Lists

Terms and Conditions
Lists hosted on this site
Email the Postmaster
Tips for posting to public mailing lists

How do I set the cursor for an application?

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

How do I set the cursor for an application?

Subject: How do I set the cursor for an application?
From: Dave Mihalik <email@hidden>
Date: Thu, 12 Apr 2007 00:11:01 -0400

I have a simple application that displays a main window. For this simple application, I would like to change the background color of the main window to red and also set the mouse cursor for the application to the openhandCursor cursor . I have successfully set the background color of the main window. Now, I just need to be able to set the mouse cursor.

Here is my sample program using the set and push methods:

#import <Cocoa/Cocoa.h>

int main(int argc, const char **argv)
{
   NSAutoreleasePool *myPool;
   NSWindow *myMainWindow;
   NSRect  myRect;
   NSColor *myWindowBackColor;
   NSCursor *myCursor;

   myPool = [[NSAutoreleasePool alloc] init];
   NSApp = [NSApplication sharedApplication];

   myRect = NSMakeRect(100,350,800,600);

   myMainWindow = [[NSWindow alloc]
				   initWithContentRect: myRect
				             styleMask: NSTitledWindowMask |
					                    NSClosableWindowMask |
								        NSMiniaturizableWindowMask |
								        NSResizableWindowMask
				               backing: NSBackingStoreBuffered
                                 defer: NO];

   // Set main window background color to red
   myWindowBackColor = [NSColor colorWithDeviceRed: 1
                                             green: 0
										      blue:  0
										     alpha: 1.0];

   [myMainWindow setBackgroundColor:myWindowBackColor];

   // Set the application cursor
   myCursor = [NSCursor openHandCursor];

// According to the documentation at: http://developer.apple.com/documentation/Cocoa/Conceptual/CursorMgmt/ Tasks/ChangingCursors.html // it says "you can send a set message to the cursor." [myCursor set]; // This does not work. The cursor is still an arrow.

// According to the documentation at: http://developer.apple.com/documentation/Cocoa/Conceptual/CursorMgmt/ Tasks/ChangingCursors.html // it says that "You can manage cursors in a stack, using the push and pop methods of NSCursor. The stack’s top cursor is the current cursor." [myCursor push]; // This does not work. The cursor is still an arrow.

   [myMainWindow performZoom:NSApp];
   [myMainWindow makeKeyAndOrderFront: nil];
   [NSApp run];

   [myPool release];
   return(EXIT_SUCCESS);
}

I have also tried setting the mouse cursor using resetCursorRects along with addCursorRect in the following example. The following example will set the mouse cursor only after the mouse has exited the main window view area and then returned back to the main window view area. When the program starts, the arrow cursor is displayed. If the mouse cursor is moved to the window menu area and then back to the main window view area, then the mouse cursor will change to the openhandCursor. I want the mouse to change to the hand when the main window is initially displayed without having to move the mouse to a specific region of the main window.

#import <Cocoa/Cocoa.h>

@interface WindowView : NSView{}
-(void)resetCursorRects;
@end

int main(int argc, const char **argv)
{
   NSAutoreleasePool *myPool;
   NSWindow *myMainWindow;
   NSRect  myRect;
   NSColor *myWindowBackColor;
   NSCursor *myCursor;
   NSView   *myWindowView;

   myPool = [[NSAutoreleasePool alloc] init];
   NSApp = [NSApplication sharedApplication];

   myRect = NSMakeRect(100,350,800,600);

   myMainWindow = [[NSWindow alloc]
				   initWithContentRect: myRect
				             styleMask: NSTitledWindowMask |
					                    NSClosableWindowMask |
								        NSMiniaturizableWindowMask |
								        NSResizableWindowMask
				               backing: NSBackingStoreBuffered
                                 defer: NO];

myWindowView = [[[WindowView alloc] initWithFrame:myRect] autorelease];

   [myMainWindow setContentView:myWindowView];
   [myMainWindow setDelegate:myWindowView];

   // Set main window background color to red
   myWindowBackColor = [NSColor colorWithDeviceRed: 1
                                             green: 0
										      blue:  0
										     alpha: 1.0];

   [myMainWindow setBackgroundColor:myWindowBackColor];

   [myMainWindow performZoom:NSApp];
   [myMainWindow makeKeyAndOrderFront: nil];
   [NSApp run];

   [myPool release];
   return(EXIT_SUCCESS);
}

@implementation WindowView

-(void)resetCursorRects { [self addCursorRect:[self visibleRect] cursor:[NSCursor openHandCursor]]; }

@end


Any help is appreciated...
_______________________________________________

Cocoa-dev mailing list (email@hidden)

Do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com

Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden



Prev by Date:
Re: NSOutlineView problem

Next by Date:
Force update

Previous by thread:
Re: objectFileHasPlusLoadMethod

Next by thread:
Force update

Index(es):

Date
Thread