SymGetSymFromName - Win32 Programmer's Reference

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Quick Info

Windows NT
Yes
Win95
Yes
Win32s
No
Import Library
imagehlp.lib
Header File
imagehlp.h
Unicode
No
Platform Notes
Windows 95: IMAGEHLP is available as a redistributable.

SymGetSymFromName

The SymGetSymFromName function locates a symbol for the requested name.

BOOL SymGetSymFromName(

IN HANDLE hProcess,
IN LPSTR Name,
OUT PIMAGEHLP_SYMBOL Symbol
);

Parameters
hProcess

The process handle that was originally passed to SymInitialize.

Name

The symbol name for which a symbol is requested.

Symbol

A pointer to an IMAGEHLP_SYMBOL structure.

Return Value
If the function succeeds, the return value is TRUE.

If the function fails, then the return value is FALSE. To retrieve extended error information, call GetLastError.

Remarks
The SymGetSymFromName function is used to locate a symbol for the requested name. The name can contain a module prefix that isolates the symbol search to a single module's symbol table.

The module prefix is in the form of "module!". The "!" character is the delimiter between the module name and the symbol name. If there is no module prefix, then the search is performed on each module's symbol table in a linear manner, beginning with the first module that is loaded.

Using the module prefix is preferable for two reasons. First, the symbol search occurs much faster. Second, when deferred symbol loading is turned on, the search causes symbols to be loaded for each module that is searched. When the symbol is found, the symbol information is copied into the Symbol buffer provided by the caller. The caller must allocate the Symbol buffer properly and fill in the required parameters in the IMAGEHLP_SYMBOL structure before calling the SymGetSymFromName function.

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