winapi - C Win32: Window Automatically closes -

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i wanted create word 'corrupter' justs replaces letters ascii alphabet. however, when 'generate' button pressed, window automatically closes

static handle ghinstance;  hwnd hwndedit; int index[10];  static int_ptr callback maindlgproc(hwnd hwnddlg, uint umsg, wparam wparam, lparam lparam) {     switch (umsg)     {         case wm_initdialog:         {             hwndedit = getwindow(hwnddlg, idc_edit);              return true;         }          case wm_size:             /*              * todo: add code process resizing, when needed.              */             return true;          case wm_command:             switch (get_wm_command_id(wparam, lparam))             {                 case idc_generate:                 {                     char input[1000];                     char output[1000][10];                      int i, strlength, m, map;                     int rnmb;                     int chance;                      getwindowtext(hwndedit, input, 1000);                      srand(time(null));                      strlength = strlen(input);                      for(m=0;m<10;m++)                     {                         map = 0;                         strcpy(output[m], input);                         for(i=0;i<strlength;i++)                         {                             switch(output[m][i])                             {                                 case '\0':                                     continue;                                  case '\n':                                     continue;                                  case ' ':                                     continue;                             }                              chance = rand() % 100;                              if(chance < 25)                             {                                 rnmb = (rand() % 128) + 128;                                  output[m][i] = rnmb;                             }                         }                         index[m] = senddlgitemmessage(hwnddlg , idc_listbox, lb_addstring, 0, (lparam)output[m]);                          map++;                         senddlgitemmessage(hwnddlg, idc_listbox, lb_setitemdata, (wparam)index[m], (lparam)map);                     }                 }                 case idc_close:                     enddialog(hwnddlg, true);                     return true;             }             break;          case wm_close:             enddialog(hwnddlg, 0);             return true;          /*          * todo: add more messages, when needed.          */     }      return false; }

i not see link between generate button , close command

you're missing break statement.

the case case idc_generate falls directly into:

case idc_close:     enddialog(hwnddlg, true);     return true;

you use functions make code readable, , error caught.


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