5 D7 l- W" H3 \ {
* Z; w s% b, \ J MessageBox ("Get Poke Unsuccessful");
8 c/ ?6 H. R) o; C+ F% f% u6 d4 z return;5 B c% ~3 T- B
}
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; e' s1 x5 r$ U" p# \ /**************************传递数据给extend**************************************/
4 R( e5 F# h5 S$ k* l& D2 k; e pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
' k9 K9 l5 R, l
2 U$ p/ g1 r% a: v! K valueStr = SysAllocString((WCHAR *) L"1232");4 x- x, q8 i; X" z
VariantInit(&pokeVariant[0]); 4 L6 h9 X6 W3 F; e3 z0 ^/ d/ r
pokeVariant[0].vt = VT_BSTR;
) H& r0 U0 x* h# t* { pokeVariant[0].bstrVal = valueStr;$ \+ K+ A1 d3 O( O
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) @9 s4 b8 P- A9 C' w) U5 M
VariantInit(&pokeVariant[1]);
- Z6 c, a; Z# P) p! W8 \ pokeVariant[1].vt = VT_BSTR;2 Y/ K( p/ o' R/ F. m. d+ d
pokeVariant[1].bstrVal = itemStr;
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. T% K5 u( B: i( \8 _1 p0 n topicStr = SysAllocString((WCHAR *) L"system");8 K! ?; f% x8 T
VariantInit(&pokeVariant[2]); 1 c& V' t" z1 z6 j
pokeVariant[2].vt = VT_BSTR;
* R+ j. P2 W1 @! g' w6 T4 @9 h" G pokeVariant[2].bstrVal = topicStr;
0 l4 {# ?% g5 x6 f * }' ?0 z7 {7 w$ W! u' \% }
// Set the DISPPARAMS structure that holds the variant.4 i, P6 ]# W# H
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dp.rgvarg = pokeVariant;7 {4 M: g8 w4 |
dp.cArgs = 3;
! Q! w$ Q( ]% f3 m) G0 ]! J* \ dp.rgdispidNamedArgs = NULL;5 j5 N2 P; x/ {' r! U: e! s; q
dp.cNamedArgs = 0;1 S4 t( }6 H5 E& p) X' P d& u
3 @9 l5 A: T' F6 m; `/ z // Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
2 A$ W4 o& L" ?" r& R' L4 I pokeID,) L/ M( w* t8 Z5 f" n
IID_NULL,4 h7 |" S4 q1 y6 j0 f0 c
LOCALE_SYSTEM_DEFAULT,+ I# h# v E$ o- Q4 l
DISPATCH_METHOD,' e; s. b4 }4 U9 ]$ q
&dp,
$ S/ x" J& Y( b/ i NULL,1 Z! V2 n# d% P) h9 E/ \
&ei,
# G8 n8 [2 K1 L4 `9 y &uiErr);$ y3 J' O7 h9 U, z D
# P& L5 E+ G u7 X z" | SysFreeString(topicStr);/ o& p( k# i( S' j( E0 p M
SysFreeString(itemStr);
8 u j3 S% ~9 q# m# Q SysFreeString(valueStr);3 ~* w5 f0 {! Q i+ W
- z1 }- X& A# ~! A) _" D 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???3 D4 K3 G2 J4 R" C* Q+ H
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????6 m2 ]) c* j9 `
, Y5 `0 [- \5 v# ] 7 j0 V# e/ M' ]% [" w: q4 ]* _
2.这是request的程序3 z; `' q$ ^$ C5 B) m
// Request a value from Extend
2 Z ?, l+ m3 H //
5 B1 V2 q1 ]% p) a4 X // Initialize the variant that will hold the BSTR. Set the variant's
" F m$ i: @! C3 B8 r // type flag to indicate the fact that this variant holds a BSTR. Place the( N0 j, {/ B! r6 C9 E2 S
// BSTR into the variant structure.) @2 O U% a8 D
u+ E$ ^1 a* W8 U; J: j7 l3 H" x requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
3 x) B4 ~- }3 E+ C; F" c+ m
% s7 B5 ~+ @& |" S4 V: f: [ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" R, A9 r1 V6 I+ ~4 I9 x' Y7 J6 S
VariantInit(&requestVariant[0]); , a x5 K" ? @
requestVariant[0].vt = VT_BSTR;
* A7 o/ S5 j1 |% K3 c2 v3 Y0 I# K requestVariant[0].bstrVal = itemStr;
* b. o# @) J" ^% c; P0 T. I
- e+ {0 R1 Y) i% q% l) G* v5 r topicStr = SysAllocString((WCHAR *) L"system");1 _& Y: e8 K4 t& {
VariantInit(&requestVariant[1]); S( d7 s$ o% u7 P3 q
requestVariant[1].vt = VT_BSTR;
b/ a5 d2 H: q requestVariant[1].bstrVal = topicStr;- B; ~: _- O4 W% q+ h# U5 p# U
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// Set the DISPPARAMS structure that holds the variant.# k9 x% p/ ?8 p/ e8 D, y! ~
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dp2.rgvarg = requestVariant;2 O* r9 J5 Y o1 q
dp2.cArgs = 2;8 i/ B% E0 |( i& G# X$ q
dp2.rgdispidNamedArgs = NULL;% u' P2 d5 j* \( Y5 z) p/ I: U
dp2.cNamedArgs = 0;0 F& U) g) W- |8 b; I4 Y
/ P3 b0 F G) X4 A" \$ g2 d) [/ z var.vt = VT_EMPTY; e( ~- E( p+ v; Y/ a
+ R$ J1 g, J- y; ] // Call IDispatch::Invoke()
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hr = m_pDisp->Invoke($ r2 G* r! O2 d9 j& z! ?2 y- F; H
requestID,
. H8 z2 c! C: O+ { IID_NULL,& l# p5 V [5 L1 a/ G2 E7 F( K0 l
LOCALE_SYSTEM_DEFAULT,
l% g. W1 k2 L8 W DISPATCH_METHOD,
" h1 f' k7 |' x &dp2,* }" |. t' _0 Q# ^7 E
&var,
6 z: z2 @8 ^+ F &ei,3 J9 m9 j4 ]0 f$ i; S& w8 E7 a
&uiErr);
: i4 z' D W3 x3 E4 j% b
/ }/ x, Y* L- x7 z7 k3 ? SysFreeString(topicStr);; Y o% e4 w: y4 g7 G; W* B$ R3 a
SysFreeString(itemStr);1 ]; d& _! s3 ~# V) N
请问该程序是获得extend里面的哪个值?5 U0 i" f& F) [. L! M
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????
我来回答