从笔尖Objective-C的清醒调用C函数 [英] Calling C function in Objective-C Awake from Nib

问题描述

我不得不实施在Objective-C类C函数，通常会被调用与 INT主（在它自己的文件）。由于我不熟悉拼接code我需要知道如何把它无论是在 awakefromnib 或的applicationDidFinishLaunching 从可可段内。或者，如果有一个更好的方法来做到这一点，我听着。

这里有没有得到太多的技术的例子：

  //进口可可＃进口AppDelegate.h
...// C Inlcudes
＃包括LT＆;＆stdio.h中GT;//（INT主不得不更改为其他明显）INT DOS（）{
的printf（我是一个C程序\\ n）;
}//（回可可）@implementation的AppDelegate@synthesize窗口; - （无效）的applicationDidFinishLaunching：（NSNotification *）aNotification
{// [这是我需要我上面的C函数来执行]
 




解决方案

这就是所谓的完全一样，你从C会，你可以调用任何你喜欢的C函数：

  //进口可可＃进口AppDelegate.h
...// C Inlcudes
＃包括LT＆;＆stdio.h中GT;//（INT主不得不更改为其他明显）INT DOS（为const char *文件名）
{
    的printf（我通过'％s'的\\ n，文件名）;
}//（回可可）@implementation的AppDelegate@synthesize窗口; - （无效）的applicationDidFinishLaunching：（NSNotification *）aNotification
{
    DOS（/路径/要/一些/文件）;
}
 

I had to implement a C function in an Objective-C class that normally would get called with int main (in it's own file). Since I'm unfamiliar with splicing code I need to know how to have it called upon in either the awakefromnib or applicationDidFinishLaunching from within the Cocoa section. Or if there's a much better way to do this I'm listening.

Here's an example without getting too technical:

// Cocoa Imports

#import "AppDelegate.h"
...

// C Inlcudes
#include <stdio.h> 

// (int main had to change to something else obviously)

int dos () { 
printf ("I'm a C program\n"); 
}

// (back to cocoa)

@implementation AppDelegate

@synthesize window;

- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{

//[This is where I need my C function above to execute]

解决方案

It's called just the same as you would from C and you can call any C function you like:

// Cocoa Imports

#import "AppDelegate.h"
...

// C Inlcudes
#include <stdio.h> 

// (int main had to change to something else obviously)

int dos (const char *filename)
{ 
    printf ("I was passed '%s'\n", filename); 
}

// (back to cocoa)

@implementation AppDelegate

@synthesize window;

- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
    dos("/path/to/some/file");
}

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