Add get_error_msg

pull/1166/head
0x9ef 2019-07-15 20:30:40 +03:00 committed by Alexander Medvednikov
parent 9b020fad53
commit 9b5383341d
1 changed files with 32 additions and 0 deletions

View File

@ -37,3 +37,35 @@ pub fn get_module_filename(handle HANDLE) ?string {
}
}
}
// Ref - https://docs.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-formatmessagea#parameters
const (
FORMAT_MESSAGE_ALLOCATE_BUFFER = 0x00000100
FORMAT_MESSAGE_ARGUMENT_ARRAY = 0x00002000
FORMAT_MESSAGE_FROM_HMODULE = 0x00000800
FORMAT_MESSAGE_FROM_STRING = 0x00000400
FORMAT_MESSAGE_FROM_SYSTEM = 0x00001000
FORMAT_MESSAGE_IGNORE_INSERTS = 0x00000200
)
// Ref - winnt.h
const (
SUBLANG_NEUTRAL = 0x00
SUBLANG_DEFAULT = 0x01
LANG_NEUTRAL = (SUBLANG_NEUTRAL)
)
fn ptr_get_error_message(code u32) voidptr {
mut buf := voidptr(0)
C.FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER
| FORMAT_MESSAGE_FROM_SYSTEM
| FORMAT_MESSAGE_IGNORE_INSERTS,
0, code, C.MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), &buf, 0, 0)
return buf
}
pub fn get_error_msg(code u32) string {
_ptrdata := ptr_get_error_message(code)
return tos(_ptrdata, C.strlen(_ptrdata))
}