bouton dans WS_PAINT

 
case WM_PAINT:{
    printf("0.0\n");
    HBITMAP bitmap;
    HDC dc;
    PAINTSTRUCT ps;
    bitmap = (HBITMAP)LoadImage(NULL,adresse_image_bmp,IMAGE_BITMAP,0,0,LR_LOADFROMFILE);

    dc = BeginPaint(fenetrePrincipale, &ps);

    switch (mode_de_marche){
        case 0:{
            break;
        }
        case 1:{    //cas du mode n°1
            printf("0.1\n");
            edit[1] = SURFACE_REFERENCE (fenetrePrincipale);
            edit[2] = CreateWindow("BUTTON", "Selection de Reference", WS_CHILD | WS_VISIBLE, 50,90, 200,20, fenetrePrincipale, (HMENU)ID_B_SURFACE_REF, instance, 
            edit[3] = CreateWindow("BUTTON", "Selection Surface de Travail", WS_CHILD | WS_VISIBLE, 50,180, 200,20, fenetrePrincipale, (HMENU)ID_B_SURFACE_TRAVAIL, instance, NULL);
            edit[4] = SURFACE_TRAVAIL (fenetrePrincipale);
            edit[5] = MAX (fenetrePrincipale);
            edit[6] = MIN (fenetrePrincipale);
            edit[7] = PIECE (fenetrePrincipale);
            edit[8] = REBUT (fenetrePrincipale);
            break;
        }
        default:{ break;
        }
    }
    DrawState(dc,NULL,NULL,(long)bitmap,NULL,decalage_x,decalage_y,640,480,DST_BITMAP);
    EndPaint(fenetrePrincipale, &ps);
    DeleteObject(bitmap);
    printf("0.2\n\n");
    break;
}

0.0
0.1
0.2

0.0
0.1
0.2

0.0
0.1
0.2

0.0
0.1
0.2

0.0
0.1
...