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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：
; W. ?$ J3 E* D. m$ |Name = (WCHAR *) L"Poke";9 X+ I) z: a1 V1 i* @5 ?* }$ g
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hr = m_pDisp->GetIDsOfNames (" g2 s! L; w; S4 ^/ Y% O
IID_NULL, // reserved7 d. |, Z4 r: W5 G" \
&Name, // Array of names to get IDs for
+ j, m6 y2 I, K/ P 1, // # of names in the array, s. L: q/ d7 O
LOCALE_SYSTEM_DEFAULT, // System locale
5 e+ U9 k# E& T* ?1 f) Y7 C &pokeID); // Array of IDs to fill on output
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- O- B+ j0 S5 ] s1 m! N, y4 z a1 @ if (hr)
+ ^5 Q- Y; D- h- o {: n! Q- R5 N: A+ e
MessageBox ("Get Poke Unsuccessful");. h2 D, B# G0 N k
return;
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h6 s$ y- V9 d( b, O) t/**************************传递数据给extend**************************************/
, a3 Y( i" _, X8 q pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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valueStr = SysAllocString((WCHAR *) L"1232");- j' f6 f/ ]- V
VariantInit(&pokeVariant[0]);
0 q+ u, s/ F. J pokeVariant[0].vt = VT_BSTR;5 s/ p% @, [+ T- r/ H1 l, g$ v/ ]
pokeVariant[0].bstrVal = valueStr;( T" `8 i5 K5 y1 P
: {) e4 M+ m/ m6 ~ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" B% z( I) P/ I' M' {
VariantInit(&pokeVariant[1]);
% E9 Z1 y5 K: o- ^+ t pokeVariant[1].vt = VT_BSTR;, c# L$ e' P9 Q2 M+ p; |
pokeVariant[1].bstrVal = itemStr;
- H5 X% L# {1 }$ n8 x1 H6 C0 z+ e% U3 R2 ^6 }" ?
topicStr = SysAllocString((WCHAR *) L"system");
4 e5 G, ]/ {* |, D/ _+ ~4 M: J' w5 e VariantInit(&pokeVariant[2]); 0 H4 x5 C& E+ m/ J' x
pokeVariant[2].vt = VT_BSTR;
d6 D* y0 C6 O. _7 \ pokeVariant[2].bstrVal = topicStr;. Y; ~* s* D! p d; Z2 ?
4 @+ I3 o- x% Y( a/ R) d// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;
6 _; e4 B$ q% L- S dp.cArgs = 3;
' Q. [' p& Y! `, D dp.rgdispidNamedArgs = NULL;
7 K- Y5 p; g5 [$ Q2 [$ N dp.cNamedArgs = 0;
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// Call IDispatch::Invoke(); H" K" @& ~3 b( s- Y& r0 \
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hr = m_pDisp->Invoke(
! |/ e: @$ t' ~/ [ pokeID," U: F3 c9 L' k. \
IID_NULL,, B( A# O+ q. g r- [, T
LOCALE_SYSTEM_DEFAULT,
. k& c+ n# k* U9 _2 m+ P DISPATCH_METHOD,$ h$ K6 ^. u9 k8 G: I3 U
&dp,* G: G( N) c: _- s m
NULL,
8 U) q k p; | X3 H H# S &ei,
' i: B; q, v- L) R &uiErr);1 K: O. q( I, K$ b& Y. ]
4 `9 H5 r/ \- [ SysFreeString(topicStr);
+ Y0 T4 \& R7 b7 ? ] S( r1 h* J# R) t SysFreeString(itemStr);
y8 T) \& c* a$ ~ SysFreeString(valueStr);( e) ]2 C. y6 P% `/ n9 u
+ R" t3 w4 ]4 W v' 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？？？
* ?0 {" E2 ]+ v5 G4 Q S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？？？？
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2.这是request的程序 [0 m' H" \, Y1 K; y' K
// Request a value from Extend
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// Initialize the variant that will hold the BSTR. Set the variant's- {! q3 m- _5 x" b# @' U: E' |
// type flag to indicate the fact that this variant holds a BSTR. Place the
) H. t+ `, I/ J3 ]% N// BSTR into the variant structure.. Y+ O/ t3 b- {9 Y4 L. B
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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9 ]( C m; ~+ @5 Q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 p4 a1 @% W. [( g0 K3 q' s9 {" m
VariantInit(&requestVariant[0]); / S; e- t; n1 o8 j4 W9 {
requestVariant[0].vt = VT_BSTR;
& ?* P( \: t5 V5 s: R7 k requestVariant[0].bstrVal = itemStr;
& c J* w Q3 U# l7 P6 J6 o4 m( p
~) t# M9 `0 N! j topicStr = SysAllocString((WCHAR *) L"system");" m; N3 ?% |$ @9 y: G1 b7 K. p
VariantInit(&requestVariant[1]);
; g# h3 V9 v# i4 ~- Q requestVariant[1].vt = VT_BSTR;, o3 g7 F& t9 t/ i& W% F% j
requestVariant[1].bstrVal = topicStr;
& p; S, D4 H1 \' f0 s
7 G! b0 o H$ @! z& W# a; \' v; S// Set the DISPPARAMS structure that holds the variant.
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dp2.rgvarg = requestVariant;* }- c" c; W! M/ C6 W
dp2.cArgs = 2;
% w" d7 x% o& c% `; U1 w dp2.rgdispidNamedArgs = NULL;3 N' M2 g8 _3 z* F2 b' C
dp2.cNamedArgs = 0;
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+ Z7 m8 j2 k$ F0 F var.vt = VT_EMPTY;
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$ x0 U, Z# @. E9 k# K& i// Call IDispatch::Invoke()3 g% `0 ]9 S$ t' P; ~
2 X$ {3 l- N: i8 A' L- A1 I hr = m_pDisp->Invoke(
- u. }2 M' a8 T0 y+ V2 h requestID,) D+ Z% I" y, V% C. C: M: h- W
IID_NULL,. _- t. G& i) W8 v, b- X0 p
LOCALE_SYSTEM_DEFAULT,
- e" b* ^2 S. ?5 t4 y( Z w DISPATCH_METHOD,
1 n) M; i- |2 }) y" @% J( _ &dp2,2 T6 H% E# p0 W9 k. _
&var,. {) x% V/ F4 D# ]
&ei,
# D7 |3 j H: P5 @ &uiErr);
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SysFreeString(topicStr);. s% I3 d) _: y
SysFreeString(itemStr);# d M$ J; L+ ~' E7 n4 f
请问该程序是获得extend里面的哪个值？7 w. f3 c2 G0 K% d
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？？？？ |
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发表于 2008-11-25 19:37:03
