| Subject | Howto pass an pointer to an array of structure objects | ||||||||||||
| From | Jannik Renseler | ||||||||||||
| Date | Wed, 01 Jul 2009 02:50:07 -0700 | ||||||||||||
| Newsgroups | ot4xb.public | ||||||||||||
| Attachment(s) | Unnamed File 1 | ||||||||||||
Hello, thank you Pablo for these nice tools. They are very helpful. But I have a big problem accessing an dll function. I have to pass an pointer to an array of structure objects to the function and don't know how I can do that. /* original strukturdefinition in c++ typedef struct __CMENTRYDATA { CMULONG mflCtrl; CMULONG mflDependency; CMULONG mulReserve; CMUINT mcbData; CMBYTE mabData[2 * CM_MAX_STRING_LEN]; } CMENTRYDATA; */ * my Xbasedefinition BEGIN STRUCTURE _CMENTRYDATA MEMBER ULONG mflCtrl MEMBER ULONG mflDependency MEMBER ULONG mulReserve MEMBER U_INT32 mcbData MEMBER BINSTR mabData SIZE 512 END STRUCTURE /* original function deklaration in C++ int CMAPIENTRY CmGetInfo(HCMSysEntry hcmse, CMULONG flCtrl, void *pvDest , CMUINT cbDest) */ * my Xbasedekleration * CmGetInfo DLL "WibuCm32.DLL" IMPORT CmGetInfo AS INT ; PARAM hcmse AS POINTER32 , ; PARAM flCtrl AS ULONG , ; PARAM pvDest AS POINTER32 , ; PARAM cbDest AS UINT *** example Call in C++ ***************************************** *** in pCmBoxEntry (third parameter) they pass an pointer to an array of the structure *** _CMENTRYDATA CMENTRYDATA *pCmBoxEntry; pCmBoxEntry = (CMENTRYDATA *)malloc(size); res = CmGetInfo(hcmEntry, CM_GEI_ENTRYDATA, pCmBoxEntry, size); ********************************************************************** How can I do these in Xbase ? *** my try in Xbase *************************************************************** * build Instance of structure scCMEntryData := _CMENTRYDATA():new() * getting Entrys ( hcmEntry is an handle that I requested further) nRes := CmGetInfo( hcmEntry, CM_GEI_ENTRYDATA, @scCMEntryData, nSize) *************************************************************************************** Thank you for your help. Best regards , Jannik Renseler | |||||||||||||
thank you Pablo for these nice tools. They are very helpful. But I have a big problem accessing an dll function. I have to pass an pointer to an array of structure objects to the function and don't know how I can do that. /* original strukturdefinition in c++ typedef struct __CMENTRYDATA { CMULONG mflCtrl; CMULONG mflDependency; CMULONG mulReserve; CMUINT mcbData; CMBYTE mabData[2 * CM_MAX_STRING_LEN]; } CMENTRYDATA; */ * my Xbasedefinition BEGIN STRUCTURE _CMENTRYDATA MEMBER ULONG mflCtrl MEMBER ULONG mflDependency MEMBER ULONG mulReserve MEMBER U_INT32 mcbData MEMBER BINSTR mabData SIZE 512 END STRUCTURE /* original function deklaration in C++ int CMAPIENTRY CmGetInfo(HCMSysEntry hcmse, CMULONG flCtrl, void *pvDest, CMUINT cbDest) */ * my Xbasedekleration * CmGetInfo DLL "WibuCm32.DLL" IMPORT CmGetInfo AS INT ; PARAM hcmse AS POINTER32 , ; PARAM flCtrl AS ULONG , ; PARAM pvDest AS POINTER32 , ; PARAM cbDest AS UINT *** example Call in C++ ***************************************** *** in pCmBoxEntry (third parameter) they pass an pointer to an array of the structure *** _CMENTRYDATA CMENTRYDATA *pCmBoxEntry; pCmBoxEntry = (CMENTRYDATA *)malloc(size); res = CmGetInfo(hcmEntry, CM_GEI_ENTRYDATA, pCmBoxEntry, size); **********************************************************************How can I do these in Xbase ? *** my try in Xbase *************************************************************** * build Instance of structure scCMEntryData := _CMENTRYDATA():new() * getting Entrys ( hcmEntry is an handle that I requested further) nRes := CmGetInfo( hcmEntry, CM_GEI_ENTRYDATA, @scCMEntryData, nSize) *************************************************************************************** Thank you for your help. Best regards , Jannik Renseler | |||||||||||||
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Howto pass an pointer to an array of structure objects (Current message)
