🚀 go-pugleaf

Here is the code:

#include <windows.h>
LRESULT CALLBACK (*old_window_proc)(HWND hwnd,UINT uMsg,WPARAM wParam,LPARAM
lParam);
LRESULT CALLBACK new_window_proc(HWND hwnd,UINT uMsg,WPARAM wParam,LPARAM
lParam);

LRESULT CALLBACK hook_proc(int nCode, WPARAM wParam, LPARAM lParam);
HWND hwnd;
int pos;
char *string = "Error in Repsat\n ";
int main(int argc, char **argv)
{
     HHOOK hook;

     pos = atoi(argv[1]);
     hook = SetWindowsHookEx(WH_CBT,hook_proc,NULL,GetCurrentThreadId());

     MessageBox(NULL,string,"Error",MB_OK);
     SetWindowLong(hwnd,GWL_WNDPROC,(LONG)old_window_proc);
     UnhookWindowsHookEx(hook);
     return(0);
}
LRESULT CALLBACK hook_proc(int nCode, WPARAM wParam, LPARAM lParam)
{
     char class_name[100];

     if(nCode < 0)
          return(CallNextHookEx(NULL,nCode,wParam,lParam));

     if(nCode == HCBT_CREATEWND)
     {
          hwnd = (HWND)wParam;
          GetClassName(hwnd,class_name,sizeof(class_name));
          if(stricmp(class_name,"Static") == 0)
               old_window_proc = (WNDPROC)SetWindowLong(hwnd,GWL_WNDPROC,
                                                       (LONG)new_window_proc);
     }

     return(0);
}
LRESULT CALLBACK new_window_proc(HWND hwnd,UINT uMsg,WPARAM wParam,LPARAM
lParam)
{
     SIZE size_string,size_character,size_asterisk;
     RECT rect;
     HDC hdc;
     static HFONT fnt;

     if(uMsg == WM_SETFONT)
     {
          LOGFONT lFont;

          fnt = (HFONT)wParam;
          hdc = GetDC(hwnd);
          if (GetObject(fnt, sizeof(LOGFONT), (LPSTR) &lFont) != 0)
          {
             /* RESET TO BOLD */
                lFont.lfWeight = FW_BOLD;
               fnt = CreateFontIndirect(&lFont);
               wParam = (WPARAM)fnt;
          }
          GetWindowRect(hwnd,&rect);
          GetTextExtentPoint32(hdc,string,strlen(string),&size_string);
          if(rect.right - rect.left + 1 < size_string.cx)
          {
               HWND hwnd_parent;
               int diff;

               diff = size_string.cx - (rect.right - rect.left + 1);
               hwnd_parent = GetParent(hwnd);
               GetWindowRect(hwnd_parent,&rect);
               SetWindowPos(hwnd_parent,NULL,rect.left,rect.top,
                            rect.right - rect.left + 1 + diff,
                            rect.bottom - rect.top + 1,
                            SWP_NOZORDER | SWP_SHOWWINDOW);

               GetWindowRect(hwnd,&rect);
               SetWindowPos(hwnd,NULL,rect.left,rect.top,
                            rect.right - rect.left + 1 + diff,
                            rect.bottom - rect.top + 1,
                            SWP_NOZORDER | SWP_SHOWWINDOW);
          }
     }

     else if(uMsg == WM_PAINT)
     {
          CallWindowProc(old_window_proc,hwnd,uMsg,wParam,lParam);
          hdc = GetDC(hwnd);
          SelectObject(hdc,(HGDIOBJ)(HFONT)fnt);

          SetBkMode(hdc, TRANSPARENT);
          GetWindowRect(hwnd,&rect);
          GetTextExtentPoint32(hdc,string,pos-1,&size_string);
          GetTextExtentPoint32(hdc,&string[pos-1],1,&size_character);
          GetTextExtentPoint32(hdc,"*",1,&size_asterisk);
          rect.right = rect.right - rect.left;
          rect.bottom = rect.bottom - rect.top;
          rect.left = size_string.cx +
                      (size_character.cx - size_asterisk.cx)/2;
          rect.top = 0;
          DrawText(hdc,"*",1,&rect,DT_SINGLELINE | DT_BOTTOM | DT_INTERNAL);

          ReleaseDC(hwnd,hdc);
          return(0);
     }

     return(CallWindowProc(old_window_proc,hwnd,uMsg,wParam,lParam));
}