Declare integer MDC_AddScreenDrug In DLL_PASS4 String pcIndex, Int piOrderNo, String pcDrugUniqueCode, String pcDrugName, String pcDosePerTime,;
            String pcDoseUnit, String pcFrequency, String pcRouteCode, String pcRouteName, String pcStartTime,;
            String pcEndTime, String pcExecuteTime, String pcGroupTag, String pcIsTempDrug, String pcOrderType,;
            String pcDeptCode, String pcDeptName, String pcDoctorCode, String pcDoctorName, String pcRecipNo,;
            String pcNum, String pcNumUnit, String pcPurpose, String pcOprCode, String pcMediTime, String pcRemar    
        
        RETURN MDC_AddScreenDrug(pcIndex,piOrderNo,pcDrugUniqueCode,pcDrugName,pcDosePerTime,pcDoseUnit,pcFrequency,pcRouteCode,;
            pcRouteName,pcStartTime,pcEndTime,pcExecuteTime,pcGroupTag,pcIsTempDrug,pcOrderType,pcDeptCode,pcDeptName,;
            pcDoctorCode,pcDoctorName,pcRecipNo,pcNum,pcNumUnit,pcPurpose,pcOprCode,pcMediTime,pcRemark)

        调用API,提示参数太多。请问一下怎么回事?参数不能超多少？

对照了一下刚好，VFP传递参数的最大数目 26

那么怎么还是提示参数太多？

你那个是什么API函数，搞那么多参数。

第三方软件公司的

参数太多，就是：参数多

比如：DECLARE INTEGER FindWindow IN user32 参数1, 参数2

你这样调用：FindWindow(参数1, 参数2, 参数3)

就返回：参数太多

VFP传递参数的最大数目 26

但是在申明的时候，最多25个。。。26把参数太多

未试过用这么多参数的API，可以测试一下

测试了一下，API最多25个参数，VFP函数就26个

**    DLLIMPORT void test(
**        int* a,int* b,int* c,int* d,int* e,int* f,int* g,int* h,int* i,int* j,
**        int* k,int* l,int* m,int* n,int* o,int* p,int* q,int* r,int* s,int* t,
**        int* u,int* v,int* w,int* x,int* y,int* z)
**    {
**        *a=1, *b=2, *c=3, *d=4, *e=5, *f=6, *g=7, *h=8, *i=9, *j=10,*k=11,*l=12,*m=13;
**        *n=14,*o=15,*p=16,*q=17,*r=18,*s=19,*t=20,*u=21,*v=22,*w=23,*x=24,*y=25,*z=26;
**    }

DECLARE test IN test.dll ;
    long@,long@,long@,long@,long@,long@,long@,long@,long@,long@,;
    long@,long@,long@,long@,long@,long@,long@,long@,long@,long@,;
    long@,long@,long@,long@,long@,long@
    
STORE 0 TO a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z
test(@a,@b,@c,@d,@e,@f,@g,@h,@i,@j,@k,@l,@m,@n,@o,@p,@q,@r,@s,@t,@u,@v,@w,@x,@y,@z)
? a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z

测试了一下，VFP自定义函数最多27个参数

STORE 0 TO a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,aa
test2(@a,@b,@c,@d,@e,@f,@g,@h,@i,@j,@k,@l,@m,@n,@o,@p,@q,@r,@s,@t,@u,@v,@w,@x,@y,@z,@aa)
? a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,aa

FUNCTION test2(a1,b1,c1,d1,e1,f1,g1,h1,i1,j1,k1,l1,m1,n1,o1,p1,q1,r1,s1,t1,u1,v1,w1,x1,y1,z1,aa1)
    STORE 1 TO a1,b1,c1,d1,e1,f1,g1,h1,i1,j1,k1,l1,m1,n1,o1,p1,q1,r1,s1,t1,u1,v1,w1,x1,y1,z1,aa1
ENDFUNC