C / C++ / MFC

maheshbhoir.home wrote:

...can you send me any link which will illustrate "how to use these functions" along with some demo solution..

maheshbhoir.home wrote:

which will show ugliness of GUI.

// medium blur
double BlurFilter1[] =
{
     0, 1, 1, 1, 0,
     1, 1, 1, 1, 1,
     1, 1, 1, 1, 1,
     1, 1, 1, 1, 1,
     0, 1, 1, 1, 0,
}; factor = 1.0/21.0; bias = 0.0;
filterBitmap(target, BlurFilter1, 5, 5, 1.0/21.0);

// light blur
double BlurFilter2[] =
{
     0, 1, 0,
     1, 1, 1,
     0, 1, 0,
}; factor = 1.0/5.0; bias = 0.0;
filterBitmap(target, BlurFilter2, 3, 3, 1.0/5.0);

// diagonal medium motion blur
double motionBlurFilter1[] =
{
     1, 0, 0, 0, 0,
     0, 1, 0, 0, 0,
     0, 0, 1, 0, 0,
     0, 0, 0, 1, 0,
     0, 0, 0, 0, 1,
}; factor = 1.0/5.0; bias = 0.0;
filterBitmap(target, motionBlurFilter1, 5, 5, 1.0/5.0);

// horizontal medium motion blur
double motionBlurFilter2[] = 
{
     1, 1, 1, 1, 1,
} factor = 1.0/5.0; bias = 0.0;
filterBitmap(target, motionBlurFilter2, 5, 1, 1.0/5.0);

/ vertical medium motion blur
double motionBlurFilter3[] = 
{
     1,
     1,
     1,
     1,
     1,
} factor = 1.0/5.0; bias = 0.0;
filterBitmap(target, motionBlurFilter3, 1, 5, 1.0/5.0);

// darken to 90% of current
double darkenFilter[] =
{
     1,
} factor = 0.9/1.0; bias = 0.0;
filterBitmap(target, darkenFilter, 1, 1, 0.9/1.0);

// filters a 24 bit bitmap - image must be created via a call to CreateDIBSection
void filterBitmap(HBITMAP target, double *filter, int filterWidth, int filterHeight, double factor, double bias=0.0)
{
    HBITMAP resultBmp;
    BITMAP bmInfo;
    int x, y, filterX, filterY;
    int bmpWidth, bmpHeight;
//    double factor = 0;
//    double bias = 0.0;
    unsigned char *srcImage, *dstImage;
    int bytesPerRow;
    HDC srcDC, destDC;
    HBITMAP bm1, bm2;
    int i;

//    for (i=0; i<filterwidth*filterheight;i++)
//        factor += filter[i];
//    factor = 1.0 / factor;

    // get dimensions
    GetObject(target, sizeof(bmInfo), &bmInfo);
    bmpWidth = bmInfo.bmWidth;
    bmpHeight = bmInfo.bmHeight;

    // get pointer to bitmap bits
    srcImage = (unsigned char*)bmInfo.bmBits;

    // calc width in bytes of word-aligned scanlines
    bytesPerRow = bmpWidth;
    bytesPerRow *= 3;
    if (bytesPerRow %2)
        bytesPerRow ++;

    // create temp bitmap
    resultBmp = CreateCompatibleBitmap(GetDC(0), bmpWidth, bmpHeight);

    // get pointer to bitmap bits
    GetObject(target, sizeof(bmInfo), &bmInfo);
    dstImage = (unsigned char*)bmInfo.bmBits;

    srcDC = CreateCompatibleDC(GetDC(0));
    destDC =  CreateCompatibleDC(GetDC(0));

    bm1 = (HBITMAP)SelectObject(srcDC, target);
    bm2 = (HBITMAP)SelectObject(destDC, resultBmp);

    for (x=0; x<bmpWidth; x++)
    for (y=0; y<<bmpheight;y++)
    {
        double red=0.0, green=0.0, blue=0.0;
        //multiply every value of the filter with corresponding image pixel
        for(filterX = 0; filterX < filterWidth; filterX++)
        for(filterY = 0; filterY < filterHeight; filterY++)
        {
            int imageX = (x - filterWidth / 2 + filterX + bmpWidth) % bmpWidth;
            int imageY = (y - filterHeight / 2 + filterY + bmpHeight) % bmpHeight;

            red += srcImage[imageX*3 + bytesPerRow*imageY + 2] * filter[filterX +filterWidth*filterY];
            green += srcImage[imageX*3 + bytesPerRow*imageY + 1] * filter[filterX + filterWidth*filterY];
            blue += srcImage[imageX*3 + bytesPerRow*imageY + 0] * filter[filterX + filterWidth*filterY];
        }
        //truncate values smaller than zero and larger than 255
        dstImage[x*3 + bytesPerRow*y + 2] = min(max((int)(factor * red + bias), 0), 255);
        dstImage[x*3 + bytesPerRow*y + 1] = min(max((int)(factor * green + bias), 0), 255);
        dstImage[x*3 + bytesPerRow*y + 0] = min(max((int)(factor * blue + bias), 0), 255);

        //abs values smaller than zero and trunc larger than 255
//        dstImage[x*3 + bytesPerRow*y + 2] = min(abs(int(factor * red + bias)), 255);
//        dstImage[x*3 + bytesPerRow*y + 1] = min(abs(int(factor * green + bias)), 255);
//        dstImage[x*3 + bytesPerRow*y + 0] = min(abs(int(factor * blue + bias)), 255);
    }
    BitBlt(destDC, 0,0, bmpWidth, bmpHeight, srcDC, 0, 0, SRCCOPY);
    DeleteObject(resultBmp);
    SelectObject(srcDC, bm1);
    SelectObject(destDC, bm2);
    DeleteDC(srcDC);
    DeleteDC(destDC);
}

MsmVc wrote:

yes i have a file a.txt and no i want to set file a.txt size through edit box.I mean when user set it size is 10kb or 20kb then it will affect on file.Plz help me

FILE *fleCredentials;

	try {
		
		fleCredentials = fopen("abc.txt", "w+");
		
		fprintf(fleCredentials, "%s \n",m_password1);
		
		
		fprintf(fleCredentials, "%s\n",m_repassword1);

		
		fclose(fleCredentials);
	}
	catch(...)
	{
		
		AfxMessageBox("Could not validate the credentials");
	}

MsmVc wrote:

Now i want to set the file size of abc.txt through edit box.

MsmVc wrote:

How can i set the file size