[PB4.50 x86 Beta 1] different types in StructureUnion

[mpz]

Hi,

i use different types in StructurUnions for DX9, but this works no more. Here comes an example from the help file. Any solution for it or other kind of structure type for that ?

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  Structure Type
    Name$
    StructureUnion
      Long.l      ; Jedes Feld (Long, Float und String) befinden sich
      Float.f     ; an derselben Stelle im Speicher.
      String.s    ;
    EndStructureUnion
  EndStructure

best regards,
Michael

[Fred]

Use a pointer for the string. This kind of structure could produce massive leak.

[mpz]

Hello Fred,

i have a DX8 Structure DIACTION for my IDirectInputDevice8 (for my DX9 lib with forcefeedback Joystick an so on)

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typedef struct _DIACTION {
    UINT_PTR    uAppData;
    DWORD       dwSemantic;
    DWORD       dwFlags;
    union {
        LPCTSTR lptszActionName;
        UINT    uResIdString;
    };
    GUID        guidInstance;
    DWORD       dwObjID;
    DWORD       dwHow;
} DIACTION, *LPDIACTION;
 
typedef const DIACTION *LPCDIACTION;

and the PB translation was :
PB Structure

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  Structure DIACTION
    uAppData.l
    dwSemantic.l
    dwFlags.l
    StructureUnion
      *lptszActionName.l ;unicode?
      uResIdString.l
    EndStructureUnion
    uidInstance.GUID
    dwObjID.l
    dwHow.l
  EndStructure

but this works anymore. You say i can only use Pointer in the StructureUnion ?

How can i mak a working PB translation of the DIACTION Structure? Thanks for your help...

best regards
Michael

[Fred]

Your new structure looks correct. Use PeekS() get the string content:

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PeekS(YourStruct\*lptszActionName)

[Xombie]

Does the pointer in structure thing only work in 4.50 and not 4.41?

[Demivec]

Does the pointer in structure thing only work in 4.50 and not 4.41?

No it has worked at least as far back as v4.

The example Fred gave contained a typo, it should have left off the '*' when it was used.

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PeekS(YourStruct\lptszActionName)

The '*' is used in the structure when defining it but is left off when referencing the structure element.