Screen Snapshot

Hello,

How do I get the screen snapshot, is there an API for that?

Thanks
Avi123

Barry's Screen Capture

and how do I save it to a (bmp?) file & open this bmp (programmaticly) by some other application?

Thanks
Avi123

Quote:

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Originally Posted by Ejaz

Barry's Screen Capture

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I can't download the source! (Article not found!)

Thanks
Avi123

Simulate pressing printscreen key, it will copy screen snapshot to clipboard, latter u can take it from clipboard. For simulating key, use keybd_event() or SendInput() function. and use following key
VK_SNAPSHOT (0x002C -virtual code of print screen)

Thats wierd. Anyway, try this one.

Barry's Screen Capture from CodeProject.

Quote:

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and how do I save it to a (bmp?) file & open this bmp (programmaticly) by some other application?

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use this code:

Code:

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void WriteBmp(char* name,int W,int H,int* data)
{
BITMAPINFO Bmi;
        memset(&Bmi,0,sizeof(BITMAPINFO));
        Bmi.bmiHeader.biSize                        = sizeof(BITMAPINFOHEADER);
        Bmi.bmiHeader.biWidth                        =  W;
        Bmi.bmiHeader.biHeight                        = H;
        Bmi.bmiHeader.biPlanes                        = 1;
        Bmi.bmiHeader.biBitCount                = 32;
        Bmi.bmiHeader.biCompression        = BI_RGB;
        Bmi.bmiHeader.biSizeImage                = W*H*4;

        FILE* image = fopen (name,"wb");
        if(image==0)
                return;
        int h = abs(Bmi.bmiHeader.biHeight);
        int w = abs(Bmi.bmiHeader.biWidth);
        Bmi.bmiHeader.biHeight=h;
        Bmi.bmiHeader.biWidth=w;
        int sz = Bmi.bmiHeader.biSizeImage;

        BITMAPFILEHEADER bfh;
        bfh.bfType=('M'<<8)+'B';
  bfh.bfOffBits=sizeof(BITMAPFILEHEADER)+sizeof(BITMAPINFOHEADER);
  bfh.bfSize=sz+bfh.bfOffBits;
  bfh.bfReserved1=0;
  bfh.bfReserved2=0;
        fwrite(&bfh,sizeof(bfh),1,image);
        fwrite(&Bmi.bmiHeader,sizeof(BITMAPINFOHEADER),1,image);
        fwrite(data,sz,1,image);
        fclose(image);
}

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Cheers