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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：. Q- v- [- a" d9 m+ q0 ?: f
Name = (WCHAR *) L"Poke";
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' j0 a4 u n$ @+ M hr = m_pDisp->GetIDsOfNames (
4 S+ l1 x0 O3 C( n IID_NULL, // reserved3 s' b1 M" B) @; }( ^5 D
&Name, // Array of names to get IDs for
) A0 |" P {0 C3 G& s 1, // # of names in the array
3 R4 J; ?& s- I) r/ L& q# Z LOCALE_SYSTEM_DEFAULT, // System locale9 T8 a! S" i+ g* @5 a9 M
&pokeID); // Array of IDs to fill on output
3 g' d ^2 m% z/ E9 V3 @7 {! n5 C; p / b. w2 t* q1 g$ V/ N6 E- x
if (hr); a, s4 x4 b) x* h
{
2 n. G y5 W. o/ x7 m MessageBox ("Get Poke Unsuccessful");) p; i' _, R/ {, i; D h; k1 _& C
return;
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# o6 t8 ?" n+ H. B! u9 c
/**************************传递数据给extend**************************************/
% E+ Y2 r9 B4 A* E1 K pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);1 ]9 a/ y" h" M' a
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valueStr = SysAllocString((WCHAR *) L"1232");
5 l5 V5 j* M+ ~5 B VariantInit(&pokeVariant[0]);
1 \5 q( E0 e% Z0 c4 j B$ v/ u pokeVariant[0].vt = VT_BSTR;4 X* @8 z% J. s( C- L4 `
pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
9 O4 ?8 u8 D$ f7 ` VariantInit(&pokeVariant[1]); & [6 h# y9 R7 a6 B/ A. K+ _4 C
pokeVariant[1].vt = VT_BSTR;
! d" a4 T" J1 ? pokeVariant[1].bstrVal = itemStr;
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8 V8 Y7 w' ?, G4 a3 \" d topicStr = SysAllocString((WCHAR *) L"system");
4 ^9 s5 w1 j* [ VariantInit(&pokeVariant[2]);
% ^& j7 s8 ~9 k) e( Q3 K- g& W( c9 Y pokeVariant[2].vt = VT_BSTR;9 n; L! `$ j9 z& d( g
pokeVariant[2].bstrVal = topicStr;
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$ a1 v* U- O: `! i4 i// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;! W* n) g7 b4 B5 U+ q
dp.cArgs = 3;# R: [! s! j( q% z/ W4 c
dp.rgdispidNamedArgs = NULL;
& X% v9 C6 }$ j3 q, x0 \( Y# I9 g dp.cNamedArgs = 0;8 f* W7 m: M% C1 I+ }
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// Call IDispatch::Invoke(). H1 f$ @( V5 z: ^: ^! _. `
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hr = m_pDisp->Invoke(
1 E+ M! l1 l5 l1 @ pokeID,* W# j) v0 |! V- S1 e8 h' Z
IID_NULL,: I5 ~8 K* L2 ~- D: ~
LOCALE_SYSTEM_DEFAULT,- ?4 [/ r, z( x4 h S
DISPATCH_METHOD," v: `$ i) D- b+ Q
&dp,
' a `. l5 q: p6 L# z NULL,! s6 e0 c! s6 _, Z' G, F
&ei,
1 w" N2 `+ G0 c( t% ]( L) P; m6 d" I U &uiErr);% m9 g. ?! S& V. C9 X
9 i- F$ Q& n; j4 a+ K, t SysFreeString(topicStr);) D: `% n/ l( b
SysFreeString(itemStr);2 k; R& v6 Y# P
SysFreeString(valueStr);- T& ~% E+ C# s- g- g1 f
# \5 X% _: E# T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？？？* R/ w/ o+ a8 r: v0 T/ P2 R 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？？？？! \! t6 x- `: ?) A1 A+ _, O2 g
2 x x2 O" L8 n; t
& A) ?# t; M* z! Q4 n- T1 S4 |2.这是request的程序
1 g; } H7 r3 q8 V// Request a value from Extend
! p: a7 d5 X: P1 a//7 a% \% [2 h5 w" [
// Initialize the variant that will hold the BSTR. Set the variant's
7 [( Z6 R6 T- m7 X8 B- V& n# X1 x// type flag to indicate the fact that this variant holds a BSTR. Place the
. ?# m6 B; R# G/ J) y0 T* o// BSTR into the variant structure.
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7 X! }- D# {8 m3 O0 k1 O% j3 @; k requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);( d; |; W; _. S5 O! s; j
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
5 }. f8 W) Z* k% C+ o% ~/ F VariantInit(&requestVariant[0]); 1 X: M; {& M& [: u" t, s f
requestVariant[0].vt = VT_BSTR;, V" L1 [5 R, O) D
requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
4 E, ^5 T1 X: E! P; j/ c( c VariantInit(&requestVariant[1]); # L% I5 `7 T! m& S5 Z
requestVariant[1].vt = VT_BSTR;: T5 q5 K1 _$ K) S' O
requestVariant[1].bstrVal = topicStr;& j- L3 X; ]# b
$ s3 L( Y1 s# P# j/ [) M, ^// Set the DISPPARAMS structure that holds the variant.
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& S; \0 f' e7 j. J4 e) ~ dp2.rgvarg = requestVariant;/ e3 w: P8 v1 o& ~+ H0 D; |
dp2.cArgs = 2;
3 e0 W9 W; |; b+ \, @: P8 O dp2.rgdispidNamedArgs = NULL;
0 I- f4 ^$ B) V/ B8 U dp2.cNamedArgs = 0;
# _; j3 U3 V' x- f& u! @' i3 d! m: s- h0 d0 Z* O. _5 C, u
var.vt = VT_EMPTY;5 J5 Q6 K5 Z0 W7 M. L
5 b% F; O* G5 _1 z h// Call IDispatch::Invoke()# g R6 P8 K% u
+ k! k! Z. I0 M6 R hr = m_pDisp->Invoke(3 Y4 s: F. [, y8 O# o4 Z) o
requestID,% k7 m+ x* m. _7 N8 j; D
IID_NULL,
. ]0 b# g( v$ ^7 @ s3 `! K LOCALE_SYSTEM_DEFAULT,- I$ e3 n% F6 Y' Q2 t
DISPATCH_METHOD,
0 ^/ t4 g! ?; c" ~0 Q: H &dp2,
, {' \+ ?( \2 z- }; F* N X! I& N6 g &var,
4 H" V- _+ C, Q &ei,( E% Y- Y& P$ J! s" l( F7 D! T9 f
&uiErr);5 @$ C! o" o6 m2 g& [
$ M; g' `0 K* h* d3 i
SysFreeString(topicStr);0 V) Q3 L) \ M7 N7 N0 m6 n& a
SysFreeString(itemStr);
; e1 m6 n1 l% t- C: G: s$ @6 G( b请问该程序是获得extend里面的哪个值？
1 I4 Z* W9 N2 N1 g9 |" x; G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
