DXIsBadWritePtr function
Verifies that the calling process has write access to the specified range of memory.
Syntax
BOOL DXIsBadWritePtr(
_In_ void *pMem,
_In_ UINT Size
);
Parameters
pMem [in]
A pointer to a write buffer.Size [in]
A value of type UINT that specifies the size of the write buffer.
Return value
Returns TRUE if the calling process has write access and the application is compiled as a debugging version, or FALSE otherwise.
Remarks
If the application is compiled as a debugging version and the calling process does not have write access to the specified range of memory, then the function causes an assertion and breaks into the debugger.
Combinations of two compiler directives, defining _DEBUG and defining DXTRANS_NOROBUST, determine whether this function has an effect at run time. This function verifies access to the memory range according to the following table.
| #define _DEBUG | #define DXTRANS_NOROBUST | Pointer verified |
|---|---|---|
| Yes | Yes | Yes |
| Yes | No | Yes |
| No | Yes | No |
| No | No | Yes |
Requirements
Minimum supported client |
Windows XP |
Minimum supported server |
Windows 2000 Server |
Header |
Dxhelper.h |
See also
Reference