COCOS2DX 3.x (two ways to screen capture)

"Rendertexture"

rendertexture This dynamic texture class , as its name implies, is the ability to dynamically create texture images.

screen main steps:

> start:render->begin ();

> Traversal scenario:scene->visit ();

> End:render->end ();

> Save:render->savetofile (string& filename, Image::format Format);

Where Image::format is a picture format, it can be saved as PNG, or JPG in two different formats.

namely:Image::format::P ng,image::format::jpg.

The first method:

1. Methods

void Helloworld::capture (ref* sender) {    Cclog ("screenshot");     Get the screen size size    winsize = Ccdirector::shareddirector ()->getwinsize ();     Create rendertexture, texture picture size is window size winsize    rendertexture* screen = Rendertexture::create (Winsize.width, Winsize.height);     Screen    screen->begin ();            Start scratching the screen    this->getparent ()->visit ();//traverse all the child nodes of the scene in the current scenes, and draw them into screens    screen->end ();              End Capture Screen     //Save    Screen->savetofile ("Screenshot.png", Image::format::P ng);//Save as PNG format    //screen-> SaveToFile ("Screenshot.jpg", image::format::jpg); Save as JPG format}//

　　

2. Save path

> Win32: saved in debug.win32/ directory.

> Android: save in /data/data/com.summer.hello/files/screenshot.png .

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The second method;

"Utils::capturescreen"

In the v3.2 version , theUtils::capturescreen () method is added to save the screen.

1. Definition

    //> Aftercaptured: This method will be executed after capturing the command.    //                    > BOOL   : The capture screen is successful.    //                    > string: The path of the store.    //> FileName      : the name.    //                    > can be just a file name.  screenshot.png like this.    //                    > can also be an absolute path. /sdcard/screenshot.png like this.    void Capturescreen (const std::function<void (bool, const std::string&) >& aftercaptured, const std: :string& filename)//

　　

2. Methods

screen void Helloworld::capture (ref* sender) {    Cclog ("screenshot");    Utils::capturescreen (Cc_callback_2 (Helloworld::aftercapture, this), "Screenshot.png");} After execution aftercapturevoid Helloworld::aftercapture (bool succeed, const std::string& outputFile) {    if (succeed)    {        cclog ("%s", Outputfile.c_str ());        Display        sprite* sp = sprite::create (outputFile);        Sp->setposition (WINSIZE/2);        This->addchild (SP);        Sp->setscale (0.25); Indent    }    else    {        cclog ("Capture screen failed.");}    } //

　　

3. Save path

FileName can be just a file name (saved to a relative path ): "Screenshot.png"like this.

FileName can also be an absolute path : "/sdcard/screenshot.png"like this.

COCOS2DX 3.x (two ways of the screen)