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Displaying a button in a window

Posted on 1998-09-12
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Last Modified: 2013-12-26
'lo
I want to display and (of course!) use  buttons in a window
i tried to use the GetnewControl() function with  a cntl
ressource but it doesn't work. How can I do this?
thx
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Question by:corwin_
2 Comments
 
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Accepted Solution

by:
boonstra earned 150 total points
ID: 1291523
You have not given much information about what did not work, but the following program demonstrates how to use buttons in a window, either with GetNewControl or with GetControl.  It puts up two buttons, one of which beeps, and one of which quits the program.

WindowPtr      gWindow;
ControlHandle gBeepButton,gQuitButton;
      
static int DoMouse(EventRecord *ev)
{
  WindowPtr front, wind;
  short part,modifiers;
  Point where;
  int res = 0;

  front = FrontWindow();
  part = FindWindow(ev->where, &wind);
  where = ev->where;
  modifiers = ev->modifiers;
   
  switch (part) {
    case inSysWindow:
      SystemClick(ev, wind);
      break;
    case inContent:
    {
      ControlHandle theControl;
      int part;
      Point pt;
      pt = ev->where;
      GlobalToLocal(&pt);
      part = FindControl(pt, wind, &theControl);
      if (theControl==gBeepButton) {
        TrackControl(theControl,pt,nil);
        SysBeep(1);
      } else if (theControl==gQuitButton) {
        TrackControl(theControl,pt,nil);
        res=1;
      }
      break;
    }
  }
 
  return res;
}

int main(void)
{
  EventRecord theEvent;
  Rect r;
  int res;
  Boolean done=false,gotEvent;
 
  /* Initialize all the needed managers. */
  InitGraf(&qd.thePort);
  InitFonts();
  InitWindows();
  InitMenus();
  TEInit();
  InitDialogs(nil);
  InitCursor();

  SetRect(&r,40,60,200,100);
  gWindow = NewCWindow(nil, &r, "\pButton Demo", true, documentProc, (WindowPtr) -1, false, 0);
  SetRect(&r,16,10,76,30);
  gBeepButton = NewControl(gWindow, &r, "\pBeep", true, 1, 0, 1, pushButProc, 0);
  OffsetRect(&r,80,0);
  gQuitButton = NewControl(gWindow, &r, "\pQuit", true, 1, 0, 1, pushButProc, 0);
// alternatively, you could get the controls from a resource file
//  gBeepButton = GetNewControl(128, gWindow);
//  gQuitButton = GetNewControl(129, gWindow);
//  
  SetPort(gWindow);
  ShowWindow(gWindow);
 
  while (!done) {
    WindowPtr wind;
    gotEvent = WaitNextEvent(everyEvent,&theEvent,0,NULL);
    if (gotEvent) {
      switch (theEvent.what) {
      case activateEvt:
        break;
      case updateEvt:
        wind = (WindowPtr)theEvent.message;
        if (wind == gWindow) {
          BeginUpdate(gWindow);
          UpdateControls(wind, wind->visRgn);
          EndUpdate(gWindow);
        }
        break;
      case mouseDown:
        res = DoMouse(&theEvent);
        if (res!=0) done=true;
        break;
      }
    }
  }
 
  return 0;  
}


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Author Comment

by:corwin_
ID: 1291524
thx
0

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