C / C++ / C++.NET : Temps depuis demarrage de windows (2) win32 vc++ asm

Description

Dans zip: exe + cpp, rc et resource.h pour recompiler.
Version de Kirua refaite avec fenetre.

Source / Exemple :

#include <windows.h>
#include "resource.h"

HWND htim;
DWORD dwstart;
DWORD idtimer;
char szbuff[40];

__declspec (naked) char* __stdcall bnultoa(unsigned int dwnum, char* szdst)
{
  __asm {
    mov     eax, [esp+4]
    mov     ecx, [esp+8]
    or      eax, eax
    jnz     short LBL1
    lea     eax, [ecx+1]
    mov     byte ptr[ecx], 48
    mov     byte ptr[eax], 0
    ret     8
 LBL1:
    mov     [esp-4], edi
    mov     [esp-8], ecx
    mov     edi, ecx
    mov     ecx, eax
 LBL2:
    mov     eax, -858993459
    mul     ecx
    mov     eax, edx
    shr     eax, 3
    mov     edx, ecx
    lea     ecx, [eax+eax*8]
    add     ecx, eax
    sub     edx, ecx
    add     dl, 48
    mov     [edi], dl
    mov     ecx, eax
    inc     edi
    test    eax, eax
    jnz     short LBL2
    mov     [edi], al
    mov     [esp-12], edi
    mov     eax, [esp-8]
 LBL3:
    dec     edi
    mov     dl, [eax]
    mov     cl, [edi]
    mov     [edi], dl
    mov     [eax], cl
    inc     eax
    cmp     eax, edi
    jb      short LBL3
    mov     edi, [esp-4]
    mov     eax, [esp-12]
    ret     8
  }
}

void CALLBACK TimProc(HWND hwnd, UINT mssg, UINT idEvent, DWORD dwTime)
{
  DWORD d, h, m, s;
  char *c;
  dwstart++;
  d = dwstart / (60*60*24);
  h = dwstart % (60*60*24);
  m = h % (60*60);
  h /= (60*60);
  s = m % 60;
  m /= 60;
  c = bnultoa(d, szbuff);

  c++ = 32; *c++ = 'j'; *c++ = 32;
  c = bnultoa(h, c);

  c++ = 32; *c++ = 'h'; *c++ = 32;
  c = bnultoa(m, c);

  c++ = 32; *c++ = 'm'; *c++ = 32;
  c = bnultoa(s, c);

  c++ = 32; *c++ = 's'; *c = 0;
  SetWindowText(htim, szbuff);
}

BOOL CALLBACK AppDlgProc(HWND hdlg, UINT mssg, WPARAM wParam, LPARAM lParam)
{
  switch(mssg) {
    case WM_INITDIALOG:
      SetClassLong(hdlg, GCL_HICON, (long)LoadIcon(0, IDI_APPLICATION));
      htim = GetDlgItem(hdlg, ID_TIME);
      dwstart = GetTickCount() / 1000;
      idtimer = SetTimer(0, 0, 1000, TimProc);
      TimProc(0, 0, 0, 0); // pour affichage immediat
      return 1;
    case WM_COMMAND:
      if(wParam == IDCANCEL) {
        KillTimer(0, idtimer);
        EndDialog(hdlg, 0);
      }
  }
  return 0;
}

int WINAPI WinMain(HINSTANCE hinst, HINSTANCE, PSTR, int)
{
  DialogBoxParam(hinst, (LPCTSTR)IDD_APP, 0, AppDlgProc, 0);
  return 0;
}

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