VB breakpoint Overview

Multibytetowidechar, ANSI string to Unicode string
Widechartomultibyte, Unicode string converted to ANSI string

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Rtcr8valfrombstr // converts a string to a floating point number.
The rtcmsgbox dialog box displays information.
Rtcbeep // call the speaker
Rtcgetpresentdate // get the current date

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String-related breakpoints:
_ Comparison of vbastrcomp strings
_ Comparison of vbastrcmp strings
_ Vbastrcompvar: Compares whether strings are equal
_ Vbastrcopy: copy a string
_ Vbastrmove move string
Strconv conversion string
_ Vbavarcat connection string
_ Vbastrlike
_ Vbastrtextcomp
_ Vbastrtextlike

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Variable-related breakpoint:

Varbstrcmp comparison string
Varcycmp comparison string
_ Vbavarcompeq
_ Vbavarcomple
_ Vbavarcomplt
_ Vbavarcompge
_ Vbavarcompgt
_ Vbavarcompne
_ Vbavarint
_ Vbavartextcmpeq
_ Vbavartextcmpge
_ Vbavartextcmpgt
_ Vbavartextcmple
_ Vbavartextcmplt
_ Vbavartextcmpne
_ Vbavartexttsteq
_ Vbavartexttstge
_ Vbavartexttstgt
_ Vbavartexttstle
_ Vbavartexttstlt
_ Vbavartexttstne
_ Vbavartstge
_ Vbavartstgt
_ Vbavartstle
_ Vbavartstlt

_ V3164var // converts a variant to I4 (a long integer)
_ Vbavartsteq // compare whether the variables are equal;
_ Vbavartstne // compare whether two variables are not equal _ vbavartstne seems to be used for self-verification. Normally, the return value is 0.

//-------------------------------------------
File-related breakpoints:
_ Vbafileopen
_ Vbainputfile
_ Vbafileseek
_ Vbawritefile
_ Vbafileclose
Rtcfileattributes
Rtcfiledatetime
Rtcfilelen
Rtcfilelength

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Time limit breakpoint: (API function)
Comparefiletime
Getlocaltime
Getsystemtime
Gettimezoneinformation

//--------------------------------------------
Msvcrt. difftime ()
Msvcrt. Time ()

VB pointer:
Throw

Vb dll also calls some functions in oleauto32.dll. Oleauto32.dll is a common proxy/stub DLL. The prototype of each function is defined in and described in msdn. This also helps to understand the role of functions in vb dll.