> Hi everyone,
>
> This question is more a C question than GEOS. Here's what I have:
>
> typedef struct {
> char name[33];
> char moniker[129];
> char reserved[64];
> } GenObjectData;
>
> #define CLASS_DATA_SIZE 512 - ((3 * sizeof(VMBlockHandle)) +
> sizeof(GenObjectData) + 64) /* all on one line in source file */
> #define CLASS_DATA_OFFSET 512 - CLASS_DATA_SIZE
>
> typedef struct {
> VMBlockHandle VM_comp;
> VMBlockHandle VM_link;
> VMBlockHandle VM_lastchild;
> word objType;
> GenObjectData objData;
> char reserved[64];
> char classdata[CLASS_DATA_SIZE];
> } VMObject;
>
> (The structs are shortened a little to make it easier)
>
> /* inside MSG_GEN_DOCUMENT_INITIALIZE_DOCUMENT_FILE */
>
> VMBlockHandle mapBlock, primaryVMBlock;
> MemHandle maphandle, appHandle, appLMemHandle;
> MemHandle primaryHandle, primaryLMemHandle;
> appBlock *app;
> optr newitem;
> VMObject *objBlock;
>
> VMFileHandle file = pself->GDI_fileHandle;
> EC(ECVMCheckVMFile(file));
>
> mapBlock = VMAlloc(file, sizeof(mapblock /* <--- TYPO(?) */ ), 0);
> EC(ECVMCheckVMBlockHandle(file, mapBlock));
> VMSetMapBlock(file, mapBlock);
>
> map = VMLock(file, mapBlock, &maphandle);
>
> primaryVMBlock = VMAlloc(file, sizeof(VMObject), 0);
> EC(ECVMCheckVMBlockHandle(file, primaryVMBlock));
> objBlock = VMLock(file, primaryVMBlock, &primaryHandle);
> map->primaryVMH = primaryVMBlock; /*<---- */
/**** Again, where did this get defined? "primaryVMH" ****/
>
> /* removed initializing of other variables in the struct */
> strcpy(objBlock->objData.name, "Window");
> strcpy(objBlock->objData.moniker, "Main Window");
>
> VMDirty(primaryHandle);
> VMUnlock(primaryHandle);
>
> /* ... */
>
> /* Inside MSG_GEN_DOCUMENT_ATTACH_UI_TO_DOCUMENT */
>
> mapBlock = VMGetMapBlock(file);
> map = VMLock(file, mapBlock, &maphandle);
> primaryVMHandle = map->primaryVMH; /****Not defined ***/
> VMUnlock(maphandle);
>
> char name[33];
>
> primaryVM = VMLock(file, primaryVMHandle, &objHandle);
> strcpy(name, objBlock->objData.name);
> @call newitem::MSG_GEN_REPLACE_VIS_MONIKER_TEXT(name, VUM_NOW);
> VMUnlock(objHandle);
> /* also tried directly using the string from the vm file instead of
copying *
> /
>
> Basically, any time I try to get at the name or moniker it crashes. But if
I
> use a hex editor on the vmfile created, I can see that it did copy the
> strings into the file. So what's the correct way to get pointers to the
> strings I'm using?
>
> (Couldn't find an answer in a C book)
>
Check out the points above that I marked...I'm surprized that the compiler
didn't give you complaints about these undefined variable names. You need to
check your spelling and variable names when you get these errors...and if you
didn't get them, why not? If you did, why did you ignore them? I am
presuming that you copied and pasted the above text..so it should be the same
that is in your code.
Lee