Re: an error from the expression: CLS_ISCLASS((Class)receiver) File: sendmsg.c Line 321

[David T. Shen]

Thanks for your advise!  

That's my fault, I think the application has build and that's OK,  but
that's not OK actually.  I'm not familiar with GNUStep's.

It's OK right now.  thank you very much!


Fred Kiefer wrote:
> 
> I don't understand this error message either. But you already should get
> some warnings during compilation. sharedApplicatiion is clearly
> misspelled and you should get this told by the compiler. Best you fix
> you compiler warnings and then report back with a bit more information.
> 
> Fred
> 
> David T. Shen wrote:
>> My platform is Windows XP, and I got a simple GUI program.   It compiled
>> well, but when I run it, I got an error:
>> ---------------------
>> Assertion failed!
>> 
>> File: sendmsg.c
>> Line: 321
>> 
>> Expression: CLS_ISCLASS((Class)receiver)
>> 
>> --------------------------------------
>> here is the code and makefile:
>> 
>> ////  AppController.h
>> #ifndef _APPController_H_
>> #define _APPController_H_
>> 
>> #include <Foundation/NSObject.h>
>> 
>> @class NSWindow;
>> @class NSTextField;
>> @class NSNotification;
>> @class NSMenu;
>> 
>> @interface AppController:NSObject
>>      {
>>              NSWindow *window;
>>              NSTextField *label;
>>      }
>>      
>>      - (void) applicaitonWillFinishLaunching:(NSNotification *)not;
>>      - (void) applicationDidFinishLaunching: (NSNotification *)not;
>> 
>> @end
>> 
>> #endif
>> 
>> 
>> -----------------
>> ///// AppController.m
>> #include "AppController.h"
>> #include <AppKit/AppKit.h>
>> 
>> @implementation AppController
>> 
>> -(void) applicationWillFinishLaunching:(NSNotification *)not
>> {
>>      // create menu
>>      NSMenu *menu;
>>      NSMenu *info;
>>      
>>      menu = [NSMenu new];
>>      [menu addItemWithTitle: @"Info"
>>                                                              action:NULL
>>                                                              
>> KeyEquivalent:@""];
>>      [menu addItemWithTitle: @"Hide"
>>                                                              
>> action:@selector(hide:)
>>                                                              
>> KeyEquivalent:@"h"];
>>      [menu addItemWithTitle : @"Quit"
>>                                                              
>> action:@selector(terminate:)
>>                                                              
>> KeyEquivalent:@"q"];
>>                                                              
>>      info = [NSMenu new];                                                    
>>         
>>      [info addItemWithTitle : @"Info Panel..."
>>                                                              
>> action:@selector(orderFrontStandardInfoPanel:)
>>                                                              
>> KeyEquivalent:@""];                                                          
>>                                                    
>>      [info addItemWithTitle : @"Performance"
>>                                                              action:NULL
>>                                                              
>> KeyEquivalent:@""];
>>      [info addItemWithTitle : @"Help"
>>                                                              
>> action:@selector(orderFrontHelpPanel:)
>>                                                              
>> KeyEquivalent:@"?"];
>>                                                              
>>      [menu setSubmenu: info
>>                                              forItem:[menu 
>> itemWithTitle:@"Info"]];
>>                                              
>>      RELEASE(info);
>>      
>>      [NSApp setMainMenu:menu];
>>      RELEASE(menu);
>>      
>>      /**
>>       * create window 
>>      **/
>>      window = [[NSWindow alloc] initWithContentRect:
>> NSMakeRect(300,300,200,200)
>>                                                                              
>>                                                                 
>> styleMask:(NSTitledWindowMask| 
>>                                                                              
>>                                                                              
>>                             NSMiniaturizableWindowMask|
>>                                                                              
>>                                                                              
>>                             NSResizableWindowMask)
>>                                                                              
>>                                                                 backing  : 
>> NSBackingStoreBuffered
>>                                                                              
>>                                                                   defer  : 
>> YES];
>>      [window setTitle:@"Hello window"];
>>      
>>      /**
>>       * Create Lable
>>      **/
>>      label = [[NSTextField alloc] initWithFrame: NSMakeRect(30,30,80,30)];
>>      [label setSelectable: NO];
>>      [label setBezeled:    NO];
>>      [label seDrawBackground: NO];
>>      [label setStringValue : "Hello, This is a text field."];
>>      
>>      [[window contectView] addSubview: label];
>>      
>>      RELEASE(label);
>>      
>> }
>> 
>> -(void) applicationDidFinishLaunching:(NSNotification *)not
>> {
>>      [window makeKeyAndOrderFront : self];
>> }
>> 
>> -(void) dealloc
>> {
>>      RELEASE(window);
>>      [super dealloc];
>> }
>> 
>> //
>> @end
>> 
>> 
>> 
>> ------------------
>> //// main.m
>> #import <AppController.h>
>> #import <AppKit/NSApplication.h>
>> 
>> int main(int argc, const char* argv[] )
>> {
>>      NSAutoreleasePool *pool;
>>      AppController *delegate;
>>      
>>      pool = [[NSAutoreleasePool alloc] init];
>>      delegate = [[AppController alloc] init];
>>      
>>      [NSApplication sharedApplicatiion];
>>      [NSApp setDelegate: delegate];
>>      
>>      RELEASE(pool);
>>      
>>      return NSApplicationMain(argc, argv);
>> }
>> 
>> -----------------
>> //// GNUmakefile
>> 
>> #GNUSTEP_MAKEFILES=/GNUStep/System/Library/Makefiles
>> include $(GNUSTEP_MAKEFILES)/common.make
>> 
>> APP_NAME=firstwindow
>> firstwindow_HEADERS=AppController.h
>> firstwindow_OBJC_FILES=main.m  AppController.m
>> firstwindow_RESOURCE_FILES=firstwindowInfo.plist
>> 
>> include $(GNUSTEP_MAKEFILES)/application.make
>> 
>> 
> 
> 
> 
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