mirror of
https://github.com/gnif/LookingGlass.git
synced 2024-11-25 14:57:20 +00:00
32 lines
1.2 KiB
C++
32 lines
1.2 KiB
C++
#include <Windows.h>
|
|
#include <malloc.h>
|
|
#include <strsafe.h>
|
|
|
|
/* credit: https://stackoverflow.com/questions/29049686/is-there-a-better-way-to-pass-formatted-output-to-outputdebugstring */
|
|
VOID _DBGPRINT(PCSTR kwszFunction, INT iLineNumber, LPCSTR kszDebugFormatString, ...) \
|
|
{
|
|
INT cbFormatString = 0;
|
|
va_list args;
|
|
PCHAR szDebugString = NULL;
|
|
size_t st_Offset = 0;
|
|
|
|
va_start(args, kszDebugFormatString);
|
|
|
|
cbFormatString = _scprintf("[%s:%d] ", kwszFunction, iLineNumber) * sizeof(CHAR);
|
|
cbFormatString += _vscprintf(kszDebugFormatString, args) * sizeof(CHAR) + 2;
|
|
|
|
/* Depending on the size of the format string, allocate space on the stack or the heap. */
|
|
szDebugString = (PCHAR)_malloca(cbFormatString);
|
|
if (!szDebugString)
|
|
return;
|
|
|
|
/* Populate the buffer with the contents of the format string. */
|
|
StringCbPrintfA(szDebugString, cbFormatString, "[%s:%d] ", kwszFunction, iLineNumber);
|
|
StringCbLengthA(szDebugString, cbFormatString, &st_Offset);
|
|
StringCbVPrintfA(&szDebugString[st_Offset / sizeof(CHAR)], cbFormatString - st_Offset, kszDebugFormatString, args);
|
|
|
|
OutputDebugStringA(szDebugString);
|
|
|
|
_freea(szDebugString);
|
|
va_end(args);
|
|
} |