Sunday, October 16, 2005

Hardcore Programming cont.

1. "Hello World"
New console application,
// stdafx.h

// HelloConsoleWorld.cpp

int _tmain(int argc, _TCHAR* argv[]){
_tprintf(_T("Hello World")); ::MessageBox(NULL, _T("Hello MB World"), _T("MB World"), 0) ; return 0;}

debug - 40 960 HelloConsoleWorld.exe
release - 6 144 HelloConsoleWorld.exe
64bit debug - 31 232 HelloConsoleWorld.exe
64bit release - 7 168 HelloConsoleWorld.exe
64-bit versions are 1KB and 10KB larger. Fine.

Compiling to 64-bit was harder than I thought but creating two new configurations and compiling and linking all configurations I got what I wanted.
First looks at the images in a hex editor reveals that
- 64-bit version has something called _C_specific_handler, google'ing it gives me (as expected) nothing. Will I have problems getting rid of RTL?
- Both versions are compiled as UNICODE pr default. Nice.
Putting all 64-bit versions in ...\x64\... is nice, why not make a ...\x32\... too?
I am content with "Hello World" for now.

2. "DelayWithCancelMT"
New win32 app
Remove resource files, etc, all the code, replace with
#include "stdafx.h"
void APIENTRY _tMyWinMain(HINSTANCE, HINSTANCE, LPTSTR lpCmdLine, int nCmdShow)
{ ::MessageBox(NULL, _T("Hi"), _T("Hi"), 0);

How can I get this to be bellow 1KB exe?
There are many new things turned on in VS 2005 (that I don't know how to turn off).
I will continue tomorrow.

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