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Views: 2358 | Replies: 1
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Join Date: Feb 2006
Location: Illinois
Posts: 14
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Rep Power: 3
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Newbie Poster
win32 api mouse coordinates weird I'm writting a program where I need the coordinates of the mouse when it's clicked inside the client area. For some reason, the coordinates seem to be in base 21, maybe higher (I've seen the character k). I'm not sure why this is happening.
Here's the mouse section of the message loop
Here's the mouse section of the message loop
case WM_LBUTTONDOWN:
{
int x = ((int)(short)LOWORD(lParam));
int y = ((int)(short)HIWORD(lParam));
char buf[20];
string s = itoa(x, buf, 21);
s += ", ";
s += itoa(y, buf, 21);
MessageBox(hwnd, s.c_str(), "Distance", MB_OK | MB_APPLMODAL);
return 0;
}
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Join Date: Jun 2005
Location: Tokyo, Japan
Posts: 1,480
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std::string s(itoa(x, buf, 10)); s += ", "; s += itoa(y, buf, 10);;
Read the specification for atoi .
What is the meaning of this cast?
int x = ((int)(short)LOWORD(lParam));
Just using
WORD x = LOWORD( lParam ) ;
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